refactor code

fix bug: miss time import (#36 )
* add execute files * add protoc-osx * add rpc generation * add rpc generation * add: rpc template generation * optimize gomod cache * add README.md * format error * reactor templatex.go * update project.go & README.md * fix bug: miss time import
2020-09-03 14:00:09 +08:00 · 2020-09-03 13:57:28 +08:00 · 2020-09-03 10:15:14 +08:00 · 2020-09-03 08:34:11 +08:00 · 2020-09-02 15:14:27 +08:00 · 2020-09-01 16:04:39 +08:00
179 changed files with 6139 additions and 1157 deletions
--- a/.codecov.yml
+++ b/.codecov.yml
@@ -1,3 +1,4 @@
 ignore:
-  - "example/*"
-  - "tools/*"
+  - "doc"
+  - "example"
+  - "tools"
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -1,36 +0,0 @@
-run:
-  #  concurrency: 6
-  timeout: 5m
-  skip-dirs:
-    - core
-    - doc
-    - example
-    - rest
-    - rpcx
-    - tools
-
-
-linters:
-  disable-all: true
-  enable:
-    - bodyclose
-    - deadcode
-    - errcheck
-    - gosimple
-    - govet
-    - ineffassign
-    - staticcheck
-    - structcheck
-    - typecheck
-    - unused
-    - varcheck
-#    - dupl
-
-
-linters-settings:
-
-issues:
-  exclude-rules:
-    - linters:
-        - staticcheck
-      text: 'SA1019: (baseresponse.BoolResponse|oldresponse.FormatBadRequestResponse|oldresponse.FormatResponse)|SA5008: unknown JSON option ("optional"|"default=|"range=|"options=)'
--- a/core/collection/timingwheel_test.go
+++ b/core/collection/timingwheel_test.go
@@ -213,7 +213,10 @@ func TestTimingWheel_SetTimer(t *testing.T) {
 	}

 	for _, test := range tests {
+		test := test
 		t.Run(stringx.RandId(), func(t *testing.T) {
+			t.Parallel()
+
 			var count int32
 			ticker := timex.NewFakeTicker()
 			tick := func() {
@@ -291,7 +294,10 @@ func TestTimingWheel_SetAndMoveThenStart(t *testing.T) {
 	}

 	for _, test := range tests {
+		test := test
 		t.Run(stringx.RandId(), func(t *testing.T) {
+			t.Parallel()
+
 			var count int32
 			ticker := timex.NewFakeTicker()
 			tick := func() {
@@ -376,7 +382,10 @@ func TestTimingWheel_SetAndMoveTwice(t *testing.T) {
 	}

 	for _, test := range tests {
+		test := test
 		t.Run(stringx.RandId(), func(t *testing.T) {
+			t.Parallel()
+
 			var count int32
 			ticker := timex.NewFakeTicker()
 			tick := func() {
@@ -454,7 +463,10 @@ func TestTimingWheel_ElapsedAndSet(t *testing.T) {
 	}

 	for _, test := range tests {
+		test := test
 		t.Run(stringx.RandId(), func(t *testing.T) {
+			t.Parallel()
+
 			var count int32
 			ticker := timex.NewFakeTicker()
 			tick := func() {
@@ -542,7 +554,10 @@ func TestTimingWheel_ElapsedAndSetThenMove(t *testing.T) {
 	}

 	for _, test := range tests {
+		test := test
 		t.Run(stringx.RandId(), func(t *testing.T) {
+			t.Parallel()
+
 			var count int32
 			ticker := timex.NewFakeTicker()
 			tick := func() {
--- a/core/discov/kubernetes/discov-namespace.yaml
+++ b/core/discov/kubernetes/discov-namespace.yaml
@@ -1,4 +1,4 @@
 apiVersion: v1
 kind: Namespace
 metadata:
-  name: discovery
+  name: discov
--- a/core/discov/kubernetes/etcd.yaml
+++ b/core/discov/kubernetes/etcd.yaml
@@ -1,16 +1,16 @@
 apiVersion: v1
 kind: Service
 metadata:
-  name: discov
-  namespace: discovery
+  name: etcd
+  namespace: discov
 spec:
  ports:
-    - name: discov-port
+    - name: etcd-port
      port: 2379
      protocol: TCP
      targetPort: 2379
  selector:
-    app: discov
+    app: etcd

 ---

@@ -18,30 +18,30 @@ apiVersion: v1
 kind: Pod
 metadata:
  labels:
-    app: discov
-    discov_node: discov0
-  name: discov0
-  namespace: discovery
+    app: etcd
+    etcd_node: etcd0
+  name: etcd0
+  namespace: discov
 spec:
  containers:
    - command:
        - /usr/local/bin/etcd
        - --name
-        - discov0
+        - etcd0
        - --initial-advertise-peer-urls
-        - http://discov0:2380
+        - http://etcd0:2380
        - --listen-peer-urls
        - http://0.0.0.0:2380
        - --listen-client-urls
        - http://0.0.0.0:2379
        - --advertise-client-urls
-        - http://discov0:2379
+        - http://etcd0:2379
        - --initial-cluster
-        - discov0=http://discov0:2380,discov1=http://discov1:2380,discov2=http://discov2:2380,discov3=http://discov3:2380,discov4=http://discov4:2380
+        - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
        - --initial-cluster-state
        - new
-      image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/etcd:latest
-      name: discov0
+      image: quay.io/coreos/etcd:latest
+      name: etcd0
      ports:
        - containerPort: 2379
          name: client
@@ -49,8 +49,6 @@ spec:
        - containerPort: 2380
          name: server
          protocol: TCP
-  imagePullSecrets:
-    - name: aliyun
  affinity:
    podAntiAffinity:
      requiredDuringSchedulingIgnoredDuringExecution:
@@ -59,7 +57,7 @@ spec:
              - key: app
                operator: In
                values:
-                  - discov
+                  - etcd
          topologyKey: "kubernetes.io/hostname"
  restartPolicy: Always

@@ -69,9 +67,9 @@ apiVersion: v1
 kind: Service
 metadata:
  labels:
-    discov_node: discov0
-  name: discov0
-  namespace: discovery
+    etcd_node: etcd0
+  name: etcd0
+  namespace: discov
 spec:
  ports:
    - name: client
@@ -83,7 +81,7 @@ spec:
      protocol: TCP
      targetPort: 2380
  selector:
-    discov_node: discov0
+    etcd_node: etcd0

 ---

@@ -91,30 +89,30 @@ apiVersion: v1
 kind: Pod
 metadata:
  labels:
-    app: discov
-    discov_node: discov1
-  name: discov1
-  namespace: discovery
+    app: etcd
+    etcd_node: etcd1
+  name: etcd1
+  namespace: discov
 spec:
  containers:
    - command:
        - /usr/local/bin/etcd
        - --name
-        - discov1
+        - etcd1
        - --initial-advertise-peer-urls
-        - http://discov1:2380
+        - http://etcd1:2380
        - --listen-peer-urls
        - http://0.0.0.0:2380
        - --listen-client-urls
        - http://0.0.0.0:2379
        - --advertise-client-urls
-        - http://discov1:2379
+        - http://etcd1:2379
        - --initial-cluster
-        - discov0=http://discov0:2380,discov1=http://discov1:2380,discov2=http://discov2:2380,discov3=http://discov3:2380,discov4=http://discov4:2380
+        - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
        - --initial-cluster-state
        - new
-      image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/etcd:latest
-      name: discov1
+      image: quay.io/coreos/etcd:latest
+      name: etcd1
      ports:
        - containerPort: 2379
          name: client
@@ -122,8 +120,6 @@ spec:
        - containerPort: 2380
          name: server
          protocol: TCP
-  imagePullSecrets:
-    - name: aliyun
  affinity:
    podAntiAffinity:
      requiredDuringSchedulingIgnoredDuringExecution:
@@ -132,7 +128,7 @@ spec:
              - key: app
                operator: In
                values:
-                  - discov
+                  - etcd
          topologyKey: "kubernetes.io/hostname"
  restartPolicy: Always

@@ -142,9 +138,9 @@ apiVersion: v1
 kind: Service
 metadata:
  labels:
-    discov_node: discov1
-  name: discov1
-  namespace: discovery
+    etcd_node: etcd1
+  name: etcd1
+  namespace: discov
 spec:
  ports:
    - name: client
@@ -156,7 +152,7 @@ spec:
      protocol: TCP
      targetPort: 2380
  selector:
-    discov_node: discov1
+    etcd_node: etcd1

 ---

@@ -164,30 +160,30 @@ apiVersion: v1
 kind: Pod
 metadata:
  labels:
-    app: discov
-    discov_node: discov2
-  name: discov2
-  namespace: discovery
+    app: etcd
+    etcd_node: etcd2
+  name: etcd2
+  namespace: discov
 spec:
  containers:
    - command:
        - /usr/local/bin/etcd
        - --name
-        - discov2
+        - etcd2
        - --initial-advertise-peer-urls
-        - http://discov2:2380
+        - http://etcd2:2380
        - --listen-peer-urls
        - http://0.0.0.0:2380
        - --listen-client-urls
        - http://0.0.0.0:2379
        - --advertise-client-urls
-        - http://discov2:2379
+        - http://etcd2:2379
        - --initial-cluster
-        - discov0=http://discov0:2380,discov1=http://discov1:2380,discov2=http://discov2:2380,discov3=http://discov3:2380,discov4=http://discov4:2380
+        - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
        - --initial-cluster-state
        - new
-      image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/etcd:latest
-      name: discov2
+      image: quay.io/coreos/etcd:latest
+      name: etcd2
      ports:
        - containerPort: 2379
          name: client
@@ -195,8 +191,6 @@ spec:
        - containerPort: 2380
          name: server
          protocol: TCP
-  imagePullSecrets:
-    - name: aliyun
  affinity:
    podAntiAffinity:
      requiredDuringSchedulingIgnoredDuringExecution:
@@ -205,7 +199,7 @@ spec:
              - key: app
                operator: In
                values:
-                  - discov
+                  - etcd
          topologyKey: "kubernetes.io/hostname"
  restartPolicy: Always

@@ -215,9 +209,9 @@ apiVersion: v1
 kind: Service
 metadata:
  labels:
-    discov_node: discov2
-  name: discov2
-  namespace: discovery
+    etcd_node: etcd2
+  name: etcd2
+  namespace: discov
 spec:
  ports:
    - name: client
@@ -229,7 +223,7 @@ spec:
      protocol: TCP
      targetPort: 2380
  selector:
-    discov_node: discov2
+    etcd_node: etcd2

 ---

@@ -237,30 +231,30 @@ apiVersion: v1
 kind: Pod
 metadata:
  labels:
-    app: discov
-    discov_node: discov3
-  name: discov3
-  namespace: discovery
+    app: etcd
+    etcd_node: etcd3
+  name: etcd3
+  namespace: discov
 spec:
  containers:
    - command:
        - /usr/local/bin/etcd
        - --name
-        - discov3
+        - etcd3
        - --initial-advertise-peer-urls
-        - http://discov3:2380
+        - http://etcd3:2380
        - --listen-peer-urls
        - http://0.0.0.0:2380
        - --listen-client-urls
        - http://0.0.0.0:2379
        - --advertise-client-urls
-        - http://discov3:2379
+        - http://etcd3:2379
        - --initial-cluster
-        - discov0=http://discov0:2380,discov1=http://discov1:2380,discov2=http://discov2:2380,discov3=http://discov3:2380,discov4=http://discov4:2380
+        - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
        - --initial-cluster-state
        - new
-      image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/etcd:latest
-      name: discov3
+      image: quay.io/coreos/etcd:latest
+      name: etcd3
      ports:
        - containerPort: 2379
          name: client
@@ -268,8 +262,6 @@ spec:
        - containerPort: 2380
          name: server
          protocol: TCP
-  imagePullSecrets:
-    - name: aliyun
  affinity:
    podAntiAffinity:
      requiredDuringSchedulingIgnoredDuringExecution:
@@ -278,7 +270,7 @@ spec:
              - key: app
                operator: In
                values:
-                  - discov
+                  - etcd
          topologyKey: "kubernetes.io/hostname"
  restartPolicy: Always

@@ -288,9 +280,9 @@ apiVersion: v1
 kind: Service
 metadata:
  labels:
-    discov_node: discov3
-  name: discov3
-  namespace: discovery
+    etcd_node: etcd3
+  name: etcd3
+  namespace: discov
 spec:
  ports:
    - name: client
@@ -302,7 +294,7 @@ spec:
      protocol: TCP
      targetPort: 2380
  selector:
-    discov_node: discov3
+    etcd_node: etcd3

 ---

@@ -310,30 +302,30 @@ apiVersion: v1
 kind: Pod
 metadata:
  labels:
-    app: discov
-    discov_node: discov4
-  name: discov4
-  namespace: discovery
+    app: etcd
+    etcd_node: etcd4
+  name: etcd4
+  namespace: discov
 spec:
  containers:
    - command:
        - /usr/local/bin/etcd
        - --name
-        - discov4
+        - etcd4
        - --initial-advertise-peer-urls
-        - http://discov4:2380
+        - http://etcd4:2380
        - --listen-peer-urls
        - http://0.0.0.0:2380
        - --listen-client-urls
        - http://0.0.0.0:2379
        - --advertise-client-urls
-        - http://discov4:2379
+        - http://etcd4:2379
        - --initial-cluster
-        - discov0=http://discov0:2380,discov1=http://discov1:2380,discov2=http://discov2:2380,discov3=http://discov3:2380,discov4=http://discov4:2380
+        - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
        - --initial-cluster-state
        - new
-      image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/etcd:latest
-      name: discov4
+      image: quay.io/coreos/etcd:latest
+      name: etcd4
      ports:
        - containerPort: 2379
          name: client
@@ -341,8 +333,6 @@ spec:
        - containerPort: 2380
          name: server
          protocol: TCP
-  imagePullSecrets:
-    - name: aliyun
  affinity:
    podAntiAffinity:
      requiredDuringSchedulingIgnoredDuringExecution:
@@ -351,7 +341,7 @@ spec:
              - key: app
                operator: In
                values:
-                  - discov
+                  - etcd
          topologyKey: "kubernetes.io/hostname"
  restartPolicy: Always

@@ -361,9 +351,9 @@ apiVersion: v1
 kind: Service
 metadata:
  labels:
-    discov_node: discov4
-  name: discov4
-  namespace: discovery
+    etcd_node: etcd4
+  name: etcd4
+  namespace: discov
 spec:
  ports:
    - name: client
@@ -375,4 +365,4 @@ spec:
      protocol: TCP
      targetPort: 2380
  selector:
-    discov_node: discov4
+    etcd_node: etcd4
--- a/core/filex/file_test.go
+++ b/core/filex/file_test.go
@@ -4,9 +4,8 @@ import (
 	"os"
 	"testing"

-	"github.com/tal-tech/go-zero/core/fs"
-
 	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/fs"
 )

 const (
--- a/core/logx/logs.go
+++ b/core/logx/logs.go
@@ -213,6 +213,7 @@ func Infof(format string, v ...interface{}) {
 func Must(err error) {
 	if err != nil {
 		msg := formatWithCaller(err.Error(), 3)
+		log.Print(msg)
 		output(severeLog, levelFatal, msg)
 		os.Exit(1)
 	}
--- a/core/stat/internal/cpu_linux.go
+++ b/core/stat/internal/cpu_linux.go
@@ -22,19 +22,30 @@ var (
 	cores     uint64
 )

+// if /proc not present, ignore the cpu calcuation, like wsl linux
 func init() {
 	cpus, err := perCpuUsage()
-	logx.Must(err)
-	cores = uint64(len(cpus))
+	if err != nil {
+		logx.Error(err)
+		return
+	}

+	cores = uint64(len(cpus))
 	sets, err := cpuSets()
-	logx.Must(err)
+	if err != nil {
+		logx.Error(err)
+		return
+	}
+
 	quota = float64(len(sets))
 	cq, err := cpuQuota()
 	if err == nil {
 		if cq != -1 {
 			period, err := cpuPeriod()
-			logx.Must(err)
+			if err != nil {
+				logx.Error(err)
+				return
+			}

 			limit := float64(cq) / float64(period)
 			if limit < quota {
@@ -44,10 +55,16 @@ func init() {
 	}

 	preSystem, err = systemCpuUsage()
-	logx.Must(err)
+	if err != nil {
+		logx.Error(err)
+		return
+	}

 	preTotal, err = totalCpuUsage()
-	logx.Must(err)
+	if err != nil {
+		logx.Error(err)
+		return
+	}
 }

 func RefreshCpu() uint64 {
--- a/doc/goctl.md
+++ b/doc/goctl.md
@@ -195,6 +195,13 @@ ts需要指定webapi所在目录
 goctl api dart -api user/user.api -dir ./src
 ```

+## 根据mysql ddl或者datasource生成model文件
+
+```shell script
+$ goctl model mysql -src={filename} -dir={dir} -cache={true|false}
+```
+详情参考[model文档](https://github.com/tal-tech/go-zero/blob/master/tools/goctl/model/sql/README.MD)
+
 ## 根据定义好的简单go文件生成mongo代码文件(仅限golang使用)  
 ```shell
 goctl model mongo -src {{yourDir}}/xiao/service/xhb/user/model/usermodel.go -cache yes
@@ -218,7 +225,7 @@ type User struct {
     o是改字段需要生产的操作函数 可以取得get,find,set 分别表示生成返回单个对象的查询方法，返回多个对象的查询方法，设置该字段方法  
     生成的目标文件会覆盖该简单go文件  

-## goctl rpc生成
+## goctl rpc生成（业务剥离中，暂未开放）

  命令 `goctl rpc proto -proto ${proto} -service ${serviceName} -project ${projectName} -dir ${directory} -shared ${shared}`  
  如： `goctl rpc proto -proto test.proto  -service test -project xjy  -dir .`  
--- a/doc/images/architecture.png
+++ b/doc/images/architecture.png
--- a/doc/images/shorturl-api.png
+++ b/doc/images/shorturl-api.png
--- a/doc/images/shorturl-arch.png
+++ b/doc/images/shorturl-arch.png
--- a/doc/images/shorturl-benchmark.png
+++ b/doc/images/shorturl-benchmark.png
--- a/doc/images/shorturl-model.png
+++ b/doc/images/shorturl-model.png
--- a/doc/images/shorturl-rpc.png
+++ b/doc/images/shorturl-rpc.png
--- a/doc/keywords.md
+++ b/doc/keywords.md
@@ -10,23 +10,28 @@

