feat: add rest/httpc to make http requests governacible (#1638)

* feat: change x-trace-id to traceparent to follow opentelemetry

* feat: add rest/httpc to make http requests governacible

* chore: remove blank lines

rest/httpc/requests_test.go

@@ -0,0 +1,39 @@
+package httpc
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestDo(t *testing.T) {
+	svr := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+	}))
+	req, err := http.NewRequest(http.MethodGet, svr.URL, nil)
+	assert.Nil(t, err)
+	resp, err := Do("foo", req, func(cli *http.Client) {
+		cli.Transport = http.DefaultTransport
+	})
+	assert.Nil(t, err)
+	assert.Equal(t, http.StatusOK, resp.StatusCode)
+}
+
+func TestDoNotFound(t *testing.T) {
+	svr := httptest.NewServer(http.NotFoundHandler())
+	req, err := http.NewRequest(http.MethodGet, svr.URL, nil)
+	assert.Nil(t, err)
+	resp, err := Do("foo", req)
+	assert.Nil(t, err)
+	assert.Equal(t, http.StatusNotFound, resp.StatusCode)
+}
+
+func TestDoMoved(t *testing.T) {
+	svr := httptest.NewServer(http.RedirectHandler("/foo", http.StatusMovedPermanently))
+	req, err := http.NewRequest(http.MethodGet, svr.URL, nil)
+	assert.Nil(t, err)
+	_, err = Do("foo", req)
+	// too many redirects
+	assert.NotNil(t, err)
+}