feat: add httpc/Get httpc/Post (#1640)

rest/httpc/requests.go

@@ -1,6 +1,7 @@
 package httpc
 
 import (
+	"io"
 	"net/http"
 
 	"github.com/zeromicro/go-zero/core/breaker"
@@ -36,6 +37,26 @@ func Do(key string, r *http.Request, opts ...Option) (resp *http.Response, err e
 	return
 }
 
+// Get sends an HTTP GET request to the service assocated with the given key.
+func Get(key, url string, opts ...Option) (*http.Response, error) {
+	r, err := http.NewRequest(http.MethodGet, url, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	return Do(key, r, opts...)
+}
+
+// Post sends an HTTP POST request to the service assocated with the given key.
+func Post(key, url, contentType string, body io.Reader, opts ...Option) (*http.Response, error) {
+	r, err := http.NewRequest(http.MethodPost, url, body)
+	if err != nil {
+		return nil, err
+	}
+
+	return Do(key, r, opts...)
+}
+
 func doRequest(key string, r *http.Request, opts ...Option) (resp *http.Response, err error) {
 	brk := breaker.GetBreaker(key)
 	err = brk.DoWithAcceptable(func() error {

rest/httpc/requests_test.go

@@ -11,9 +11,9 @@ import (
 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) {
+	_, err := Get("foo", "tcp://bad request")
+	assert.NotNil(t, err)
+	resp, err := Get("foo", svr.URL, func(cli *http.Client) {
 		cli.Transport = http.DefaultTransport
 	})
 	assert.Nil(t, err)
@@ -22,9 +22,9 @@ func TestDo(t *testing.T) {
 
 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)
+	_, err := Post("foo", "tcp://bad request", "application/json", nil)
+	assert.NotNil(t, err)
+	resp, err := Post("foo", svr.URL, "application/json", nil)
 	assert.Nil(t, err)
 	assert.Equal(t, http.StatusNotFound, resp.StatusCode)
 }