 ## 2. 关键词替换

+支持关键词重叠，自动选用最长的关键词，代码示例如下：
+
 ```go
 replacer := stringx.NewReplacer(map[string]string{
-  "PHP": "PPT",
-  "世界上": "吹牛",
+  "日本":    "法国",
+  "日本的首都": "东京",
+  "东京":    "日本的首都",
 })
-fmt.Println(replacer.Replace("PHP是世界上最好的语言！"))
+fmt.Println(replacer.Replace("日本的首都是东京"))
 ```

 可以得到：
 ```
-PPT是吹牛最好的语言！
+东京是日本的首都
 ```

 示例代码见`example/stringx/replace/replace.go`

 ## 3. 查找敏感词

+代码示例如下：
+
 ```go
 filter := stringx.NewTrie([]string{
  "AV演员",
@@ -47,6 +52,8 @@ fmt.Println(keywords)

 ## 4. 敏感词过滤

+代码示例如下：
+
 ```go
 filter := stringx.NewTrie([]string{
  "AV演员",
--- a/doc/shorturl.md
+++ b/doc/shorturl.md
@@ -0,0 +1,528 @@
+# 快速构建高并发微服务
+
+## 0. 为什么说做好微服务很难？
+
+要想做好微服务，我们需要理解和掌握的知识点非常多，从几个维度上来说：
+
+* 基本功能层面
+  1. 并发控制&限流，避免服务被突发流量击垮
+  2. 服务注册与服务发现，确保能够动态侦测增减的节点
+  3. 负载均衡，需要根据节点承受能力分发流量
+  4. 超时控制，避免对已超时请求做无用功
+  5. 熔断设计，快速失败，保障故障节点的恢复能力
+
+* 高阶功能层面
+  1. 请求认证，确保每个用户只能访问自己的数据
+  2. 链路追踪，用于理解整个系统和快速定位特定请求的问题
+  3. 日志，用于数据收集和问题定位
+  4. 可观测性，没有度量就没有优化
+
+对于其中每一点，我们都需要用很长的篇幅来讲述其原理和实现，那么对我们后端开发者来说，要想把这些知识点都掌握并落实到业务系统里，难度是非常大的，不过我们可以依赖已经被大流量验证过的框架体系。[go-zero微服务框架](https://github.com/tal-tech/go-zero)就是为此而生。
+
+另外，我们始终秉承**工具大于约定和文档**的理念。我们希望尽可能减少开发人员的心智负担，把精力都投入到产生业务价值的代码上，减少重复代码的编写，所以我们开发了`goctl`工具。
+
+下面我通过短链微服务来演示通过[go-zero](https://github.com/tal-tech/go-zero)快速的创建微服务的流程，走完一遍，你就会发现：原来编写微服务如此简单！
+
+## 1. 什么是短链服务？
+
+短链服务就是将长的URL网址，通过程序计算等方式，转换为简短的网址字符串。
+
+写此短链服务是为了从整体上演示go-zero构建完整微服务的过程，算法和实现细节尽可能简化了，所以这不是一个高阶的短链服务。
+
+## 2. 短链微服务架构图
+
+<img src="images/shorturl-arch.png" alt="架构图" width="800" />
+
+* 这里只用了`Transform RPC`一个微服务，并不是说API Gateway只能调用一个微服务，只是为了最简演示API Gateway如何调用RPC微服务而已
+* 在真正项目里要尽可能每个微服务使用自己的数据库，数据边界要清晰
+
+## 3. goctl各层代码生成一览
+
+所有绿色背景的功能模块是自动生成的，按需激活，红色模块是需要自己写的，也就是增加下依赖，编写业务特有逻辑，各层示意图分别如下：
+
+* API Gateway
+
+  <img src="images/shorturl-api.png" alt="api" width="800" />
+
+* RPC
+
+  <img src="images/shorturl-rpc.png" alt="架构图" width="800" />
+
+* model
+
+  <img src="images/shorturl-model.png" alt="model" width="800" />
+
+下面我们来一起完整走一遍快速构建微服务的流程，Let’s `Go`!🏃‍♂️
+
+## 4. 准备工作
+
+* 安装etcd, mysql, redis
+
+* 安装goctl工具
+
+  ```shell
+  GO111MODULE=on GOPROXY=https://goproxy.cn/,direct go get github.com/tal-tech/go-zero/tools/goctl
+  ```
+
+* 创建工作目录`shorturl`
+
+* 在`shorturl`目录下执行`go mod init shorturl`初始化`go.mod`
+
+## 5. 编写API Gateway代码
+
+* 通过goctl生成`api/shorturl.api`并编辑，为了简洁，去除了文件开头的`info`，代码如下：
+
+  ```go
+  type (
+  	expandReq struct {
+  		shorten string `form:"shorten"`
+  	}
+  
+  	expandResp struct {
+  		url string `json:"url"`
+  	}
+  )
+  
+  type (
+  	shortenReq struct {
+  		url string `form:"url"`
+  	}
+  
+  	shortenResp struct {
+  		shorten string `json:"shorten"`
+  	}
+  )
+  
+  service shorturl-api {
+  	@server(
+  		handler: ShortenHandler
+  	)
+  	get /shorten(shortenReq) returns(shortenResp)
+  
+  	@server(
+  		handler: ExpandHandler
+  	)
+  	get /expand(expandReq) returns(expandResp)
+  }
+  ```
+
+  type用法和go一致，service用来定义get/post/head/delete等api请求，解释如下：
+
+  * `service shorturl-api {`这一行定义了service名字
+  * `@server`部分用来定义server端用到的属性
+  * `handler`定义了服务端handler名字
+  * `get /shorten(shortenReq) returns(shortenResp)`定义了get方法的路由、请求参数、返回参数等
+
+* 使用goctl生成API Gateway代码
+
+  ```shell
+  goctl api go -api shorturl.api -dir .
+  ```
+
+  生成的文件结构如下：
+
+  ```
+  .
+  ├── api
+  │   ├── etc
+  │   │   └── shorturl-api.yaml         // 配置文件
+  │   ├── internal
+  │   │   ├── config
+  │   │   │   └── config.go             // 定义配置
+  │   │   ├── handler
+  │   │   │   ├── expandhandler.go      // 实现expandHandler
+  │   │   │   ├── routes.go             // 定义路由处理
+  │   │   │   └── shortenhandler.go     // 实现shortenHandler
+  │   │   ├── logic
+  │   │   │   ├── expandlogic.go        // 实现ExpandLogic
+  │   │   │   └── shortenlogic.go       // 实现ShortenLogic
+  │   │   ├── svc
+  │   │   │   └── servicecontext.go     // 定义ServiceContext
+  │   │   └── types
+  │   │       └── types.go              // 定义请求、返回结构体
+  │   ├── shorturl.api
+  │   └── shorturl.go                   // main入口定义
+  ├── go.mod
+  └── go.sum
+  ```
+
+* 启动API Gateway服务，默认侦听在8888端口
+
+  ```shell
+  go run shorturl.go -f etc/shorturl-api.yaml
+  ```
+
+* 测试API Gateway服务
+
+  ```shell
+  curl -i "http://localhost:8888/shorten?url=http://www.xiaoheiban.cn"
+  ```
+
+  返回如下：
+
+  ```http
+  HTTP/1.1 200 OK
+  Content-Type: application/json
+  Date: Thu, 27 Aug 2020 14:31:39 GMT
+  Content-Length: 15
+  
+  {"shortUrl":""}
+  ```
+
+  可以看到我们API Gateway其实啥也没干，就返回了个空值，接下来我们会在rpc服务里实现业务逻辑
+
+* 可以修改`internal/svc/servicecontext.go`来传递服务依赖（如果需要）
+
+* 实现逻辑可以修改`internal/logic`下的对应文件
+
+* 可以通过`goctl`生成各种客户端语言的api调用代码
+
+* 到这里，你已经可以通过goctl生成客户端代码给客户端同学并行开发了，支持多种语言，详见文档
+
+## 6. 编写transform rpc服务
+
+* 在`rpc/transform`目录下编写`transform.proto`文件
+
+  可以通过命令生成proto文件模板
+
+  ```shell
+  goctl rpc template -o transform.proto
+  ```
+
+  修改后文件内容如下：
+
+  ```protobuf
+  syntax = "proto3";
+  
+  package transform;
+  
+  message expandReq {
+      string shorten = 1;
+  }
+  
+  message expandResp {
+      string url = 1;
+  }
+  
+  message shortenReq {
+      string url = 1;
+  }
+  
+  message shortenResp {
+      string shorten = 1;
+  }
+  
+  service transformer {
+      rpc expand(expandReq) returns(expandResp);
+      rpc shorten(shortenReq) returns(shortenResp);
+  }
+  ```
+
+* 用`goctl`生成rpc代码，在`rpc/transform`目录下执行命令
+
+  ```shell
+  goctl rpc proto -src transform.proto
+  ```
+
+  文件结构如下：
+
+  ```
+  rpc/transform
+  ├── etc
+  │   └── transform.yaml              // 配置文件
+  ├── internal
+  │   ├── config
+  │   │   └── config.go               // 配置定义
+  │   ├── logic
+  │   │   ├── expandlogic.go          // expand业务逻辑在这里实现
+  │   │   └── shortenlogic.go         // shorten业务逻辑在这里实现
+  │   ├── server
+  │   │   └── transformerserver.go    // 调用入口, 不需要修改
+  │   └── svc
+  │       └── servicecontext.go       // 定义ServiceContext，传递依赖
+  ├── pb
+  │   └── transform.pb.go
+  ├── transform.go                    // rpc服务main函数
+  ├── transform.proto
+  └── transformer
+      ├── transformer.go              // 提供了外部调用方法，无需修改
+      ├── transformer_mock.go         // mock方法，测试用
+      └── types.go                    // request/response结构体定义
+  ```
+
+  直接可以运行，如下：
+
+  ```shell
+  $ go run transform.go -f etc/transform.yaml
+  Starting rpc server at 127.0.0.1:8080...
+  ```
+
+  `etc/transform.yaml`文件里可以修改侦听端口等配置
+
+## 7. 修改API Gateway代码调用transform rpc服务
+
+* 修改配置文件`shorturl-api.yaml`，增加如下内容
+
+  ```yaml
+  Transform:
+    Etcd:
+      Hosts:
+        - localhost:2379
+      Key: transform.rpc
+  ```
+
+  通过etcd自动去发现可用的transform服务
+
+* 修改`internal/config/config.go`如下，增加transform服务依赖
+
+  ```go
+  type Config struct {
+  	rest.RestConf
+  	Transform rpcx.RpcClientConf     // 手动代码
+  }
+  ```
+
+* 修改`internal/svc/servicecontext.go`，如下：
+
+  ```go
+  type ServiceContext struct {
+  	Config    config.Config
+  	Transformer rpcx.Client                               // 手动代码
+  }
+  
+  func NewServiceContext(c config.Config) *ServiceContext {
+  	return &ServiceContext{
+  		Config:    c,
+  		Transformer: rpcx.MustNewClient(c.Transform),  // 手动代码
+  	}
+  }
+  ```
+
+  通过ServiceContext在不同业务逻辑之间传递依赖
+
+* 修改`internal/logic/expandlogic.go`里的`Expand`方法，如下：
+
+  ```go
+  func (l *ExpandLogic) Expand(req types.ExpandReq) (*types.ExpandResp, error) {
+    // 手动代码开始
+    trans := transformer.NewTransformer(l.svcCtx.Transformer)
+  	resp, err := trans.Expand(l.ctx, &transformer.ExpandReq{
+  		Shorten: req.Shorten,
+  	})
+  	if err != nil {
+  		return nil, err
+  	}
+  
+  	return &types.ExpandResp{
+  		Url: resp.Url,
+  	}, nil
+    // 手动代码结束
+  }
+  ```
+
+  通过调用`transformer`的`Expand`方法实现短链恢复到url
+
+* 修改`internal/logic/shortenlogic.go`，如下：
+
+  ```go
+  func (l *ShortenLogic) Shorten(req types.ShortenReq) (*types.ShortenResp, error) {
+    // 手动代码开始
+  	trans := transformer.NewTransformer(l.svcCtx.Transformer)
+  	resp, err := trans.Shorten(l.ctx, &transformer.ShortenReq{
+  		Url: req.Url,
+  	})
+  	if err != nil {
+  		return nil, err
+  	}
+  
+  	return &types.ShortenResp{
+  		Shorten: resp.Shorten,
+  	}, nil
+    // 手动代码结束
+  }
+  ```
+
+  通过调用`transformer`的`Shorten`方法实现url到短链的变换
+
+  至此，API Gateway修改完成，虽然贴的代码多，但是期中修改的是很少的一部分，为了方便理解上下文，我贴了完整代码，接下来处理CRUD+cache
+
+## 8. 定义数据库表结构，并生成CRUD+cache代码
+
+* shorturl下创建`rpc/transform/model`目录：`mkdir -p rpc/transform/model`
+
+* 在rpc/transform/model目录下编写创建shorturl表的sql文件`shorturl.sql`，如下：
+
+  ```sql
+  CREATE TABLE `shorturl`
+  (
+    `shorten` varchar(255) NOT NULL COMMENT 'shorten key',
+    `url` varchar(255) NOT NULL COMMENT 'original url',
+    PRIMARY KEY(`shorten`)
+  ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+  ```
+
+* 创建DB和table
+
+  ```sql
+  create database gozero;
+  ```
+
+  ```sql
+  source shorturl.sql;
+  ```
+
+* 在`rpc/transform/model`目录下执行如下命令生成CRUD+cache代码，`-c`表示使用`redis cache`
+
+  ```shell
+  goctl model mysql ddl -c -src shorturl.sql -dir .
+  ```
+
+  也可以用`datasource`命令代替`ddl`来指定数据库链接直接从schema生成
+
+  生成后的文件结构如下：
+
+  ```
+  rpc/transform/model
+  ├── shorturl.sql
+  ├── shorturlmodel.go              // CRUD+cache代码
+  └── vars.go                       // 定义常量和变量
+  ```
+
+## 9. 修改shorten/expand rpc代码调用crud+cache代码
+
+* 修改`rpc/transform/etc/transform.yaml`，增加如下内容：
+
+  ```yaml
+  DataSource: root:@tcp(localhost:3306)/gozero
+  Table: shorturl
+  Cache:
+    - Host: localhost:6379
+  ```
+
+  可以使用多个redis作为cache，支持redis单点或者redis集群
+
+* 修改`rpc/transform/internal/config.go`，如下：
+
+  ```go
+  type Config struct {
+  	rpcx.RpcServerConf
+  	DataSource string             // 手动代码
+  	Table      string             // 手动代码
+  	Cache      cache.CacheConf    // 手动代码
+  }
+  ```
+
+  增加了mysql和redis cache配置
+
+* 修改`rpc/transform/internal/svc/servicecontext.go`，如下：
+
+  ```go
+  type ServiceContext struct {
+  	c     config.Config
+    Model *model.ShorturlModel   // 手动代码
+  }
+  
+  func NewServiceContext(c config.Config) *ServiceContext {
+  	return &ServiceContext{
+  		c:             c,
+  		Model: model.NewShorturlModel(sqlx.NewMysql(c.DataSource), c.Cache, c.Table), // 手动代码
+  	}
+  }
+  ```
+
+* 修改`rpc/transform/internal/logic/expandlogic.go`，如下：
+
+  ```go
+  func (l *ExpandLogic) Expand(in *expand.ExpandReq) (*expand.ExpandResp, error) {
+  	// 手动代码开始
+  	res, err := l.svcCtx.Model.FindOne(in.Shorten)
+  	if err != nil {
+  		return nil, err
+  	}
+  
+  	return &transform.ExpandResp{
+  		Url: res.Url,
+  	}, nil
+  	// 手动代码结束
+  }
+  ```
+
+* 修改`rpc/shorten/internal/logic/shortenlogic.go`，如下：
+
+  ```go
+  func (l *ShortenLogic) Shorten(in *shorten.ShortenReq) (*shorten.ShortenResp, error) {
+    // 手动代码开始，生成短链接
+  	key := hash.Md5Hex([]byte(in.Url))[:6]
+  	_, err := l.svcCtx.Model.Insert(model.Shorturl{
+  		Shorten: key,
+  		Url:     in.Url,
+  	})
+  	if err != nil {
+  		return nil, err
+  	}
+  
+  	return &transform.ShortenResp{
+  		Shorten: key,
+  	}, nil
+    // 手动代码结束
+  }
+  ```
+
+  至此代码修改完成，凡事手动修改的代码我加了标注
+
+## 10. 完整调用演示
+
+* shorten api调用
+
+  ```shell
+  curl -i "http://localhost:8888/shorten?url=http://www.xiaoheiban.cn"
+  ```
+
+  返回如下：
+
+  ```http
+  HTTP/1.1 200 OK
+  Content-Type: application/json
+  Date: Sat, 29 Aug 2020 10:49:49 GMT
+  Content-Length: 21
+  
+  {"shorten":"f35b2a"}
+  ```
+
+* expand api调用
+
+  ```shell
+  curl -i "http://localhost:8888/expand?shorten=f35b2a"
+  ```
+
+  返回如下：
+
+  ```http
+  HTTP/1.1 200 OK
+  Content-Type: application/json
+  Date: Sat, 29 Aug 2020 10:51:53 GMT
+  Content-Length: 34
+  
+  {"url":"http://www.xiaoheiban.cn"}
+  ```
+
+## 11. Benchmark
+
+因为写入依赖于mysql的写入速度，就相当于压mysql了，所以压测只测试了expand接口，相当于从mysql里读取并利用缓存，shorten.lua里随机从db里获取了100个热key来生成压测请求
+
+![Benchmark](images/shorturl-benchmark.png)
+
+可以看出在我的MacBook Pro上能达到3万+的qps。
+
+## 12. 总结
+
+我们一直强调**工具大于约定和文档**。
+
+go-zero不只是一个框架，更是一个建立在框架+工具基础上的，简化和规范了整个微服务构建的技术体系。
+
+我们在保持简单的同时也尽可能把微服务治理的复杂度封装到了框架内部，极大的降低了开发人员的心智负担，使得业务开发得以快速推进。
+
+通过go-zero+goctl生成的代码，包含了微服务治理的各种组件，包括：并发控制、自适应熔断、自适应降载、自动缓存控制等，可以轻松部署以承载巨大访问量。
+
+有任何好的提升工程效率的想法，随时欢迎交流！👏
+
--- a/example/etcd/demo/Makefile
+++ b/example/etcd/demo/Makefile
@@ -1,13 +0,0 @@
-version := v$(shell /bin/date "+%y%m%d%H%M%S")
-
-build:
-	#docker pull alpine
-	#docker pull golang:alpine
-	cd $(GOPATH)/src/zero && docker build -t registry.cn-hangzhou.aliyuncs.com/xapp/etcdmon:$(version) . -f example/etcd/demo/Dockerfile
-	#docker image prune --filter label=stage=gobuilder -f
-
-push: build
-	docker push registry.cn-hangzhou.aliyuncs.com/xapp/etcdmon:$(version)
-
-deploy: push
-	kubectl -n xx-xiaoheiban set image deployment/etcdmon-deployment etcdmon=registry-vpc.cn-hangzhou.aliyuncs.com/xapp/etcdmon:$(version)
--- a/example/etcd/demo/etcdmon.yaml
+++ b/example/etcd/demo/etcdmon.yaml
@@ -1,15 +0,0 @@
-apiVersion: v1
-kind: Pod
-metadata:
-  name: etcdmon
-  namespace: discov
-spec:
-  containers:
-  - name: etcdmon
-    image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/etcdmon:v200620093045
-    imagePullPolicy: Always
-    env:
-    - name: ETCD_CLUSTER
-      value: etcd.discov:2379
-  imagePullSecrets:
-  - name: aliyun
--- a/example/etcd/pub/Makefile
+++ b/example/etcd/pub/Makefile
@@ -1,11 +0,0 @@
-version := v$(shell /bin/date "+%y%m%d%H%M%S")
-
-build:
-	cd $(GOPATH)/src/zero && docker build -t registry.cn-hangzhou.aliyuncs.com/xapp/pub:$(version) . -f example/etcd/pub/Dockerfile
-	docker image prune --filter label=stage=gobuilder -f
-
-push: build
-	docker push registry.cn-hangzhou.aliyuncs.com/xapp/pub:$(version)
-
-deploy: push
-	kubectl -n adhoc set image deployment/pub-deployment pub=registry-vpc.cn-hangzhou.aliyuncs.com/xapp/pub:$(version)
--- a/example/etcd/pub/pub.yaml
+++ b/example/etcd/pub/pub.yaml
@@ -1,26 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: pub-deployment
-  namespace: adhoc
-  labels:
-    app: pub
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: pub
-  template:
-    metadata:
-      labels:
-        app: pub
-    spec:
-      containers:
-      - name: pub
-        image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/pub:v200213172101
-        command:
-        - /app/pub
-        - -v
-        - ccc
-      imagePullSecrets:
-      - name: aliyun
--- a/example/etcd/sub/Makefile
+++ b/example/etcd/sub/Makefile
@@ -1,11 +0,0 @@
-version := v$(shell /bin/date "+%y%m%d%H%M%S")
-
-build:
-	cd $(GOPATH)/src/zero && docker build -t registry.cn-hangzhou.aliyuncs.com/xapp/sub:$(version) . -f example/etcd/sub/Dockerfile
-	docker image prune --filter label=stage=gobuilder -f
-
-push: build
-	docker push registry.cn-hangzhou.aliyuncs.com/xapp/sub:$(version)
