update example doc

example/shorturl/api/etc/shorturl-api.yaml

@@ -1,3 +1,8 @@
 Name: shorturl-api
 Host: 0.0.0.0
 Port: 8888
+Transform:
+  Etcd:
+    Hosts:
+      - localhost:2379
+    Key: transform.rpc

example/shorturl/api/internal/config/config.go

@@ -1,7 +1,11 @@
 package config
 
-import "github.com/tal-tech/go-zero/rest"
+import (
+	"github.com/tal-tech/go-zero/rest"
+	"github.com/tal-tech/go-zero/rpcx"
+)
 
 type Config struct {
 	rest.RestConf
+	Transform rpcx.RpcClientConf
 }

example/shorturl/api/internal/logic/expandlogic.go

@@ -5,6 +5,7 @@ import (
 
 	"shorturl/api/internal/svc"
 	"shorturl/api/internal/types"
+	"shorturl/rpc/transform/transformer"
 
 	"github.com/tal-tech/go-zero/core/logx"
 )
@@ -24,5 +25,14 @@ func NewExpandLogic(ctx context.Context, svcCtx *svc.ServiceContext) ExpandLogic
 }
 
 func (l *ExpandLogic) Expand(req types.ExpandReq) (*types.ExpandResp, error) {
-	return &types.ExpandResp{}, nil
+	resp, err := l.svcCtx.Transformer.Expand(l.ctx, &transformer.ExpandReq{
+		Shorten: req.Shorten,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return &types.ExpandResp{
+		Url: resp.Url,
+	}, nil
 }

example/shorturl/api/internal/logic/shortenlogic.go

@@ -5,6 +5,7 @@ import (
 
 	"shorturl/api/internal/svc"
 	"shorturl/api/internal/types"
+	"shorturl/rpc/transform/transformer"
 
 	"github.com/tal-tech/go-zero/core/logx"
 )
@@ -24,5 +25,14 @@ func NewShortenLogic(ctx context.Context, svcCtx *svc.ServiceContext) ShortenLog
 }
 
 func (l *ShortenLogic) Shorten(req types.ShortenReq) (*types.ShortenResp, error) {
-	return &types.ShortenResp{}, nil
+	resp, err := l.svcCtx.Transformer.Shorten(l.ctx, &transformer.ShortenReq{
+		Url: req.Url,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return &types.ShortenResp{
+		Shorten: resp.Shorten,
+	}, nil
 }

example/shorturl/api/internal/svc/servicecontext.go

@@ -1,11 +1,20 @@
 package svc
 
-import "shorturl/api/internal/config"
+import (
+	"shorturl/api/internal/config"
+	"shorturl/rpc/transform/transformer"
+
+	"github.com/tal-tech/go-zero/rpcx"
+)
 
 type ServiceContext struct {
-	Config config.Config
+	Config      config.Config
+	Transformer transformer.Transformer
 }
 
 func NewServiceContext(c config.Config) *ServiceContext {
-	return &ServiceContext{Config: c}
+	return &ServiceContext{
+		Config:      c,
+		Transformer: transformer.NewTransformer(rpcx.MustNewClient(c.Transform)),
+	}
 }