-
-deploy: push
-	kubectl -n adhoc set image deployment/sub-deployment sub=registry-vpc.cn-hangzhou.aliyuncs.com/xapp/sub:$(version)
--- a/example/etcd/sub/sub.yaml
+++ b/example/etcd/sub/sub.yaml
@@ -1,16 +0,0 @@
-apiVersion: v1
-kind: Pod
-metadata:
-  labels:
-    app: sub
-  name: sub
-  namespace: adhoc
-spec:
-  containers:
-    - command:
-        - /app/sub
-      image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/sub:v200213220509
-      name: sub
-  imagePullSecrets:
-    - name: aliyun
-  restartPolicy: Always
--- a/example/graceful/dns/api/Makefile
+++ b/example/graceful/dns/api/Makefile
@@ -1,11 +0,0 @@
-version := v$(shell /bin/date "+%y%m%d%H%M%S")
-
-build:
-	docker pull alpine
-	cd $(GOPATH)/src/zero && docker build -t registry.cn-hangzhou.aliyuncs.com/xapp/graceful:$(version) . -f example/graceful/dns/api/Dockerfile
-
-push: build
-	docker push registry.cn-hangzhou.aliyuncs.com/xapp/graceful:$(version)
-
-deploy: push
-	kubectl -n kevin set image deployment/graceful-deployment graceful=registry-vpc.cn-hangzhou.aliyuncs.com/xapp/graceful:$(version)
--- a/example/graceful/dns/api/graceful.yaml
+++ b/example/graceful/dns/api/graceful.yaml
@@ -1,42 +0,0 @@
-apiVersion: v1
-kind: Service
-metadata:
-  name: graceful
-  namespace: kevin
-spec:
-  selector:
-    app: graceful
-  type: ClusterIP
-  ports:
-    - name: graceful-port
-      port: 3333
-      targetPort: 8888
-
---
-
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: graceful-deployment
-  namespace: kevin
-  labels:
-    app: graceful
-spec:
-  replicas: 3
-  selector:
-    matchLabels:
-      app: graceful
-  template:
-    metadata:
-      labels:
-        app: graceful
-    spec:
-      containers:
-        - name: graceful
-          image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/graceful:v191022133857
-          imagePullPolicy: Always
-          ports:
-            - containerPort: 8888
-      imagePullSecrets:
-        - name: aliyun
-
--- a/example/graceful/dns/rpc/Makefile
+++ b/example/graceful/dns/rpc/Makefile
@@ -1,11 +0,0 @@
-version := v$(shell /bin/date "+%y%m%d%H%M%S")
-
-build:
-	docker pull alpine
-	cd $(GOPATH)/src/zero && docker build -t registry.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:$(version) . -f example/graceful/dns/rpc/Dockerfile
-
-push: build
-	docker push registry.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:$(version)
-
-deploy: push
-	kubectl -n kevin set image deployment/gracefulrpc-deployment gracefulrpc=registry-vpc.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:$(version)
--- a/example/graceful/dns/rpc/gracefulrpc.yaml
+++ b/example/graceful/dns/rpc/gracefulrpc.yaml
@@ -1,46 +0,0 @@
-apiVersion: v1
-kind: Service
-metadata:
-  name: gracefulrpc
-  namespace: kevin
-spec:
-  selector:
-    app: gracefulrpc
-  type: ClusterIP
-  clusterIP: None
-  ports:
-    - name: gracefulrpc-port
-      port: 3456
-
---
-
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: gracefulrpc-deployment
-  namespace: kevin
-  labels:
-    app: gracefulrpc
-spec:
-  replicas: 3
-  selector:
-    matchLabels:
-      app: gracefulrpc
-  template:
-    metadata:
-      labels:
-        app: gracefulrpc
-    spec:
-      containers:
-        - name: gracefulrpc
-          image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:v191022143425
-          imagePullPolicy: Always
-          ports:
-            - containerPort: 3456
-          env:
-            - name: POD_IP
-              valueFrom:
-                fieldRef:
-                  fieldPath: status.podIP
-      imagePullSecrets:
-        - name: aliyun
--- a/example/graceful/etcd/api/Makefile
+++ b/example/graceful/etcd/api/Makefile
@@ -1,13 +0,0 @@
-version := v$(shell /bin/date "+%y%m%d%H%M%S")
-
-build:
-	docker pull alpine
-	docker pull golang:alpine
-	cd $(GOPATH)/src/zero && docker build -t registry.cn-hangzhou.aliyuncs.com/xapp/graceful:$(version) . -f example/graceful/etcd/api/Dockerfile
-	docker image prune --filter label=stage=gobuilder -f
-
-push: build
-	docker push registry.cn-hangzhou.aliyuncs.com/xapp/graceful:$(version)
-
-deploy: push
-	kubectl -n kevin set image deployment/graceful-deployment graceful=registry-vpc.cn-hangzhou.aliyuncs.com/xapp/graceful:$(version)
--- a/example/graceful/etcd/api/graceful.yaml
+++ b/example/graceful/etcd/api/graceful.yaml
@@ -1,42 +0,0 @@
-apiVersion: v1
-kind: Service
-metadata:
-  name: graceful
-  namespace: kevin
-spec:
-  selector:
-    app: graceful
-  type: ClusterIP
-  ports:
-    - name: graceful-port
-      port: 3333
-      targetPort: 8888
-
---
-
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: graceful-deployment
-  namespace: kevin
-  labels:
-    app: graceful
-spec:
-  replicas: 3
-  selector:
-    matchLabels:
-      app: graceful
-  template:
-    metadata:
-      labels:
-        app: graceful
-    spec:
-      containers:
-        - name: graceful
-          image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/graceful:v191031145905
-          imagePullPolicy: Always
-          ports:
-            - containerPort: 8888
-      imagePullSecrets:
-        - name: aliyun
-
--- a/example/graceful/etcd/rpc/Makefile
+++ b/example/graceful/etcd/rpc/Makefile
@@ -1,13 +0,0 @@
-version := v$(shell /bin/date "+%y%m%d%H%M%S")
-
-build:
-	docker pull alpine
-	docker pull golang:alpine
-	cd $(GOPATH)/src/zero && docker build -t registry.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:$(version) . -f example/graceful/etcd/rpc/Dockerfile
-	docker image prune --filter label=stage=gobuilder -f
-
-push: build
-	docker push registry.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:$(version)
-
-deploy: push
-	kubectl -n kevin set image deployment/gracefulrpc-deployment gracefulrpc=registry-vpc.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:$(version)
--- a/example/graceful/etcd/rpc/gracefulrpc-env.yaml
+++ b/example/graceful/etcd/rpc/gracefulrpc-env.yaml
@@ -1,30 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: gracefulrpc-deployment
-  namespace: kevin
-  labels:
-    app: gracefulrpc
-spec:
-  replicas: 9
-  selector:
-    matchLabels:
-      app: gracefulrpc
-  template:
-    metadata:
-      labels:
-        app: gracefulrpc
-    spec:
-      containers:
-        - name: gracefulrpc
-          image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:v191031144304
-          imagePullPolicy: Always
-          ports:
-            - containerPort: 3456
-          env:
-            - name: POD_IP
-              valueFrom:
-                fieldRef:
-                  fieldPath: status.podIP
-      imagePullSecrets:
-        - name: aliyun
--- a/example/graceful/etcd/rpc/gracefulrpc-headless.yaml
+++ b/example/graceful/etcd/rpc/gracefulrpc-headless.yaml
@@ -1,41 +0,0 @@
- apiVersion: v1
- kind: Service
- metadata:
-   name: gracefulrpc
-   namespace: kevin
- spec:
-   selector:
-     app: gracefulrpc
-   type: ClusterIP
-   clusterIP: None
-   ports:
-     - name: gracefulrpc-port
-       port: 3456
-
- ---
-
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: gracefulrpc-deployment
-  namespace: kevin
-  labels:
-    app: gracefulrpc
-spec:
-  replicas: 9
-  selector:
-    matchLabels:
-      app: gracefulrpc
-  template:
-    metadata:
-      labels:
-        app: gracefulrpc
-    spec:
-      containers:
-        - name: gracefulrpc
-          image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:v191031144304
-          imagePullPolicy: Always
-          ports:
-            - containerPort: 3456
-      imagePullSecrets:
-        - name: aliyun
--- a/example/graceful/etcd/rpc/gracefulrpc.yaml
+++ b/example/graceful/etcd/rpc/gracefulrpc.yaml
@@ -1,25 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: gracefulrpc-deployment
-  namespace: kevin
-  labels:
-    app: gracefulrpc
-spec:
-  replicas: 9
-  selector:
-    matchLabels:
-      app: gracefulrpc
-  template:
-    metadata:
-      labels:
-        app: gracefulrpc
-    spec:
-      containers:
-        - name: gracefulrpc
-          image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:v191031144304
-          imagePullPolicy: Always
-          ports:
-            - containerPort: 3456
-      imagePullSecrets:
-        - name: aliyun
--- a/example/load/simulate/cpu/Makefile
+++ b/example/load/simulate/cpu/Makefile
@@ -1,13 +0,0 @@
-version := v1
-
-build:
-	cd $(GOPATH)/src/zero && docker build -t registry.cn-hangzhou.aliyuncs.com/xapp/shedding:$(version) . -f example/load/simulate/cpu/Dockerfile
-
-push: build
-	docker push registry.cn-hangzhou.aliyuncs.com/xapp/shedding:$(version)
-
-deploy: push
-	kubectl apply -f shedding.yaml
-
-clean:
-	kubectl delete -f shedding.yaml
--- a/example/load/simulate/cpu/shedding.yaml
+++ b/example/load/simulate/cpu/shedding.yaml
@@ -1,17 +0,0 @@
-apiVersion: v1
-kind: Pod
-metadata:
-  name: shedding
-  namespace: adhoc
-spec:
-  containers:
-    - name: shedding
-      image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/shedding:v1
-      imagePullPolicy: Always
-      resources:
-        requests:
-          cpu: 1000m
-        limits:
-          cpu: 1000m
-  imagePullSecrets:
-    - name: aliyun
--- a/example/rpc/client/direct/Makefile
+++ b/example/rpc/client/direct/Makefile
@@ -1,10 +0,0 @@
-version := v$(shell /bin/date "+%y%m%d%H%M%S")
-
-build:
-	cd $(GOPATH)/src/zero && docker build -t registry.cn-hangzhou.aliyuncs.com/xapp/unarydirect:$(version) . -f example/rpc/client/direct/Dockerfile
-
-push: build
-	docker push registry.cn-hangzhou.aliyuncs.com/xapp/unarydirect:$(version)
-
-deploy: push
-	kubectl -n adhoc set image deployment/unarydirect-deployment unarydirect=registry-vpc.cn-hangzhou.aliyuncs.com/xapp/unarydirect:$(version)
--- a/example/rpc/client/direct/unarydirect.yaml
+++ b/example/rpc/client/direct/unarydirect.yaml
@@ -1,23 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: unarydirect-deployment
-  namespace: adhoc
-  labels:
-    app: unarydirect
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: unarydirect
-  template:
-    metadata:
-      labels:
-        app: unarydirect
-    spec:
-      containers:
-        - name: unarydirect
-          image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/unarydirect:v1
-          imagePullPolicy: Always
-      imagePullSecrets:
-        - name: aliyun
--- a/example/rpc/proxy/proxy.go
+++ b/example/rpc/proxy/proxy.go
@@ -42,7 +42,7 @@ func main() {
 		ListenOn: *listen,
 	}, func(grpcServer *grpc.Server) {
 		unary.RegisterGreeterServer(grpcServer, &GreetServer{
-			RpcProxy: rpcx.NewRpcProxy(*server),
+			RpcProxy: rpcx.NewProxy(*server),
 		})
 	})
 	proxy.Start()
--- a/example/rpc/proxy/unaryproxy.yaml
+++ b/example/rpc/proxy/unaryproxy.yaml
@@ -1,46 +0,0 @@
-apiVersion: v1
-kind: Service
-metadata:
-  name: unaryproxy
-  namespace: kevin
-spec:
-  selector:
-    app: unaryproxy
-  ports:
-    - name: unaryproxy-port
-      port: 3456
-
---
-
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: unaryproxy-deployment
-  namespace: kevin
-  labels:
-    app: unaryproxy
-spec:
-  replicas: 3
-  selector:
-    matchLabels:
-      app: unaryproxy
-  template:
-    metadata:
-      labels:
-        app: unaryproxy
-    spec:
-      containers:
-        - name: unaryproxy
-          image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/unaryproxy:v1
-          imagePullPolicy: Always
-          ports:
-            - containerPort: 3456
-          volumeMounts:
-            - name: timezone
-              mountPath: /etc/localtime
-      imagePullSecrets:
-        - name: aliyun
-      volumes:
-        - name: timezone
-          hostPath:
-            path: /usr/share/zoneinfo/Asia/Shanghai
--- a/example/rpc/server/unary/Makefile
+++ b/example/rpc/server/unary/Makefile
@@ -1,11 +0,0 @@
-version := v1
-
-build:
-	cd $(GOPATH)/src/zero && docker build -t registry.cn-hangzhou.aliyuncs.com/xapp/unaryserver:$(version) . -f example/rpc/server/unary/Dockerfile
-	docker image prune --filter label=stage=gobuilder -f
-
-push: build
-	docker push registry.cn-hangzhou.aliyuncs.com/xapp/unaryserver:$(version)
-
-deploy: push
-	kubectl -n adhoc set image deployment/unaryserver-deployment unaryserver=registry-vpc.cn-hangzhou.aliyuncs.com/xapp/unaryserver:$(version)
--- a/example/rpc/server/unary/unaryserver.yaml
+++ b/example/rpc/server/unary/unaryserver.yaml
@@ -1,25 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: unaryserver-deployment
-  namespace: adhoc
-  labels:
-    app: unaryserver
-spec:
-  replicas: 3
-  selector:
-    matchLabels:
-      app: unaryserver
-  template:
-    metadata:
-      labels:
-        app: unaryserver
-    spec:
-      containers:
-      - name: unaryserver
-        image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/unaryserver:v1
-        imagePullPolicy: Always
-        ports:
-        - containerPort: 3456
-      imagePullSecrets:
-        - name: aliyun
--- a/example/shorturl/api/etc/shorturl-api.yaml
+++ b/example/shorturl/api/etc/shorturl-api.yaml
@@ -0,0 +1,3 @@
+Name: shorturl-api
+Host: 0.0.0.0
+Port: 8888
--- a/example/shorturl/api/internal/config/config.go
+++ b/example/shorturl/api/internal/config/config.go
@@ -0,0 +1,7 @@
+package config
+
+import "github.com/tal-tech/go-zero/rest"
+
+type Config struct {
+	rest.RestConf
+}
--- a/example/shorturl/api/internal/handler/expandhandler.go
+++ b/example/shorturl/api/internal/handler/expandhandler.go
@@ -0,0 +1,29 @@
+package handler
+
+import (
+	"net/http"
+
+	"shorturl/api/internal/logic"
+	"shorturl/api/internal/svc"
+	"shorturl/api/internal/types"
+
+	"github.com/tal-tech/go-zero/rest/httpx"
+)
+
+func expandHandler(ctx *svc.ServiceContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req types.ExpandReq
+		if err := httpx.Parse(r, &req); err != nil {
+			httpx.Error(w, err)
+			return
+		}
+
+		l := logic.NewExpandLogic(r.Context(), ctx)
+		resp, err := l.Expand(req)
+		if err != nil {
+			httpx.Error(w, err)
+		} else {
+			httpx.WriteJson(w, http.StatusOK, resp)
+		}
+	}
+}
--- a/example/shorturl/api/internal/handler/routes.go
+++ b/example/shorturl/api/internal/handler/routes.go
@@ -0,0 +1,25 @@
+// DO NOT EDIT, generated by goctl
+package handler
+
+import (
+	"net/http"
+
+	"shorturl/api/internal/svc"
+
+	"github.com/tal-tech/go-zero/rest"
+)
+
+func RegisterHandlers(engine *rest.Server, serverCtx *svc.ServiceContext) {
+	engine.AddRoutes([]rest.Route{
+		{
+			Method:  http.MethodGet,
+			Path:    "/shorten",
+			Handler: shortenHandler(serverCtx),
+		},
+		{
+			Method:  http.MethodGet,
+			Path:    "/expand",
+			Handler: expandHandler(serverCtx),
+		},
+	})
+}
--- a/example/shorturl/api/internal/handler/shortenhandler.go
+++ b/example/shorturl/api/internal/handler/shortenhandler.go
@@ -0,0 +1,29 @@
+package handler
+
+import (
+	"net/http"
+
+	"shorturl/api/internal/logic"
+	"shorturl/api/internal/svc"
+	"shorturl/api/internal/types"
+
+	"github.com/tal-tech/go-zero/rest/httpx"
+)
+
+func shortenHandler(ctx *svc.ServiceContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req types.ShortenReq
+		if err := httpx.Parse(r, &req); err != nil {
+			httpx.Error(w, err)
+			return
+		}
+
+		l := logic.NewShortenLogic(r.Context(), ctx)
+		resp, err := l.Shorten(req)
+		if err != nil {
+			httpx.Error(w, err)
+		} else {
+			httpx.WriteJson(w, http.StatusOK, resp)
+		}
+	}
+}
--- a/example/shorturl/api/internal/logic/expandlogic.go
+++ b/example/shorturl/api/internal/logic/expandlogic.go
@@ -0,0 +1,28 @@
+package logic
+
+import (
+	"context"
+
+	"shorturl/api/internal/svc"
+	"shorturl/api/internal/types"
+
+	"github.com/tal-tech/go-zero/core/logx"
+)
+
+type ExpandLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewExpandLogic(ctx context.Context, svcCtx *svc.ServiceContext) ExpandLogic {
+	return ExpandLogic{
+		Logger: logx.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *ExpandLogic) Expand(req types.ExpandReq) (*types.ExpandResp, error) {
+	return &types.ExpandResp{}, nil
+}
--- a/example/shorturl/api/internal/logic/shortenlogic.go
+++ b/example/shorturl/api/internal/logic/shortenlogic.go
@@ -0,0 +1,28 @@
+package logic
+
+import (
+	"context"
+
+	"shorturl/api/internal/svc"
+	"shorturl/api/internal/types"
+
+	"github.com/tal-tech/go-zero/core/logx"
+)
+
+type ShortenLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewShortenLogic(ctx context.Context, svcCtx *svc.ServiceContext) ShortenLogic {
+	return ShortenLogic{
+		Logger: logx.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *ShortenLogic) Shorten(req types.ShortenReq) (*types.ShortenResp, error) {
+	return &types.ShortenResp{}, nil
+}
--- a/example/shorturl/api/internal/svc/servicecontext.go
+++ b/example/shorturl/api/internal/svc/servicecontext.go
@@ -0,0 +1,11 @@
+package svc
+
+import "shorturl/api/internal/config"
+
+type ServiceContext struct {
+	Config config.Config
+}
+
+func NewServiceContext(c config.Config) *ServiceContext {
+	return &ServiceContext{Config: c}
+}
--- a/example/shorturl/api/internal/types/types.go
+++ b/example/shorturl/api/internal/types/types.go
@@ -0,0 +1,18 @@
+// DO NOT EDIT, generated by goctl
+package types
+
+type ExpandReq struct {
+	Shorten string `form:"shorten"`
+}
+
+type ExpandResp struct {
+	Url string `json:"url"`
+}
+
+type ShortenReq struct {
+	Url string `form:"url"`
+}
+
+type ShortenResp struct {
+	Shorten string `json:"shorten"`
+}
--- a/example/shorturl/api/shorturl.api
+++ b/example/shorturl/api/shorturl.api
@@ -0,0 +1,33 @@
+
+
+type (
+	expandReq struct {
+		shorten string `form:"shorten"`
+	}
+
+	expandResp struct {
+		url string `json:"url"`
+	}
+)
+
+type (
+	shortenReq struct {
+		url string `form:"url"`
+	}
+
+	shortenResp struct {
+		shorten string `json:"shorten"`
+	}
+)
+
+service shorturl-api {
+	@server(
+		handler: ShortenHandler
+	)
+	get /shorten(shortenReq) returns(shortenResp)
+
+	@server(
+		handler: ExpandHandler
+	)
+	get /expand(expandReq) returns(expandResp)
+}
--- a/example/shorturl/api/shorturl.go
+++ b/example/shorturl/api/shorturl.go
@@ -0,0 +1,28 @@
+package main
+
+import (
+	"flag"
+
+	"shorturl/api/internal/config"
+	"shorturl/api/internal/handler"
+	"shorturl/api/internal/svc"
+
+	"github.com/tal-tech/go-zero/core/conf"
+	"github.com/tal-tech/go-zero/rest"
+)
+
+var configFile = flag.String("f", "etc/shorturl-api.yaml", "the config file")
+
+func main() {
+	flag.Parse()
+
+	var c config.Config
+	conf.MustLoad(*configFile, &c)
+
+	ctx := svc.NewServiceContext(c)
+	server := rest.MustNewServer(c.RestConf)
+	defer server.Stop()
+
+	handler.RegisterHandlers(server, ctx)
+	server.Start()
+}
--- a/example/shorturl/go.mod
+++ b/example/shorturl/go.mod
@@ -0,0 +1,11 @@
+module shorturl
+
+go 1.15
+
+require (
+	github.com/golang/mock v1.4.3
+	github.com/golang/protobuf v1.4.2
+	github.com/tal-tech/go-zero v1.0.7
+	golang.org/x/net v0.0.0-20200707034311-ab3426394381
+	google.golang.org/grpc v1.29.1
+)
--- a/example/shorturl/go.sum
+++ b/example/shorturl/go.sum
@@ -0,0 +1,360 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
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--- a/example/shorturl/rpc/transform/etc/transform.yaml
+++ b/example/shorturl/rpc/transform/etc/transform.yaml
@@ -0,0 +1,12 @@
+Name: transform.rpc
+Log:
+  Mode: console
+ListenOn: 127.0.0.1:8081
+Etcd:
+  Hosts:
+  - 127.0.0.1:2379
+  Key: transform.rpc
+DataSource: root:@tcp(localhost:3306)/gozero
+Table: shorturl
+Cache:
+  - Host: localhost:6379
--- a/example/shorturl/rpc/transform/internal/config/config.go
+++ b/example/shorturl/rpc/transform/internal/config/config.go
@@ -0,0 +1,13 @@
+package config
+
+import (
+	"github.com/tal-tech/go-zero/core/stores/cache"
+	"github.com/tal-tech/go-zero/rpcx"
+)
+
+type Config struct {
+	rpcx.RpcServerConf
+	DataSource string
+	Table      string
+	Cache      cache.CacheConf
+}
--- a/example/shorturl/rpc/transform/internal/logic/expandlogic.go
+++ b/example/shorturl/rpc/transform/internal/logic/expandlogic.go
@@ -0,0 +1,35 @@
+package logic
+
+import (
+	"context"
+
+	"shorturl/rpc/transform/internal/svc"
+	transform "shorturl/rpc/transform/pb"
+
+	"github.com/tal-tech/go-zero/core/logx"
+)
+
+type ExpandLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewExpandLogic(ctx context.Context, svcCtx *svc.ServiceContext) *ExpandLogic {
+	return &ExpandLogic{
+		Logger: logx.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *ExpandLogic) Expand(in *transform.ExpandReq) (*transform.ExpandResp, error) {
+	res, err := l.svcCtx.Model.FindOne(in.Shorten)
+	if err != nil {
+		return nil, err
+	}
+
+	return &transform.ExpandResp{
+		Url: res.Url,
+	}, nil
+}
--- a/example/shorturl/rpc/transform/internal/logic/shortenlogic.go
+++ b/example/shorturl/rpc/transform/internal/logic/shortenlogic.go
@@ -0,0 +1,41 @@
+package logic
+
+import (
+	"context"
+
+	"shorturl/rpc/transform/internal/svc"
+	"shorturl/rpc/transform/model"
+	transform "shorturl/rpc/transform/pb"
+
+	"github.com/tal-tech/go-zero/core/hash"
+	"github.com/tal-tech/go-zero/core/logx"
+)
+
+type ShortenLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewShortenLogic(ctx context.Context, svcCtx *svc.ServiceContext) *ShortenLogic {
+	return &ShortenLogic{
+		Logger: logx.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *ShortenLogic) Shorten(in *transform.ShortenReq) (*transform.ShortenResp, error) {
+	key := hash.Md5Hex([]byte(in.Url))[:6]
+	_, err := l.svcCtx.Model.Insert(model.Shorturl{
+		Shorten: key,
+		Url:     in.Url,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return &transform.ShortenResp{
+		Shorten: key,
+	}, nil
+}
--- a/example/shorturl/rpc/transform/internal/server/transformerserver.go
+++ b/example/shorturl/rpc/transform/internal/server/transformerserver.go
@@ -0,0 +1,32 @@
+// Code generated by goctl. DO NOT EDIT!
+// Source: transform.proto
+
+package server
+
+import (
+	"context"
+
+	"shorturl/rpc/transform/internal/logic"
+	"shorturl/rpc/transform/internal/svc"
+	transform "shorturl/rpc/transform/pb"
+)
+
+type TransformerServer struct {
+	svcCtx *svc.ServiceContext
+}
+
+func NewTransformerServer(svcCtx *svc.ServiceContext) *TransformerServer {
+	return &TransformerServer{
+		svcCtx: svcCtx,
+	}
+}
+
+func (s *TransformerServer) Expand(ctx context.Context, in *transform.ExpandReq) (*transform.ExpandResp, error) {
+	l := logic.NewExpandLogic(ctx, s.svcCtx)
+	return l.Expand(in)
+}
+
+func (s *TransformerServer) Shorten(ctx context.Context, in *transform.ShortenReq) (*transform.ShortenResp, error) {
+	l := logic.NewShortenLogic(ctx, s.svcCtx)
+	return l.Shorten(in)
+}
--- a/example/shorturl/rpc/transform/internal/svc/servicecontext.go
+++ b/example/shorturl/rpc/transform/internal/svc/servicecontext.go
@@ -0,0 +1,20 @@
+package svc
+
+import (
+	"shorturl/rpc/transform/internal/config"
+	"shorturl/rpc/transform/model"
+
+	"github.com/tal-tech/go-zero/core/stores/sqlx"
+)
+
+type ServiceContext struct {
+	c     config.Config
+	Model *model.ShorturlModel
+}
+
+func NewServiceContext(c config.Config) *ServiceContext {
+	return &ServiceContext{
+		c:     c,
+		Model: model.NewShorturlModel(sqlx.NewMysql(c.DataSource), c.Cache, c.Table),
+	}
+}
--- a/example/shorturl/rpc/transform/model/shorturl.sql
+++ b/example/shorturl/rpc/transform/model/shorturl.sql
@@ -0,0 +1,6 @@
+CREATE TABLE `shorturl`
+(
+  `shorten` varchar(255) NOT NULL COMMENT 'shorten key',
+  `url` varchar(255) NOT NULL COMMENT 'original url',
+  PRIMARY KEY(`shorten`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
--- a/example/shorturl/rpc/transform/model/shorturlmodel.go
+++ b/example/shorturl/rpc/transform/model/shorturlmodel.go
@@ -0,0 +1,86 @@
+package model
+
+import (
+	"database/sql"
+	"fmt"
+	"strings"
+
+	"github.com/tal-tech/go-zero/core/stores/cache"
+	"github.com/tal-tech/go-zero/core/stores/sqlc"
+	"github.com/tal-tech/go-zero/core/stores/sqlx"
+	"github.com/tal-tech/go-zero/core/stringx"
+	"github.com/tal-tech/go-zero/tools/goctl/model/sql/builderx"
+)
+
+var (
+	shorturlFieldNames          = builderx.FieldNames(&Shorturl{})
+	shorturlRows                = strings.Join(shorturlFieldNames, ",")
+	shorturlRowsExpectAutoSet   = strings.Join(stringx.Remove(shorturlFieldNames, "create_time", "update_time"), ",")
+	shorturlRowsWithPlaceHolder = strings.Join(stringx.Remove(shorturlFieldNames, "shorten", "create_time", "update_time"), "=?,") + "=?"
+
+	cacheShorturlShortenPrefix = "cache#Shorturl#shorten#"
+)
+
+type (
+	ShorturlModel struct {
+		sqlc.CachedConn
+		table string
+	}
+
+	Shorturl struct {
+		Shorten string `db:"shorten"` // shorten key
+		Url     string `db:"url"`     // original url
+	}
+)
+
+func NewShorturlModel(conn sqlx.SqlConn, c cache.CacheConf, table string) *ShorturlModel {
+	return &ShorturlModel{
+		CachedConn: sqlc.NewConn(conn, c),
+		table:      table,
+	}
+}
+
+func (m *ShorturlModel) Insert(data Shorturl) (sql.Result, error) {
+	query := `insert into ` + m.table + ` (` + shorturlRowsExpectAutoSet + `) values (?, ?)`
+	return m.ExecNoCache(query, data.Shorten, data.Url)
+}
+
+func (m *ShorturlModel) FindOne(shorten string) (*Shorturl, error) {
+	shorturlShortenKey := fmt.Sprintf("%s%v", cacheShorturlShortenPrefix, shorten)
+	var resp Shorturl
+	err := m.QueryRow(&resp, shorturlShortenKey, func(conn sqlx.SqlConn, v interface{}) error {
+		query := `select ` + shorturlRows + ` from ` + m.table + ` where shorten = ? limit 1`
+		return conn.QueryRow(v, query, shorten)
+	})
+	switch err {
+	case nil:
+		return &resp, nil
+	case sqlc.ErrNotFound:
+		return nil, ErrNotFound
+	default:
+		return nil, err
+	}
+}
+
+func (m *ShorturlModel) Update(data Shorturl) error {
+	shorturlShortenKey := fmt.Sprintf("%s%v", cacheShorturlShortenPrefix, data.Shorten)
+	_, err := m.Exec(func(conn sqlx.SqlConn) (result sql.Result, err error) {
+		query := `update ` + m.table + ` set ` + shorturlRowsWithPlaceHolder + ` where shorten = ?`
+		return conn.Exec(query, data.Url, data.Shorten)
+	}, shorturlShortenKey)
+	return err
+}
+
+func (m *ShorturlModel) Delete(shorten string) error {
+	_, err := m.FindOne(shorten)
+	if err != nil {
+		return err
+	}
+
+	shorturlShortenKey := fmt.Sprintf("%s%v", cacheShorturlShortenPrefix, shorten)
+	_, err = m.Exec(func(conn sqlx.SqlConn) (result sql.Result, err error) {
+		query := `delete from ` + m.table + ` where shorten = ?`
+		return conn.Exec(query, shorten)
+	}, shorturlShortenKey)
+	return err
+}
--- a/example/shorturl/rpc/transform/model/vars.go
+++ b/example/shorturl/rpc/transform/model/vars.go
@@ -0,0 +1,5 @@
+package model
+
+import "github.com/tal-tech/go-zero/core/stores/sqlx"
+
+var ErrNotFound = sqlx.ErrNotFound
--- a/example/shorturl/rpc/transform/pb/transform.pb.go
+++ b/example/shorturl/rpc/transform/pb/transform.pb.go
@@ -0,0 +1,230 @@
+// Code generated by protoc-gen-go.
+// source: transform.proto
+// DO NOT EDIT!
+
+/*
+Package transform is a generated protocol buffer package.
+
+It is generated from these files:
+	transform.proto
+
+It has these top-level messages:
+	ExpandReq
+	ExpandResp
+	ShortenReq
+	ShortenResp
+*/
+package transform
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+import (
+	context "golang.org/x/net/context"
+	grpc "google.golang.org/grpc"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type ExpandReq struct {
+	Shorten string `protobuf:"bytes,1,opt,name=shorten" json:"shorten,omitempty"`
+}
+
+func (m *ExpandReq) Reset()                    { *m = ExpandReq{} }
+func (m *ExpandReq) String() string            { return proto.CompactTextString(m) }
+func (*ExpandReq) ProtoMessage()               {}
+func (*ExpandReq) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *ExpandReq) GetShorten() string {
+	if m != nil {
+		return m.Shorten
+	}
+	return ""
+}
+
+type ExpandResp struct {
+	Url string `protobuf:"bytes,1,opt,name=url" json:"url,omitempty"`
+}
+
+func (m *ExpandResp) Reset()                    { *m = ExpandResp{} }
+func (m *ExpandResp) String() string            { return proto.CompactTextString(m) }
+func (*ExpandResp) ProtoMessage()               {}
+func (*ExpandResp) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *ExpandResp) GetUrl() string {
+	if m != nil {
+		return m.Url
+	}
+	return ""
+}
+
+type ShortenReq struct {
+	Url string `protobuf:"bytes,1,opt,name=url" json:"url,omitempty"`
+}
+
+func (m *ShortenReq) Reset()                    { *m = ShortenReq{} }
+func (m *ShortenReq) String() string            { return proto.CompactTextString(m) }
+func (*ShortenReq) ProtoMessage()               {}
+func (*ShortenReq) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
+
+func (m *ShortenReq) GetUrl() string {
+	if m != nil {
+		return m.Url
+	}
+	return ""
+}
+
+type ShortenResp struct {
+	Shorten string `protobuf:"bytes,1,opt,name=shorten" json:"shorten,omitempty"`
+}
+
+func (m *ShortenResp) Reset()                    { *m = ShortenResp{} }
+func (m *ShortenResp) String() string            { return proto.CompactTextString(m) }
+func (*ShortenResp) ProtoMessage()               {}
+func (*ShortenResp) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
+
+func (m *ShortenResp) GetShorten() string {
+	if m != nil {
+		return m.Shorten
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*ExpandReq)(nil), "transform.expandReq")
+	proto.RegisterType((*ExpandResp)(nil), "transform.expandResp")
+	proto.RegisterType((*ShortenReq)(nil), "transform.shortenReq")
+	proto.RegisterType((*ShortenResp)(nil), "transform.shortenResp")
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConn
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+const _ = grpc.SupportPackageIsVersion4
+
+// Client API for Transformer service
+
+type TransformerClient interface {
+	Expand(ctx context.Context, in *ExpandReq, opts ...grpc.CallOption) (*ExpandResp, error)
+	Shorten(ctx context.Context, in *ShortenReq, opts ...grpc.CallOption) (*ShortenResp, error)
+}
+
+type transformerClient struct {
+	cc *grpc.ClientConn
+}
+
+func NewTransformerClient(cc *grpc.ClientConn) TransformerClient {
+	return &transformerClient{cc}
+}
+
+func (c *transformerClient) Expand(ctx context.Context, in *ExpandReq, opts ...grpc.CallOption) (*ExpandResp, error) {
+	out := new(ExpandResp)
+	err := grpc.Invoke(ctx, "/transform.transformer/expand", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *transformerClient) Shorten(ctx context.Context, in *ShortenReq, opts ...grpc.CallOption) (*ShortenResp, error) {
+	out := new(ShortenResp)
+	err := grpc.Invoke(ctx, "/transform.transformer/shorten", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// Server API for Transformer service
+
+type TransformerServer interface {
+	Expand(context.Context, *ExpandReq) (*ExpandResp, error)
+	Shorten(context.Context, *ShortenReq) (*ShortenResp, error)
+}
+
+func RegisterTransformerServer(s *grpc.Server, srv TransformerServer) {
+	s.RegisterService(&_Transformer_serviceDesc, srv)
+}
+
+func _Transformer_Expand_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ExpandReq)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(TransformerServer).Expand(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/transform.transformer/Expand",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(TransformerServer).Expand(ctx, req.(*ExpandReq))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Transformer_Shorten_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ShortenReq)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(TransformerServer).Shorten(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/transform.transformer/Shorten",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(TransformerServer).Shorten(ctx, req.(*ShortenReq))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+var _Transformer_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "transform.transformer",
+	HandlerType: (*TransformerServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "expand",
+			Handler:    _Transformer_Expand_Handler,
+		},
+		{
+			MethodName: "shorten",
+			Handler:    _Transformer_Shorten_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "transform.proto",
+}
+
+func init() { proto.RegisterFile("transform.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
+	// 163 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xe2, 0xe2, 0x2f, 0x29, 0x4a, 0xcc,
+	0x2b, 0x4e, 0xcb, 0x2f, 0xca, 0xd5, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0xe2, 0x84, 0x0b, 0x28,
+	0xa9, 0x72, 0x71, 0xa6, 0x56, 0x14, 0x24, 0xe6, 0xa5, 0x04, 0xa5, 0x16, 0x0a, 0x49, 0x70, 0xb1,
+	0x17, 0x67, 0xe4, 0x17, 0x95, 0xa4, 0xe6, 0x49, 0x30, 0x2a, 0x30, 0x6a, 0x70, 0x06, 0xc1, 0xb8,
+	0x4a, 0x72, 0x5c, 0x5c, 0x30, 0x65, 0xc5, 0x05, 0x42, 0x02, 0x5c, 0xcc, 0xa5, 0x45, 0x39, 0x50,
+	0x35, 0x20, 0x26, 0x48, 0x1e, 0xaa, 0x14, 0x64, 0x0e, 0xa6, 0xbc, 0x3a, 0x17, 0x37, 0x5c, 0xbe,
+	0xb8, 0x00, 0xb7, 0x45, 0x46, 0x75, 0x5c, 0xdc, 0x70, 0xc7, 0xa5, 0x16, 0x09, 0x99, 0x72, 0xb1,
+	0x41, 0xec, 0x15, 0x12, 0xd1, 0x43, 0xf8, 0x02, 0xee, 0x62, 0x29, 0x51, 0x2c, 0xa2, 0xc5, 0x05,
+	0x42, 0x16, 0x70, 0xf3, 0x85, 0x90, 0x55, 0x20, 0x9c, 0x28, 0x25, 0x86, 0x4d, 0xb8, 0xb8, 0x20,
+	0x89, 0x0d, 0x1c, 0x42, 0xc6, 0x80, 0x00, 0x00, 0x00, 0xff, 0xff, 0x8a, 0x27, 0x78, 0x05, 0x34,
+	0x01, 0x00, 0x00,
+}
--- a/example/shorturl/rpc/transform/transform.go
+++ b/example/shorturl/rpc/transform/transform.go
@@ -0,0 +1,40 @@
+// Code generated by goctl. DO NOT EDIT!
+// Source: transform.proto
+
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+
+	"shorturl/rpc/transform/internal/config"
+	"shorturl/rpc/transform/internal/server"
+	"shorturl/rpc/transform/internal/svc"
+	transform "shorturl/rpc/transform/pb"
+
+	"github.com/tal-tech/go-zero/core/conf"
+	"github.com/tal-tech/go-zero/rpcx"
+	"google.golang.org/grpc"
+)
+
+var configFile = flag.String("f", "etc/transform.yaml", "the config file")
+
+func main() {
+	flag.Parse()
+
+	var c config.Config
+	conf.MustLoad(*configFile, &c)
+	ctx := svc.NewServiceContext(c)
+	transformerSrv := server.NewTransformerServer(ctx)
+
+	s, err := rpcx.NewServer(c.RpcServerConf, func(grpcServer *grpc.Server) {
+		transform.RegisterTransformerServer(grpcServer, transformerSrv)
+	})
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Printf("Starting rpc server at %s...\n", c.ListenOn)
+	s.Start()
+}
--- a/example/shorturl/rpc/transform/transform.proto
+++ b/example/shorturl/rpc/transform/transform.proto
@@ -0,0 +1,24 @@
+syntax = "proto3";
+
+package transform;
+
+message expandReq {
+    string shorten = 1;
+}
+
+message expandResp {
+    string url = 1;
+}
+
+message shortenReq {
+    string url = 1;
+}
+
+message shortenResp {
+    string shorten = 1;
+}
+
+service transformer {
+    rpc expand(expandReq) returns(expandResp);
+    rpc shorten(shortenReq) returns(shortenResp);
+}
--- a/example/shorturl/rpc/transform/transformer/transformer.go
+++ b/example/shorturl/rpc/transform/transformer/transformer.go
@@ -0,0 +1,96 @@
+// Code generated by goctl. DO NOT EDIT!
+// Source: transform.proto
+
+//go:generate mockgen -destination ./transformer_mock.go -package transformer -source $GOFILE
+
+package transformer
+
+import (
+	"context"
+
+	transform "shorturl/rpc/transform/pb"
+
+	"github.com/tal-tech/go-zero/core/jsonx"
+	"github.com/tal-tech/go-zero/rpcx"
+)
+
+type (
+	Transformer interface {
+		Expand(ctx context.Context, in *ExpandReq) (*ExpandResp, error)
+		Shorten(ctx context.Context, in *ShortenReq) (*ShortenResp, error)
+	}
+
+	defaultTransformer struct {
+		cli rpcx.Client
+	}
+)
+
+func NewTransformer(cli rpcx.Client) Transformer {
+	return &defaultTransformer{
+		cli: cli,
+	}
+}
+
+func (m *defaultTransformer) Expand(ctx context.Context, in *ExpandReq) (*ExpandResp, error) {
+	var request transform.ExpandReq
+	bts, err := jsonx.Marshal(in)
+	if err != nil {
+		return nil, errJsonConvert
+	}
+
+	err = jsonx.Unmarshal(bts, &request)
+	if err != nil {
+		return nil, errJsonConvert
+	}
+
+	client := transform.NewTransformerClient(m.cli.Conn())
+	resp, err := client.Expand(ctx, &request)
+	if err != nil {
+		return nil, err
+	}
+
+	var ret ExpandResp
+	bts, err = jsonx.Marshal(resp)
+	if err != nil {
+		return nil, errJsonConvert
+	}
+
+	err = jsonx.Unmarshal(bts, &ret)
+	if err != nil {
+		return nil, errJsonConvert
+	}
+
+	return &ret, nil
+}
+
+func (m *defaultTransformer) Shorten(ctx context.Context, in *ShortenReq) (*ShortenResp, error) {
+	var request transform.ShortenReq
+	bts, err := jsonx.Marshal(in)
+	if err != nil {
+		return nil, errJsonConvert
+	}
+
+	err = jsonx.Unmarshal(bts, &request)
+	if err != nil {
+		return nil, errJsonConvert
+	}
+
+	client := transform.NewTransformerClient(m.cli.Conn())
+	resp, err := client.Shorten(ctx, &request)
+	if err != nil {
+		return nil, err
+	}
+
+	var ret ShortenResp
+	bts, err = jsonx.Marshal(resp)
+	if err != nil {
+		return nil, errJsonConvert
+	}
+
+	err = jsonx.Unmarshal(bts, &ret)
+	if err != nil {
+		return nil, errJsonConvert
+	}
+
+	return &ret, nil
+}
--- a/example/shorturl/rpc/transform/transformer/transformer_mock.go
+++ b/example/shorturl/rpc/transform/transformer/transformer_mock.go
@@ -0,0 +1,64 @@
+// Code generated by MockGen. DO NOT EDIT.
+// Source: transformer.go
+
+// Package transformer is a generated GoMock package.
+package transformer
+
+import (
+	context "context"
+	gomock "github.com/golang/mock/gomock"
+	reflect "reflect"
+)
+
+// MockTransformer is a mock of Transformer interface
+type MockTransformer struct {
+	ctrl     *gomock.Controller
+	recorder *MockTransformerMockRecorder
+}
+
+// MockTransformerMockRecorder is the mock recorder for MockTransformer
+type MockTransformerMockRecorder struct {
+	mock *MockTransformer
+}
+
+// NewMockTransformer creates a new mock instance
+func NewMockTransformer(ctrl *gomock.Controller) *MockTransformer {
+	mock := &MockTransformer{ctrl: ctrl}
+	mock.recorder = &MockTransformerMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use
+func (m *MockTransformer) EXPECT() *MockTransformerMockRecorder {
+	return m.recorder
+}
+
+// Expand mocks base method
+func (m *MockTransformer) Expand(ctx context.Context, in *ExpandReq) (*ExpandResp, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "Expand", ctx, in)
+	ret0, _ := ret[0].(*ExpandResp)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// Expand indicates an expected call of Expand
+func (mr *MockTransformerMockRecorder) Expand(ctx, in interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Expand", reflect.TypeOf((*MockTransformer)(nil).Expand), ctx, in)
+}
+
+// Shorten mocks base method
+func (m *MockTransformer) Shorten(ctx context.Context, in *ShortenReq) (*ShortenResp, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "Shorten", ctx, in)
+	ret0, _ := ret[0].(*ShortenResp)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// Shorten indicates an expected call of Shorten
+func (mr *MockTransformerMockRecorder) Shorten(ctx, in interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Shorten", reflect.TypeOf((*MockTransformer)(nil).Shorten), ctx, in)
+}
--- a/example/shorturl/rpc/transform/transformer/types.go
+++ b/example/shorturl/rpc/transform/transformer/types.go
@@ -0,0 +1,26 @@
+// Code generated by goctl. DO NOT EDIT!
+// Source: transform.proto
+
+package transformer
+
+import "errors"
+
+var errJsonConvert = errors.New("json convert error")
+
+type (
+	ExpandReq struct {
+		Shorten string `json:"shorten,omitempty"`
+	}
+
+	ExpandResp struct {
+		Url string `json:"url,omitempty"`
+	}
+
+	ShortenReq struct {
+		Url string `json:"url,omitempty"`
+	}
+
+	ShortenResp struct {
+		Shorten string `json:"shorten,omitempty"`
+	}
+)
--- a/example/stringx/replace/replace.go
+++ b/example/stringx/replace/replace.go
@@ -8,8 +8,9 @@ import (

 func main() {
 	replacer := stringx.NewReplacer(map[string]string{
-		"PHP": "PPT",
-		"世界上": "吹牛",
+		"日本":    "法国",
+		"日本的首都": "东京",
+		"东京":    "日本的首都",
 	})
-	fmt.Println(replacer.Replace("PHP是世界上最好的语言！"))
+	fmt.Println(replacer.Replace("日本的首都是东京"))
 }
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/tal-tech/go-zero

-go 1.14
+go 1.13

 require (
 	github.com/DATA-DOG/go-sqlmock v1.4.1
@@ -8,6 +8,7 @@ require (
 	github.com/alicebob/miniredis v2.5.0+incompatible
 	github.com/dchest/siphash v1.2.1
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible
+	github.com/dsymonds/gotoc v0.0.0-20160928043926-5aebcfc91819
 	github.com/fatih/color v1.9.0 // indirect
 	github.com/frankban/quicktest v1.7.2 // indirect
 	github.com/globalsign/mgo v0.0.0-20181015135952-eeefdecb41b8
@@ -55,7 +56,7 @@ require (
 	golang.org/x/tools v0.0.0-20200410132612-ae9902aceb98 // indirect
 	google.golang.org/genproto v0.0.0-20200729003335-053ba62fc06f // indirect
 	google.golang.org/grpc v1.29.1
-	google.golang.org/protobuf v1.25.0 // indirect
+	google.golang.org/protobuf v1.25.0
 	gopkg.in/cheggaaa/pb.v1 v1.0.28
 	gopkg.in/yaml.v2 v2.2.8
 	honnef.co/go/tools v0.0.1-2020.1.4 // indirect
--- a/go.sum
+++ b/go.sum
@@ -48,6 +48,8 @@ github.com/dchest/siphash v1.2.1 h1:4cLinnzVJDKxTCl9B01807Yiy+W7ZzVHj/KIroQRvT4=
 github.com/dchest/siphash v1.2.1/go.mod h1:q+IRvb2gOSrUnYoPqHiyHXS0FOBBOdl6tONBlVnOnt4=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
+github.com/dsymonds/gotoc v0.0.0-20160928043926-5aebcfc91819 h1:9778zj477h/VauD8kHbOtbytW2KGQefJ/wUGE5w+mzw=
+github.com/dsymonds/gotoc v0.0.0-20160928043926-5aebcfc91819/go.mod h1:MvzMVHq8BH2Ji/o8TGDocVA70byvLrAgFTxkEnmjO4Y=
 github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4 h1:qk/FSDDxo05wdJH28W+p5yivv7LuLYLRXPPD8KQCtZs=
 github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
--- a/readme.md
+++ b/readme.md
@@ -6,6 +6,23 @@
 [![Release](https://img.shields.io/github/v/release/tal-tech/go-zero.svg?style=flat-square)](https://github.com/tal-tech/go-zero)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)

+## 0. go-zero介绍
+
+go-zero是一个集成了各种工程实践的web和rpc框架。通过弹性设计保障了大并发服务端的稳定性，经受了充分的实战检验。
+
+go-zero 包含极简的 API 定义和生成工具 goctl，可以根据定义的 api 文件一键生成 Go, iOS, Android, Kotlin, Dart, TypeScript, JavaScript 代码，并可直接运行。
+
+使用go-zero的好处：
+
+* 轻松获得支撑千万日活服务的稳定性
+* 内建级联超时控制、限流、自适应熔断、自适应降载等微服务治理能力，无需配置和额外代码
+* 微服务治理中间件可无缝集成到其它现有框架使用
+* 极简的API描述，一键生成各端代码
+* 自动校验客户端请求参数合法性
+* 大量微服务治理和并发工具包
+
+<img src="doc/images/architecture.png" alt="架构图" width="1500" />
+
 ## 1. go-zero框架背景

 18年初，晓黑板后端在经过频繁的宕机后，决定从`Java+MongoDB`的单体架构迁移到微服务架构，经过仔细思考和对比，我们决定：
@@ -57,47 +74,38 @@ go-zero是一个集成了各种工程实践的包含web和rpc框架，有如下

 ![弹性设计](doc/images/resilience.jpg)

-## 4. go-zero框架收益
-
-* 保障大并发服务端的稳定性，经受了充分的实战检验
-* 极简的API定义
-* 一键生成Go, iOS, Android, Dart, TypeScript, JavaScript代码，并可直接运行
-* 服务端自动校验参数合法性
-
-## 5. go-zero近期开发计划
+## 4. go-zero近期开发计划

 * 自动生成API mock server，便于客户端开发
 * 自动生成服务端功能测试

-## 6. Installation
+## 5. Installation

-1. 在项目目录下通过如下命令安装：
+在项目目录下通过如下命令安装：
+
+```shell
+go get -u github.com/tal-tech/go-zero
+```
+
+## 6. Quick Start
+
+0. 完整示例请查看
+
+   [快速构建高并发微服务](doc/shorturl.md)
+
+1. 安装goctl工具

   ```shell
-   go get -u github.com/tal-tech/go-zero
+   export GO111MODULE=on export GOPROXY=https://goproxy.cn/,direct go get github.com/tal-tech/go-zero/tools/goctl
   ```

-2. 代码里导入go-zero
-
-   ```go
-   import "github.com/tal-tech/go-zero"
-   ```
-
-## 7. Quick Start
-
-1. 编译goctl工具
-
-   ```shell
-   go build tools/goctl/goctl.go
-   ```
-
-   把goctl放到$PATH的目录下，确保goctl可执行
+   确保goctl可执行

 2. 定义API文件，比如greet.api，可以在vs code里安装`goctl`插件，支持api语法

   ```go
   type Request struct {
-     Name string `path:"name"`
+     Name string `path:"name,options=you|me"` // 框架自动验证请求参数是否合法
   }
   
   type Response struct {
@@ -129,7 +137,7 @@ go-zero是一个集成了各种工程实践的包含web和rpc框架，有如下
   ```
   ├── greet
   │   ├── etc
-   │   │   └── greet-api.json        // 配置文件
+   │   │   └── greet-api.yaml        // 配置文件
   │   ├── greet.go                  // main文件
   │   └── internal
   │       ├── config
@@ -146,18 +154,24 @@ go-zero是一个集成了各种工程实践的包含web和rpc框架，有如下
   └── greet.api                     // api描述文件
   ```
   生成的代码可以直接运行：
-   
+
 ```shell
   cd greet
-   go run greet.go -f etc/greet-api.json
+   go run greet.go -f etc/greet-api.yaml
 ```

 默认侦听在8888端口（可以在配置文件里修改），可以通过curl请求：

 ```shell
-   ➜  go-zero git:(master) curl -w "\ncode: %{http_code}\n" http://localhost:8888/greet/from/kevin
-   {"code":0}
-   code: 200
+curl -i http://localhost:8888/greet/from/you
+```
+
+返回如下：
+
+```http
+HTTP/1.1 200 OK
+Date: Sun, 30 Aug 2020 15:32:35 GMT
+Content-Length: 0
 ```

 编写业务代码：
@@ -173,17 +187,18 @@ go-zero是一个集成了各种工程实践的包含web和rpc框架，有如下
   ...
   ```

-## 8. Benchmark
+## 7. Benchmark

 ![benchmark](doc/images/benchmark.png)

 [测试代码见这里](https://github.com/smallnest/go-web-framework-benchmark)

-## 9. 文档
+## 8. 文档 (逐步完善中)

+* [快速构建高并发微服务](doc/shorturl.md)
 * [goctl使用帮助](doc/goctl.md)
 * [关键字替换和敏感词过滤工具](doc/keywords.md)

-## 10. 微信交流群
+## 9. 微信交流群

 添加我的微信：kevwan，请注明go-zero，我拉进go-zero社区群🤝
--- a/rest/engine.go
+++ b/rest/engine.go
@@ -209,6 +209,6 @@ func (s *engine) use(middleware Middleware) {

 func convertMiddleware(ware Middleware) func(http.Handler) http.Handler {
 	return func(next http.Handler) http.Handler {
-		return http.HandlerFunc(ware(next.ServeHTTP))
+		return ware(next.ServeHTTP)
 	}
 }
--- a/rest/httpx/responses_test.go
+++ b/rest/httpx/responses_test.go
@@ -1,6 +1,7 @@
 package httpx

 import (
+	"errors"
 	"net/http"
 	"strings"
 	"testing"
@@ -17,6 +18,24 @@ func init() {
 	logx.Disable()
 }

+func TestError(t *testing.T) {
+	const body = "foo"
+	w := tracedResponseWriter{
+		headers: make(map[string][]string),
+	}
+	Error(&w, errors.New(body))
+	assert.Equal(t, http.StatusBadRequest, w.code)
+	assert.Equal(t, body, strings.TrimSpace(w.builder.String()))
+}
+
+func TestOk(t *testing.T) {
+	w := tracedResponseWriter{
+		headers: make(map[string][]string),
+	}
+	Ok(&w)
+	assert.Equal(t, http.StatusOK, w.code)
+}
+
 func TestOkJson(t *testing.T) {
 	w := tracedResponseWriter{
 		headers: make(map[string][]string),
--- a/rpcx/client_test.go
+++ b/rpcx/client_test.go
@@ -0,0 +1,101 @@
+package rpcx
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"net"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/logx"
+	"github.com/tal-tech/go-zero/rpcx/internal/mock"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	"google.golang.org/grpc/test/bufconn"
+)
+
+func init() {
+	logx.Disable()
+}
+
+func dialer() func(context.Context, string) (net.Conn, error) {
+	listener := bufconn.Listen(1024 * 1024)
+	server := grpc.NewServer()
+	mock.RegisterDepositServiceServer(server, &mock.DepositServer{})
+
+	go func() {
+		if err := server.Serve(listener); err != nil {
+			log.Fatal(err)
+		}
+	}()
+
+	return func(context.Context, string) (net.Conn, error) {
+		return listener.Dial()
+	}
+}
+
+func TestDepositServer_Deposit(t *testing.T) {
+	tests := []struct {
+		name    string
+		amount  float32
+		res     *mock.DepositResponse
+		errCode codes.Code
+		errMsg  string
+	}{
+		{
+			"invalid request with negative amount",
+			-1.11,
+			nil,
+			codes.InvalidArgument,
+			fmt.Sprintf("cannot deposit %v", -1.11),
+		},
+		{
+			"valid request with non negative amount",
+			0.00,
+			&mock.DepositResponse{Ok: true},
+			codes.OK,
+			"",
+		},
+	}
+
+	directClient := MustNewClient(RpcClientConf{
+		Endpoints: []string{"foo"},
+		App:       "foo",
+		Token:     "bar",
+		Timeout:   1000,
+	}, WithDialOption(grpc.WithInsecure()), WithDialOption(grpc.WithContextDialer(dialer())))
+	targetClient, err := NewClientWithTarget("foo", WithDialOption(grpc.WithInsecure()),
+		WithDialOption(grpc.WithContextDialer(dialer())))
+	assert.Nil(t, err)
+	clients := []Client{
+		directClient,
+		targetClient,
+	}
+	for _, tt := range tests {
+		for _, client := range clients {
+			t.Run(tt.name, func(t *testing.T) {
+				cli := mock.NewDepositServiceClient(client.Conn())
+				request := &mock.DepositRequest{Amount: tt.amount}
+				response, err := cli.Deposit(context.Background(), request)
+				if response != nil {
+					assert.True(t, len(response.String()) > 0)
+					if response.GetOk() != tt.res.GetOk() {
+						t.Error("response: expected", tt.res.GetOk(), "received", response.GetOk())
+					}
+				}
+				if err != nil {
+					if e, ok := status.FromError(err); ok {
+						if e.Code() != tt.errCode {
+							t.Error("error code: expected", codes.InvalidArgument, "received", e.Code())
+						}
+						if e.Message() != tt.errMsg {
+							t.Error("error message: expected", tt.errMsg, "received", e.Message())
+						}
+					}
+				}
+			})
+		}
+	}
+}
--- a/rpcx/config_test.go
+++ b/rpcx/config_test.go
@@ -0,0 +1,42 @@
+package rpcx
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/discov"
+	"github.com/tal-tech/go-zero/core/service"
+	"github.com/tal-tech/go-zero/core/stores/redis"
+)
+
+func TestRpcClientConf(t *testing.T) {
+	conf := NewDirectClientConf([]string{"localhost:1234"}, "foo", "bar")
+	assert.True(t, conf.HasCredential())
+	conf = NewEtcdClientConf([]string{"localhost:1234", "localhost:5678"}, "key", "foo", "bar")
+	assert.True(t, conf.HasCredential())
+}
+
+func TestRpcServerConf(t *testing.T) {
+	conf := RpcServerConf{
+		ServiceConf: service.ServiceConf{},
+		ListenOn:    "",
+		Etcd: discov.EtcdConf{
+			Hosts: []string{"localhost:1234"},
+			Key:   "key",
+		},
+		Auth: true,
+		Redis: redis.RedisKeyConf{
+			RedisConf: redis.RedisConf{
+				Type: redis.NodeType,
+			},
+			Key: "foo",
+		},
+		StrictControl: false,
+		Timeout:       0,
+		CpuThreshold:  0,
+	}
+	assert.True(t, conf.HasEtcd())
+	assert.NotNil(t, conf.Validate())
+	conf.Redis.Host = "localhost:5678"
+	assert.Nil(t, conf.Validate())
+}
--- a/rpcx/internal/auth/credential_test.go
+++ b/rpcx/internal/auth/credential_test.go
@@ -0,0 +1,62 @@
+package auth
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"google.golang.org/grpc/metadata"
+)
+
+func TestParseCredential(t *testing.T) {
+	tests := []struct {
+		name        string
+		withNil     bool
+		withEmptyMd bool
+		app         string
+		token       string
+	}{
+		{
+			name:    "nil",
+			withNil: true,
+		},
+		{
+			name:        "empty md",
+			withEmptyMd: true,
+		},
+		{
+			name: "empty",
+		},
+		{
+			name:  "valid",
+			app:   "foo",
+			token: "bar",
+		},
+	}
+
+	for _, test := range tests {
+		test := test
+		t.Run(test.name, func(t *testing.T) {
+			t.Parallel()
+
+			var ctx context.Context
+			if test.withNil {
+				ctx = context.Background()
+			} else if test.withEmptyMd {
+				ctx = metadata.NewIncomingContext(context.Background(), metadata.MD{})
+			} else {
+				md := metadata.New(map[string]string{
+					"app":   test.app,
+					"token": test.token,
+				})
+				ctx = metadata.NewIncomingContext(context.Background(), md)
+			}
+			cred := ParseCredential(ctx)
+			assert.False(t, cred.RequireTransportSecurity())
+			m, err := cred.GetRequestMetadata(context.Background())
+			assert.Nil(t, err)
+			assert.Equal(t, test.app, m[appKey])
+			assert.Equal(t, test.token, m[tokenKey])
+		})
+	}
+}
--- a/rpcx/internal/balancer/p2c/p2c_test.go
+++ b/rpcx/internal/balancer/p2c/p2c_test.go
@@ -3,7 +3,9 @@ package p2c
 import (
 	"context"
 	"fmt"
+	"runtime"
 	"strconv"
+	"sync"
 	"testing"

 	"github.com/stretchr/testify/assert"
@@ -33,19 +35,31 @@ func TestP2cPicker_Pick(t *testing.T) {
 	tests := []struct {
 		name       string
 		candidates int
+		threshold  float64
 	}{
 		{
 			name:       "single",
 			candidates: 1,
+			threshold:  0.9,
+		},
+		{
+			name:       "two",
+			candidates: 2,
+			threshold:  0.5,
 		},
 		{
 			name:       "multiple",
 			candidates: 100,
+			threshold:  0.95,
 		},
 	}

 	for _, test := range tests {
+		test := test
 		t.Run(test.name, func(t *testing.T) {
+			t.Parallel()
+
+			const total = 10000
 			builder := new(p2cPickerBuilder)
 			ready := make(map[resolver.Address]balancer.SubConn)
 			for i := 0; i < test.candidates; i++ {
@@ -55,7 +69,9 @@ func TestP2cPicker_Pick(t *testing.T) {
 			}

 			picker := builder.Build(ready)
-			for i := 0; i < 10000; i++ {
+			var wg sync.WaitGroup
+			wg.Add(total)
+			for i := 0; i < total; i++ {
 				_, done, err := picker.Pick(context.Background(), balancer.PickInfo{
 					FullMethodName: "/",
 					Ctx:            context.Background(),
@@ -64,11 +80,16 @@ func TestP2cPicker_Pick(t *testing.T) {
 				if i%100 == 0 {
 					err = status.Error(codes.DeadlineExceeded, "deadline")
 				}
-				done(balancer.DoneInfo{
-					Err: err,
-				})
+				go func() {
+					runtime.Gosched()
+					done(balancer.DoneInfo{
+						Err: err,
+					})
+					wg.Done()
+				}()
 			}

+			wg.Wait()
 			dist := make(map[interface{}]int)
 			conns := picker.(*p2cPicker).conns
 			for _, conn := range conns {
@@ -76,7 +97,8 @@ func TestP2cPicker_Pick(t *testing.T) {
 			}

 			entropy := mathx.CalcEntropy(dist)
-			assert.True(t, entropy > .95, fmt.Sprintf("entropy is %f, less than .95", entropy))
+			assert.True(t, entropy > test.threshold, fmt.Sprintf("entropy is %f, less than %f",
+				entropy, test.threshold))
 		})
 	}
 }
--- a/rpcx/internal/chainclientinterceptors_test.go
+++ b/rpcx/internal/chainclientinterceptors_test.go
@@ -0,0 +1,123 @@
+package internal
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"google.golang.org/grpc"
+)
+
+func TestWithStreamClientInterceptors(t *testing.T) {
+	opts := WithStreamClientInterceptors()
+	assert.NotNil(t, opts)
+}
+
+func TestWithUnaryClientInterceptors(t *testing.T) {
+	opts := WithUnaryClientInterceptors()
+	assert.NotNil(t, opts)
+}
+
+func TestChainStreamClientInterceptors_zero(t *testing.T) {
+	var vals []int
+	interceptors := chainStreamClientInterceptors()
+	_, err := interceptors(context.Background(), nil, new(grpc.ClientConn), "/foo",
+		func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string,
+			opts ...grpc.CallOption) (grpc.ClientStream, error) {
+			vals = append(vals, 1)
+			return nil, nil
+		})
+	assert.Nil(t, err)
+	assert.ElementsMatch(t, []int{1}, vals)
+}
+
+func TestChainStreamClientInterceptors_one(t *testing.T) {
+	var vals []int
+	interceptors := chainStreamClientInterceptors(func(ctx context.Context, desc *grpc.StreamDesc,
+		cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (
+		grpc.ClientStream, error) {
+		vals = append(vals, 1)
+		return streamer(ctx, desc, cc, method, opts...)
+	})
+	_, err := interceptors(context.Background(), nil, new(grpc.ClientConn), "/foo",
+		func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string,
+			opts ...grpc.CallOption) (grpc.ClientStream, error) {
+			vals = append(vals, 2)
+			return nil, nil
+		})
+	assert.Nil(t, err)
+	assert.ElementsMatch(t, []int{1, 2}, vals)
+}
+
+func TestChainStreamClientInterceptors_more(t *testing.T) {
+	var vals []int
+	interceptors := chainStreamClientInterceptors(func(ctx context.Context, desc *grpc.StreamDesc,
+		cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (
+		grpc.ClientStream, error) {
+		vals = append(vals, 1)
+		return streamer(ctx, desc, cc, method, opts...)
+	}, func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string,
+		streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
+		vals = append(vals, 2)
+		return streamer(ctx, desc, cc, method, opts...)
+	})
+	_, err := interceptors(context.Background(), nil, new(grpc.ClientConn), "/foo",
+		func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string,
+			opts ...grpc.CallOption) (grpc.ClientStream, error) {
+			vals = append(vals, 3)
+			return nil, nil
+		})
+	assert.Nil(t, err)
+	assert.ElementsMatch(t, []int{1, 2, 3}, vals)
+}
+
+func TestWithUnaryClientInterceptors_zero(t *testing.T) {
+	var vals []int
+	interceptors := chainUnaryClientInterceptors()
+	err := interceptors(context.Background(), "/foo", nil, nil, new(grpc.ClientConn),
+		func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn,
+			opts ...grpc.CallOption) error {
+			vals = append(vals, 1)
+			return nil
+		})
+	assert.Nil(t, err)
+	assert.ElementsMatch(t, []int{1}, vals)
+}
+
+func TestWithUnaryClientInterceptors_one(t *testing.T) {
+	var vals []int
+	interceptors := chainUnaryClientInterceptors(func(ctx context.Context, method string, req,
+		reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
+		vals = append(vals, 1)
+		return invoker(ctx, method, req, reply, cc, opts...)
+	})
+	err := interceptors(context.Background(), "/foo", nil, nil, new(grpc.ClientConn),
+		func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn,
+			opts ...grpc.CallOption) error {
+			vals = append(vals, 2)
+			return nil
+		})
+	assert.Nil(t, err)
+	assert.ElementsMatch(t, []int{1, 2}, vals)
+}
+
+func TestWithUnaryClientInterceptors_more(t *testing.T) {
+	var vals []int
+	interceptors := chainUnaryClientInterceptors(func(ctx context.Context, method string, req,
+		reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
+		vals = append(vals, 1)
+		return invoker(ctx, method, req, reply, cc, opts...)
+	}, func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn,
+		invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
+		vals = append(vals, 2)
+		return invoker(ctx, method, req, reply, cc, opts...)
+	})
+	err := interceptors(context.Background(), "/foo", nil, nil, new(grpc.ClientConn),
+		func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn,
+			opts ...grpc.CallOption) error {
+			vals = append(vals, 3)
+			return nil
+		})
+	assert.Nil(t, err)
+	assert.ElementsMatch(t, []int{1, 2, 3}, vals)
+}
--- a/rpcx/internal/chainserverinterceptors_test.go
+++ b/rpcx/internal/chainserverinterceptors_test.go
@@ -0,0 +1,111 @@
+package internal
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"google.golang.org/grpc"
+)
+
+func TestWithStreamServerInterceptors(t *testing.T) {
+	opts := WithStreamServerInterceptors()
+	assert.NotNil(t, opts)
+}
+
+func TestWithUnaryServerInterceptors(t *testing.T) {
+	opts := WithUnaryServerInterceptors()
+	assert.NotNil(t, opts)
+}
+
+func TestChainStreamServerInterceptors_zero(t *testing.T) {
+	var vals []int
+	interceptors := chainStreamServerInterceptors()
+	err := interceptors(nil, nil, nil, func(srv interface{}, stream grpc.ServerStream) error {
+		vals = append(vals, 1)
+		return nil
+	})
+	assert.Nil(t, err)
+	assert.ElementsMatch(t, []int{1}, vals)
+}
+
+func TestChainStreamServerInterceptors_one(t *testing.T) {
+	var vals []int
+	interceptors := chainStreamServerInterceptors(func(srv interface{}, ss grpc.ServerStream,
+		info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
+		vals = append(vals, 1)
+		return handler(srv, ss)
+	})
+	err := interceptors(nil, nil, nil, func(srv interface{}, stream grpc.ServerStream) error {
+		vals = append(vals, 2)
+		return nil
+	})
+	assert.Nil(t, err)
+	assert.ElementsMatch(t, []int{1, 2}, vals)
+}
+
+func TestChainStreamServerInterceptors_more(t *testing.T) {
+	var vals []int
+	interceptors := chainStreamServerInterceptors(func(srv interface{}, ss grpc.ServerStream,
+		info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
+		vals = append(vals, 1)
+		return handler(srv, ss)
+	}, func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
+		vals = append(vals, 2)
+		return handler(srv, ss)
+	})
+	err := interceptors(nil, nil, nil, func(srv interface{}, stream grpc.ServerStream) error {
+		vals = append(vals, 3)
+		return nil
+	})
+	assert.Nil(t, err)
+	assert.ElementsMatch(t, []int{1, 2, 3}, vals)
+}
+
+func TestChainUnaryServerInterceptors_zero(t *testing.T) {
+	var vals []int
+	interceptors := chainUnaryServerInterceptors()
+	_, err := interceptors(context.Background(), nil, nil,
+		func(ctx context.Context, req interface{}) (interface{}, error) {
+			vals = append(vals, 1)
+			return nil, nil
+		})
+	assert.Nil(t, err)
+	assert.ElementsMatch(t, []int{1}, vals)
+}
+
+func TestChainUnaryServerInterceptors_one(t *testing.T) {
+	var vals []int
+	interceptors := chainUnaryServerInterceptors(func(ctx context.Context, req interface{},
+		info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (resp interface{}, err error) {
+		vals = append(vals, 1)
+		return handler(ctx, req)
+	})
+	_, err := interceptors(context.Background(), nil, nil,
+		func(ctx context.Context, req interface{}) (interface{}, error) {
+			vals = append(vals, 2)
+			return nil, nil
+		})
+	assert.Nil(t, err)
+	assert.ElementsMatch(t, []int{1, 2}, vals)
+}
+
+func TestChainUnaryServerInterceptors_more(t *testing.T) {
+	var vals []int
+	interceptors := chainUnaryServerInterceptors(func(ctx context.Context, req interface{},
+		info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (resp interface{}, err error) {
+		vals = append(vals, 1)
+		return handler(ctx, req)
+	}, func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo,
+		handler grpc.UnaryHandler) (resp interface{}, err error) {
+		vals = append(vals, 2)
+		return handler(ctx, req)
+	})
+	_, err := interceptors(context.Background(), nil, nil,
+		func(ctx context.Context, req interface{}) (interface{}, error) {
+			vals = append(vals, 3)
+			return nil, nil
+		})
+	assert.Nil(t, err)
+	assert.ElementsMatch(t, []int{1, 2, 3}, vals)
+}
--- a/rpcx/internal/client_test.go
+++ b/rpcx/internal/client_test.go
@@ -0,0 +1,30 @@
+package internal
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"google.golang.org/grpc"
+)
+
+func TestWithDialOption(t *testing.T) {
+	var options ClientOptions
+	agent := grpc.WithUserAgent("chrome")
+	opt := WithDialOption(agent)
+	opt(&options)
+	assert.Contains(t, options.DialOptions, agent)
+}
+
+func TestWithTimeout(t *testing.T) {
+	var options ClientOptions
+	opt := WithTimeout(time.Second)
+	opt(&options)
+	assert.Equal(t, time.Second, options.Timeout)
+}
+
+func TestBuildDialOptions(t *testing.T) {
+	agent := grpc.WithUserAgent("chrome")
+	opts := buildDialOptions(WithDialOption(agent))
+	assert.Contains(t, opts, agent)
+}
--- a/rpcx/internal/clientinterceptors/breakerinterceptor_test.go
+++ b/rpcx/internal/clientinterceptors/breakerinterceptor_test.go
@@ -1,12 +1,15 @@
 package clientinterceptors

 import (
+	"context"
+	"errors"
 	"testing"

 	"github.com/stretchr/testify/assert"
 	"github.com/tal-tech/go-zero/core/breaker"
 	"github.com/tal-tech/go-zero/core/stat"
 	rcodes "github.com/tal-tech/go-zero/rpcx/internal/codes"
+	"google.golang.org/grpc"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 )
@@ -49,3 +52,30 @@ func TestBreakerInterceptorDeadlineExceeded(t *testing.T) {
 	assert.True(t, errs[err] > 0)
 	assert.True(t, errs[breaker.ErrServiceUnavailable] > 0)
 }
+
+func TestBreakerInterceptor(t *testing.T) {
+	tests := []struct {
+		name string
+		err  error
+	}{
+		{
+			name: "nil",
+			err:  nil,
+		},
+		{
+			name: "with error",
+			err:  errors.New("mock"),
+		},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			cc := new(grpc.ClientConn)
+			err := BreakerInterceptor(context.Background(), "/foo", nil, nil, cc,
+				func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn,
+					opts ...grpc.CallOption) error {
+					return test.err
+				})
+			assert.Equal(t, test.err, err)
+		})
+	}
+}
--- a/rpcx/internal/clientinterceptors/durationinterceptor_test.go
+++ b/rpcx/internal/clientinterceptors/durationinterceptor_test.go
@@ -0,0 +1,37 @@
+package clientinterceptors
+
+import (
+	"context"
+	"errors"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"google.golang.org/grpc"
+)
+
+func TestDurationInterceptor(t *testing.T) {
+	tests := []struct {
+		name string
+		err  error
+	}{
+		{
+			name: "nil",
+			err:  nil,
+		},
+		{
+			name: "with error",
+			err:  errors.New("mock"),
+		},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			cc := new(grpc.ClientConn)
+			err := DurationInterceptor(context.Background(), "/foo", nil, nil, cc,
+				func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn,
+					opts ...grpc.CallOption) error {
+					return test.err
+				})
+			assert.Equal(t, test.err, err)
+		})
+	}
+}
--- a/rpcx/internal/clientinterceptors/prommetricinterceptor_test.go
+++ b/rpcx/internal/clientinterceptors/prommetricinterceptor_test.go
@@ -0,0 +1,37 @@
+package clientinterceptors
+
+import (
+	"context"
+	"errors"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"google.golang.org/grpc"
+)
+
+func TestPromMetricInterceptor(t *testing.T) {
+	tests := []struct {
+		name string
+		err  error
+	}{
+		{
+			name: "nil",
+			err:  nil,
+		},
+		{
+			name: "with error",
+			err:  errors.New("mock"),
+		},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			cc := new(grpc.ClientConn)
+			err := PromMetricInterceptor(context.Background(), "/foo", nil, nil, cc,
+				func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn,
+					opts ...grpc.CallOption) error {
+					return test.err
+				})
+			assert.Equal(t, test.err, err)
+		})
+	}
+}
--- a/rpcx/internal/clientinterceptors/timeoutinterceptor_test.go
+++ b/rpcx/internal/clientinterceptors/timeoutinterceptor_test.go
@@ -0,0 +1,50 @@
+package clientinterceptors
+
+import (
+	"context"
+	"strconv"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"google.golang.org/grpc"
+)
+
+func TestTimeoutInterceptor(t *testing.T) {
+	timeouts := []time.Duration{0, time.Millisecond * 10}
+	for _, timeout := range timeouts {
+		t.Run(strconv.FormatInt(int64(timeout), 10), func(t *testing.T) {
+			interceptor := TimeoutInterceptor(timeout)
+			cc := new(grpc.ClientConn)
+			err := interceptor(context.Background(), "/foo", nil, nil, cc,
+				func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn,
+					opts ...grpc.CallOption) error {
+					return nil
+				},
+			)
+			assert.Nil(t, err)
+		})
+	}
+}
+
+func TestTimeoutInterceptor_timeout(t *testing.T) {
+	const timeout = time.Millisecond * 10
+	interceptor := TimeoutInterceptor(timeout)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
+	defer cancel()
+	var wg sync.WaitGroup
+	wg.Add(1)
+	cc := new(grpc.ClientConn)
+	err := interceptor(ctx, "/foo", nil, nil, cc,
+		func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn,
+			opts ...grpc.CallOption) error {
+			defer wg.Done()
+			tm, ok := ctx.Deadline()
+			assert.True(t, ok)
+			assert.True(t, tm.Before(time.Now().Add(timeout+time.Millisecond)))
+			return nil
+		})
+	wg.Wait()
+	assert.Nil(t, err)
+}
--- a/rpcx/internal/clientinterceptors/tracinginterceptor_test.go
+++ b/rpcx/internal/clientinterceptors/tracinginterceptor_test.go
@@ -0,0 +1,53 @@
+package clientinterceptors
+
+import (
+	"context"
+	"sync"
+	"sync/atomic"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/trace"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/metadata"
+)
+
+func TestTracingInterceptor(t *testing.T) {
+	var run int32
+	var wg sync.WaitGroup
+	wg.Add(1)
+	cc := new(grpc.ClientConn)
+	err := TracingInterceptor(context.Background(), "/foo", nil, nil, cc,
+		func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn,
+			opts ...grpc.CallOption) error {
+			defer wg.Done()
+			atomic.AddInt32(&run, 1)
+			return nil
+		})
+	wg.Wait()
+	assert.Nil(t, err)
+	assert.Equal(t, int32(1), atomic.LoadInt32(&run))
+}
+
+func TestTracingInterceptor_GrpcFormat(t *testing.T) {
+	var run int32
+	var wg sync.WaitGroup
+	wg.Add(1)
+	md := metadata.New(map[string]string{
+		"foo": "bar",
+	})
+	carrier, err := trace.Inject(trace.GrpcFormat, md)
+	assert.Nil(t, err)
+	ctx, _ := trace.StartServerSpan(context.Background(), carrier, "user", "/foo")
+	cc := new(grpc.ClientConn)
+	err = TracingInterceptor(ctx, "/foo", nil, nil, cc,
+		func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn,
+			opts ...grpc.CallOption) error {
+			defer wg.Done()
+			atomic.AddInt32(&run, 1)
+			return nil
+		})
+	wg.Wait()
+	assert.Nil(t, err)
+	assert.Equal(t, int32(1), atomic.LoadInt32(&run))
+}
--- a/rpcx/internal/mock/deposit.pb.go
+++ b/rpcx/internal/mock/deposit.pb.go
@@ -0,0 +1,159 @@
+// Code generated by protoc-gen-go.
+// source: deposit.proto
+// DO NOT EDIT!
+
+/*
+Package mock is a generated protocol buffer package.
+
+It is generated from these files:
+	deposit.proto
+
+It has these top-level messages:
+	DepositRequest
+	DepositResponse
+*/
+package mock
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+import (
+	context "golang.org/x/net/context"
+	grpc "google.golang.org/grpc"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type DepositRequest struct {
+	Amount float32 `protobuf:"fixed32,1,opt,name=amount" json:"amount,omitempty"`
+}
+
+func (m *DepositRequest) Reset()                    { *m = DepositRequest{} }
+func (m *DepositRequest) String() string            { return proto.CompactTextString(m) }
+func (*DepositRequest) ProtoMessage()               {}
+func (*DepositRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *DepositRequest) GetAmount() float32 {
+	if m != nil {
+		return m.Amount
+	}
+	return 0
+}
+
+type DepositResponse struct {
+	Ok bool `protobuf:"varint,1,opt,name=ok" json:"ok,omitempty"`
+}
+
+func (m *DepositResponse) Reset()                    { *m = DepositResponse{} }
+func (m *DepositResponse) String() string            { return proto.CompactTextString(m) }
+func (*DepositResponse) ProtoMessage()               {}
+func (*DepositResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *DepositResponse) GetOk() bool {
+	if m != nil {
+		return m.Ok
+	}
+	return false
+}
+
+func init() {
+	proto.RegisterType((*DepositRequest)(nil), "mock.DepositRequest")
+	proto.RegisterType((*DepositResponse)(nil), "mock.DepositResponse")
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConn
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+const _ = grpc.SupportPackageIsVersion4
+
+// Client API for DepositService service
+
+type DepositServiceClient interface {
+	Deposit(ctx context.Context, in *DepositRequest, opts ...grpc.CallOption) (*DepositResponse, error)
+}
+
+type depositServiceClient struct {
+	cc *grpc.ClientConn
+}
+
+func NewDepositServiceClient(cc *grpc.ClientConn) DepositServiceClient {
+	return &depositServiceClient{cc}
+}
+
+func (c *depositServiceClient) Deposit(ctx context.Context, in *DepositRequest, opts ...grpc.CallOption) (*DepositResponse, error) {
+	out := new(DepositResponse)
+	err := grpc.Invoke(ctx, "/mock.DepositService/Deposit", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// Server API for DepositService service
+
+type DepositServiceServer interface {
+	Deposit(context.Context, *DepositRequest) (*DepositResponse, error)
+}
+
+func RegisterDepositServiceServer(s *grpc.Server, srv DepositServiceServer) {
+	s.RegisterService(&_DepositService_serviceDesc, srv)
+}
+
+func _DepositService_Deposit_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(DepositRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(DepositServiceServer).Deposit(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/mock.DepositService/Deposit",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(DepositServiceServer).Deposit(ctx, req.(*DepositRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+var _DepositService_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "mock.DepositService",
+	HandlerType: (*DepositServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Deposit",
+			Handler:    _DepositService_Deposit_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "deposit.proto",
+}
+
+func init() { proto.RegisterFile("deposit.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
+	// 139 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xe2, 0xe2, 0x4d, 0x49, 0x2d, 0xc8,
+	0x2f, 0xce, 0x2c, 0xd1, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x62, 0xc9, 0xcd, 0x4f, 0xce, 0x56,
+	0xd2, 0xe0, 0xe2, 0x73, 0x81, 0x08, 0x07, 0xa5, 0x16, 0x96, 0xa6, 0x16, 0x97, 0x08, 0x89, 0x71,
+	0xb1, 0x25, 0xe6, 0xe6, 0x97, 0xe6, 0x95, 0x48, 0x30, 0x2a, 0x30, 0x6a, 0x30, 0x05, 0x41, 0x79,
+	0x4a, 0x8a, 0x5c, 0xfc, 0x70, 0x95, 0xc5, 0x05, 0xf9, 0x79, 0xc5, 0xa9, 0x42, 0x7c, 0x5c, 0x4c,
+	0xf9, 0xd9, 0x60, 0x65, 0x1c, 0x41, 0x4c, 0xf9, 0xd9, 0x46, 0x1e, 0x70, 0xc3, 0x82, 0x53, 0x8b,
+	0xca, 0x32, 0x93, 0x53, 0x85, 0xcc, 0xb8, 0xd8, 0xa1, 0x22, 0x42, 0x22, 0x7a, 0x20, 0x0b, 0xf5,
+	0x50, 0x6d, 0x93, 0x12, 0x45, 0x13, 0x85, 0x98, 0x9c, 0xc4, 0x06, 0x76, 0xa3, 0x31, 0x20, 0x00,
+	0x00, 0xff, 0xff, 0x62, 0x37, 0xf2, 0x36, 0xb4, 0x00, 0x00, 0x00,
+}
--- a/rpcx/internal/mock/deposit.proto
+++ b/rpcx/internal/mock/deposit.proto
@@ -0,0 +1,15 @@
+syntax = "proto3";
+
+package mock;
+
+message DepositRequest {
+  float amount = 1;
+}
+
+message DepositResponse {
+  bool ok = 1;
+}
+
+service DepositService {
+  rpc Deposit(DepositRequest) returns (DepositResponse);
+}
--- a/rpcx/internal/mock/depositserver.go
+++ b/rpcx/internal/mock/depositserver.go
@@ -0,0 +1,19 @@
+package mock
+
+import (
+	"context"
+
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+type DepositServer struct {
+}
+
+func (*DepositServer) Deposit(ctx context.Context, req *DepositRequest) (*DepositResponse, error) {
+	if req.GetAmount() < 0 {
+		return nil, status.Errorf(codes.InvalidArgument, "cannot deposit %v", req.GetAmount())
+	}
+
+	return &DepositResponse{Ok: true}, nil
+}
--- a/rpcx/internal/resolver/directbuilder.go
+++ b/rpcx/internal/resolver/directbuilder.go
@@ -11,7 +11,9 @@ type directBuilder struct{}
 func (d *directBuilder) Build(target resolver.Target, cc resolver.ClientConn, opts resolver.BuildOptions) (
 	resolver.Resolver, error) {
 	var addrs []resolver.Address
-	endpoints := strings.Split(target.Endpoint, EndpointSep)
+	endpoints := strings.FieldsFunc(target.Endpoint, func(r rune) bool {
+		return r == EndpointSepChar
+	})

 	for _, val := range subset(endpoints, subsetSize) {
 		addrs = append(addrs, resolver.Address{
--- a/rpcx/internal/resolver/directbuilder_test.go
+++ b/rpcx/internal/resolver/directbuilder_test.go
@@ -0,0 +1,52 @@
+package resolver
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/lang"
+	"github.com/tal-tech/go-zero/core/mathx"
+	"google.golang.org/grpc/resolver"
+)
+
+func TestDirectBuilder_Build(t *testing.T) {
+	tests := []int{
+		0,
+		1,
+		2,
+		subsetSize / 2,
+		subsetSize,
+		subsetSize * 2,
+	}
+
+	for _, test := range tests {
+		t.Run(strconv.Itoa(test), func(t *testing.T) {
+			var servers []string
+			for i := 0; i < test; i++ {
+				servers = append(servers, fmt.Sprintf("localhost:%d", i))
+			}
+			var b directBuilder
+			cc := new(mockedClientConn)
+			_, err := b.Build(resolver.Target{
+				Scheme:   DirectScheme,
+				Endpoint: strings.Join(servers, ","),
+			}, cc, resolver.BuildOptions{})
+			assert.Nil(t, err)
+			size := mathx.MinInt(test, subsetSize)
+			assert.Equal(t, size, len(cc.state.Addresses))
+			m := make(map[string]lang.PlaceholderType)
+			for _, each := range cc.state.Addresses {
+				m[each.Addr] = lang.Placeholder
+			}
+			assert.Equal(t, size, len(m))
+		})
+	}
+}
+
+func TestDirectBuilder_Scheme(t *testing.T) {
+	var b directBuilder
+	assert.Equal(t, DirectScheme, b.Scheme())
+}
--- a/rpcx/internal/resolver/discovbuilder.go
+++ b/rpcx/internal/resolver/discovbuilder.go
@@ -11,7 +11,9 @@ type discovBuilder struct{}

 func (d *discovBuilder) Build(target resolver.Target, cc resolver.ClientConn, opts resolver.BuildOptions) (
 	resolver.Resolver, error) {
-	hosts := strings.Split(target.Authority, EndpointSep)
+	hosts := strings.FieldsFunc(target.Authority, func(r rune) bool {
+		return r == EndpointSepChar
+	})
 	sub, err := discov.NewSubscriber(hosts, target.Endpoint)
 	if err != nil {
 		return nil, err
--- a/rpcx/internal/resolver/resolver.go
+++ b/rpcx/internal/resolver/resolver.go
@@ -1,17 +1,22 @@
 package resolver

-import "google.golang.org/grpc/resolver"
+import (
+	"fmt"
+
+	"google.golang.org/grpc/resolver"
+)

 const (
-	DirectScheme = "direct"
-	DiscovScheme = "discov"
-	EndpointSep  = ","
-	subsetSize   = 32
+	DirectScheme    = "direct"
+	DiscovScheme    = "discov"
+	EndpointSepChar = ','
+	subsetSize      = 32
 )

 var (
-	dirBuilder directBuilder
-	disBuilder discovBuilder
+	EndpointSep = fmt.Sprintf("%c", EndpointSepChar)
+	dirBuilder  directBuilder
+	disBuilder  discovBuilder
 )

 func RegisterResolver() {
--- a/rpcx/internal/resolver/resolver_test.go
+++ b/rpcx/internal/resolver/resolver_test.go
@@ -0,0 +1,36 @@
+package resolver
+
+import (
+	"testing"
+
+	"google.golang.org/grpc/resolver"
+	"google.golang.org/grpc/serviceconfig"
+)
+
+func TestNopResolver(t *testing.T) {
+	// make sure ResolveNow & Close don't panic
+	var r nopResolver
+	r.ResolveNow(resolver.ResolveNowOptions{})
+	r.Close()
+}
+
+type mockedClientConn struct {
+	state resolver.State
+}
+
+func (m *mockedClientConn) UpdateState(state resolver.State) {
+	m.state = state
+}
+
+func (m *mockedClientConn) ReportError(err error) {
+}
+
+func (m *mockedClientConn) NewAddress(addresses []resolver.Address) {
+}
+
+func (m *mockedClientConn) NewServiceConfig(serviceConfig string) {
+}
+
+func (m *mockedClientConn) ParseServiceConfig(serviceConfigJSON string) *serviceconfig.ParseResult {
+	return nil
+}
--- a/rpcx/internal/rpcserver_test.go
+++ b/rpcx/internal/rpcserver_test.go
@@ -0,0 +1,16 @@
+package internal
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/stat"
+)
+
+func TestWithMetrics(t *testing.T) {
+	metrics := stat.NewMetrics("foo")
+	opt := WithMetrics(metrics)
+	var options rpcServerOptions
+	opt(&options)
+	assert.Equal(t, metrics, options.metrics)
+}
--- a/rpcx/internal/server_test.go
+++ b/rpcx/internal/server_test.go
@@ -0,0 +1,53 @@
+package internal
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/stat"
+	"google.golang.org/grpc"
+)
+
+func TestBaseRpcServer_AddOptions(t *testing.T) {
+	metrics := stat.NewMetrics("foo")
+	server := newBaseRpcServer("foo", metrics)
+	server.SetName("bar")
+	var opt grpc.EmptyServerOption
+	server.AddOptions(opt)
+	assert.Contains(t, server.options, opt)
+}
+
+func TestBaseRpcServer_AddStreamInterceptors(t *testing.T) {
+	metrics := stat.NewMetrics("foo")
+	server := newBaseRpcServer("foo", metrics)
+	server.SetName("bar")
+	var vals []int
+	f := func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
+		vals = append(vals, 1)
+		return nil
+	}
+	server.AddStreamInterceptors(f)
+	for _, each := range server.streamInterceptors {
+		assert.Nil(t, each(nil, nil, nil, nil))
+	}
+	assert.ElementsMatch(t, []int{1}, vals)
+}
+
+func TestBaseRpcServer_AddUnaryInterceptors(t *testing.T) {
+	metrics := stat.NewMetrics("foo")
+	server := newBaseRpcServer("foo", metrics)
+	server.SetName("bar")
+	var vals []int
+	f := func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (
+		resp interface{}, err error) {
+		vals = append(vals, 1)
+		return nil, nil
+	}
+	server.AddUnaryInterceptors(f)
+	for _, each := range server.unaryInterceptors {
+		_, err := each(context.Background(), nil, nil, nil)
+		assert.Nil(t, err)
+	}
+	assert.ElementsMatch(t, []int{1}, vals)
+}
--- a/rpcx/internal/serverinterceptors/authinterceptor_test.go
+++ b/rpcx/internal/serverinterceptors/authinterceptor_test.go
@@ -0,0 +1,200 @@
+package serverinterceptors
+
+import (
+	"context"
+	"testing"
+
+	"github.com/alicebob/miniredis"
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/stores/redis"
+	"github.com/tal-tech/go-zero/rpcx/internal/auth"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/metadata"
+)
+
+func TestStreamAuthorizeInterceptor(t *testing.T) {
+	tests := []struct {
+		name     string
+		app      string
+		token    string
+		strict   bool
+		hasError bool
+	}{
+		{
+			name:     "strict=false",
+			strict:   false,
+			hasError: false,
+		},
+		{
+			name:     "strict=true",
+			strict:   true,
+			hasError: true,
+		},
+		{
+			name:     "strict=true,with token",
+			app:      "foo",
+			token:    "bar",
+			strict:   true,
+			hasError: false,
+		},
+		{
+			name:     "strict=true,with error token",
+			app:      "foo",
+			token:    "error",
+			strict:   true,
+			hasError: true,
+		},
+	}
+
+	r := miniredis.NewMiniRedis()
+	assert.Nil(t, r.Start())
+	defer r.Close()
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			store := redis.NewRedis(r.Addr(), redis.NodeType)
+			if len(test.app) > 0 {
+				assert.Nil(t, store.Hset("apps", test.app, test.token))
+				defer store.Hdel("apps", test.app)
+			}
+
+			authenticator, err := auth.NewAuthenticator(store, "apps", test.strict)
+			assert.Nil(t, err)
+			interceptor := StreamAuthorizeInterceptor(authenticator)
+			md := metadata.New(map[string]string{
+				"app":   "foo",
+				"token": "bar",
+			})
+			ctx := metadata.NewIncomingContext(context.Background(), md)
+			stream := mockedStream{ctx: ctx}
+			err = interceptor(nil, stream, nil, func(srv interface{}, stream grpc.ServerStream) error {
+				return nil
+			})
+			if test.hasError {
+				assert.NotNil(t, err)
+			} else {
+				assert.Nil(t, err)
+			}
+		})
+	}
+}
+
+func TestUnaryAuthorizeInterceptor(t *testing.T) {
+	tests := []struct {
+		name     string
+		app      string
+		token    string
+		strict   bool
+		hasError bool
+	}{
+		{
+			name:     "strict=false",
+			strict:   false,
+			hasError: false,
+		},
+		{
+			name:     "strict=true",
+			strict:   true,
+			hasError: true,
+		},
+		{
+			name:     "strict=true,with token",
+			app:      "foo",
+			token:    "bar",
+			strict:   true,
+			hasError: false,
+		},
+		{
+			name:     "strict=true,with error token",
+			app:      "foo",
+			token:    "error",
+			strict:   true,
+			hasError: true,
+		},
+	}
+
+	r := miniredis.NewMiniRedis()
+	assert.Nil(t, r.Start())
+	defer r.Close()
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			store := redis.NewRedis(r.Addr(), redis.NodeType)
+			if len(test.app) > 0 {
+				assert.Nil(t, store.Hset("apps", test.app, test.token))
+				defer store.Hdel("apps", test.app)
+			}
+
+			authenticator, err := auth.NewAuthenticator(store, "apps", test.strict)
+			assert.Nil(t, err)
+			interceptor := UnaryAuthorizeInterceptor(authenticator)
+			md := metadata.New(map[string]string{
+				"app":   "foo",
+				"token": "bar",
+			})
+			ctx := metadata.NewIncomingContext(context.Background(), md)
+			_, err = interceptor(ctx, nil, nil,
+				func(ctx context.Context, req interface{}) (interface{}, error) {
+					return nil, nil
+				})
+			if test.hasError {
+				assert.NotNil(t, err)
+			} else {
+				assert.Nil(t, err)
+			}
+			if test.strict {
+				_, err = interceptor(context.Background(), nil, nil,
+					func(ctx context.Context, req interface{}) (interface{}, error) {
+						return nil, nil
+					})
+				assert.NotNil(t, err)
+
+				var md metadata.MD
+				ctx := metadata.NewIncomingContext(context.Background(), md)
+				_, err = interceptor(ctx, nil, nil,
+					func(ctx context.Context, req interface{}) (interface{}, error) {
+						return nil, nil
+					})
+				assert.NotNil(t, err)
+
+				md = metadata.New(map[string]string{
+					"app":   "",
+					"token": "",
+				})
+				ctx = metadata.NewIncomingContext(context.Background(), md)
+				_, err = interceptor(ctx, nil, nil,
+					func(ctx context.Context, req interface{}) (interface{}, error) {
+						return nil, nil
+					})
+				assert.NotNil(t, err)
+			}
+		})
+	}
+}
+
+type mockedStream struct {
+	ctx context.Context
+}
+
+func (m mockedStream) SetHeader(md metadata.MD) error {
+	return nil
+}
+
+func (m mockedStream) SendHeader(md metadata.MD) error {
+	return nil
+}
+
+func (m mockedStream) SetTrailer(md metadata.MD) {
+}
+
+func (m mockedStream) Context() context.Context {
+	return m.ctx
+}
+
+func (m mockedStream) SendMsg(v interface{}) error {
+	return nil
+}
+
+func (m mockedStream) RecvMsg(v interface{}) error {
+	return nil
+}
--- a/rpcx/internal/serverinterceptors/crashinterceptor_test.go
+++ b/rpcx/internal/serverinterceptors/crashinterceptor_test.go
@@ -0,0 +1,31 @@
+package serverinterceptors
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/logx"
+	"google.golang.org/grpc"
+)
+
+func init() {
+	logx.Disable()
+}
+
+func TestStreamCrashInterceptor(t *testing.T) {
+	err := StreamCrashInterceptor(nil, nil, nil, func(
+		srv interface{}, stream grpc.ServerStream) error {
+		panic("mock panic")
+	})
+	assert.NotNil(t, err)
+}
+
+func TestUnaryCrashInterceptor(t *testing.T) {
+	interceptor := UnaryCrashInterceptor()
+	_, err := interceptor(context.Background(), nil, nil,
+		func(ctx context.Context, req interface{}) (interface{}, error) {
+			panic("mock panic")
+		})
+	assert.NotNil(t, err)
+}
--- a/rpcx/internal/serverinterceptors/prommetricinterceptor.go
+++ b/rpcx/internal/serverinterceptors/prommetricinterceptor.go
@@ -33,12 +33,12 @@ var (
 )

 func UnaryPromMetricInterceptor() grpc.UnaryServerInterceptor {
-	return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
+	return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (
+		interface{}, error) {
 		startTime := timex.Now()
 		resp, err := handler(ctx, req)
 		metricServerReqDur.Observe(int64(timex.Since(startTime)/time.Millisecond), info.FullMethod)
 		metricServerReqCodeTotal.Inc(info.FullMethod, strconv.Itoa(int(status.Code(err))))
 		return resp, err
 	}
-
 }
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
kevin	8dd93d59a0	refactor code	2020-09-03 14:00:09 +08:00
Keson	3a4e1cbb33	fix bug: miss time import (#36 ) * add execute files * add protoc-osx * add rpc generation * add rpc generation * add: rpc template generation * optimize gomod cache * add README.md * format error * reactor templatex.go * update project.go & README.md * fix bug: miss time import	2020-09-03 13:57:28 +08:00
kevin	d1129e3974	refactor	2020-09-03 10:15:14 +08:00
Leonard Wang	1e85f74fd8	fix shorturl example code (#35 )	2020-09-03 08:34:11 +08:00
kingxt	33eb2936e8	fix: root path on windows bug (#34 ) * rebase upstream * rebase * trim no need line * trim no need line * trim no need line * fix bug on windows Co-authored-by: kingxt <dream4kingxt@163.com>	2020-09-02 15:14:27 +08:00
kevin	b7a018b33a	add shorturl example code	2020-09-01 16:04:39 +08:00
kevin	ea1c9aa250	support go 1.13	2020-09-01 15:04:01 +08:00
kevin	fbad810cd1	update shorturl doc	2020-09-01 13:46:05 +08:00
kevin	6b15475ccd	update shorturl doc	2020-09-01 13:38:16 +08:00
kingxt	5c0c3ea467	trim space (#31 ) * rebase upstream * rebase * trim no need line * trim no need line * trim no need line * trim space Co-authored-by: kingxt <dream4kingxt@163.com>	2020-09-01 11:46:10 +08:00
kingxt	89f3712347	remove no need empty line (#29 ) * rebase upstream * rebase * trim no need line * trim no need line * trim no need line * trim no need line Co-authored-by: kingxt <dream4kingxt@163.com>	2020-09-01 11:08:19 +08:00
kevin	af7acdd843	fix doc errors	2020-09-01 10:26:16 +08:00
kevin	7ffa3349a9	update readme	2020-08-31 22:45:55 +08:00
kevin	f03862c378	update docs	2020-08-31 22:37:43 +08:00
kevin	fe3e70a60f	update shorturl doc	2020-08-31 20:52:29 +08:00
kevin	36174ba5cc	make svcCtx as a member for better code generation	2020-08-31 12:32:13 +08:00
kevin	7b17b3604a	fix dockerfile generation	2020-08-31 12:27:38 +08:00
kevin	eb40c2731d	remove files	2020-08-30 23:56:51 +08:00
kevin	618bec5075	remove makefile generation	2020-08-30 23:52:51 +08:00
kevin	5821b7324e	update readme	2020-08-30 23:34:57 +08:00
kevin	befdaab542	update goctl makefile	2020-08-30 18:22:46 +08:00
kevin	431be8ed9d	make goctl work on linux	2020-08-30 16:37:34 +08:00
kevin	3c688c319e	update shorturl doc	2020-08-29 23:42:42 +08:00
kevin	59ffa75c00	fix typo in doc	2020-08-29 23:33:34 +08:00
kevin	09340e82a7	fix doc error	2020-08-29 22:51:48 +08:00
kevin	6c4a4be5d2	update shorturl doc	2020-08-29 20:27:52 +08:00
kevin	6e3d99e869	reorg imports	2020-08-29 14:31:51 +08:00
Keson	0f97b2019a	rpc generation support windows (#28 ) * add execute files * add protoc-osx * add rpc generation * add rpc generation * add: rpc template generation * update usage * fixed env prepare for project in go path * optimize gomod cache * add README.md * format error * reactor templatex.go * remove waste code * update project.go & README.md * update project.go & README.md * rpc generation supports windows	2020-08-29 14:30:17 +08:00
kevin	0cf4ed46a1	update shorturl doc	2020-08-29 00:36:36 +08:00
kevin	3affe62ae4	update shorturl doc	2020-08-29 00:28:57 +08:00
Keson	0734bbcab3	update handler generation (#27 ) * add execute files * add protoc-osx * add rpc generation * add rpc generation * add: rpc template generation * update usage * fixed env prepare for project in go path * optimize gomod cache * add README.md * format error * reactor templatex.go * remove waste code * update project.go & README.md * update project.go & README.md	2020-08-29 00:15:15 +08:00
kevin	f411178a4f	refine rpc generator	2020-08-28 22:44:41 +08:00
kevin	72132ce399	refine goctl rpc generator	2020-08-28 21:22:35 +08:00
Keson	db16115037	rpc service generation (#26 ) * add execute files * add protoc-osx * add rpc generation * add rpc generation * add: rpc template generation * update usage * fixed env prepare for project in go path * optimize gomod cache * add README.md * format error * reactor templatex.go * remove waste code	2020-08-28 19:24:58 +08:00
kevin	71bbf91a63	update shorturl doc	2020-08-27 23:29:56 +08:00
kevin	69ccc61cfe	update shorturl doc	2020-08-27 23:16:07 +08:00
kevin	a94cf653f0	better image rendering	2020-08-27 23:00:40 +08:00
kevin	77e23ad65d	add quick example	2020-08-27 22:54:18 +08:00
kingxt	38806e7237	fix config yaml gen (#25 ) * optimized * format Co-authored-by: kingxt <dream4kingxt@163.com>	2020-08-27 15:23:19 +08:00
kevin	a987d12237	sort imports on api generation	2020-08-27 14:40:05 +08:00
kevin	33208e6ef6	return zero value instead of nil on generated logic	2020-08-27 13:49:31 +08:00
kevin	5d8a3c07cd	disable cpu stat in wsl linux	2020-08-27 13:22:44 +08:00
kevin	1c24e71568	use yaml, and detect go.mod in current dir	2020-08-27 11:44:35 +08:00
kevin	229544f3ca	move test code into internal package	2020-08-26 15:18:45 +08:00
kevin	c575fa7f95	fix ci script	2020-08-26 14:59:04 +08:00
kevin	fe2252184a	update ci configuration	2020-08-26 14:53:12 +08:00
kevin	1a8014c704	add more tests	2020-08-26 14:32:35 +08:00
kevin	30e52707ae	add more tests	2020-08-26 14:19:16 +08:00
kingxt	73b61e09ed	fix format (#23 ) * fir format * fix bug Co-authored-by: kingxt <dream4kingxt@163.com>	2020-08-26 11:32:55 +08:00
kevin	9b8595a85e	add more tests	2020-08-25 22:42:42 +08:00
kevin	015e284515	add more tests	2020-08-25 20:21:59 +08:00
kevin	456b395860	use predefined endpoint separator	2020-08-25 18:36:30 +08:00
kevin	f3c367a323	add fatal to stderr	2020-08-25 16:59:14 +08:00
kevin	a32028c4fb	add etcd deploy yaml	2020-08-25 16:32:01 +08:00
kevin	b4572fa064	add more tests	2020-08-24 23:09:46 +08:00
kevin	ccbabf6f58	add more tests	2020-08-24 18:18:58 +08:00
kevin	5989444227	add more tests	2020-08-23 22:33:20 +08:00
kevin	dc286a03f5	add more tests	2020-08-23 15:53:10 +08:00
kevin	b82c02ed16	add more tests	2020-08-22 23:08:33 +08:00
kevin	59ba4ecc5b	accelerate tests	2020-08-21 23:24:07 +08:00
kevin	5e7b514ae2	make tests parallel	2020-08-21 23:15:45 +08:00
kevin	2b1466e41e	add more tests	2020-08-21 23:09:35 +08:00
kevin	9c9f80518f	update readme	2020-08-21 22:51:04 +08:00
kevin	25973d6b59	update doc, add architecture picture	2020-08-21 20:09:53 +08:00
kevin	6237d01948	make test stable	2020-08-21 16:57:17 +08:00
kevin	49316b113e	update readme	2020-08-21 16:52:17 +08:00
kevin	6a673e8cb0	add more tests	2020-08-21 16:42:08 +08:00
kingxt	0efa28ddbd	fix generate api demo (#19 ) Co-authored-by: kingxt <dream4kingxt@163.com>	2020-08-21 13:47:35 +08:00
kevin	0b6a13fe84	add more tests	2020-08-20 22:53:18 +08:00
kevin	11aa6668e8	add more tests	2020-08-20 15:35:13 +08:00
kevin	267a283328	reorg imports	2020-08-20 10:46:39 +08:00
kevin	2d8366b30e	update keywords.md	2020-08-20 10:44:14 +08:00
Keson	db83843558	gocctl model v20200819 (#18 ) * rename snake、came method * new: generate model from data source * add change log md * update model doc * update doc * beauty code	2020-08-20 10:29:18 +08:00
kevin	50565c9765	update doc	2020-08-19 22:34:54 +08:00