add doc

utils_req.go

@@ -3,6 +3,7 @@ package got
 import (
 	"bytes"
 	"context"
+	"encoding/json"
 	"io"
 	"mime"
 	"net/http"
@@ -12,11 +13,18 @@ import (
 // ReqMIME option type, it should be like ".json", "test.json", "a/b/c.jpg", etc
 type ReqMIME string
 
-// Req the url. The method is the http method, default value is "GET".
-// If an option is http.Header, it will be used as the request header.
-// If an option is [Utils.ReqMIME], it will be used to set the Content-Type header.
+// Req is a helper method to send http request. It will handle errors automatically, so you don't need to check errors.
+// The method is the http method, default value is "GET".
+// If an option is [http.Header], it will be used as the request header.
+// If an option is [ReqMIME], it will be used to set the Content-Type header.
 // If an option is [context.Context], it will be used as the request context.
-// Other option type will be treat as request body, it will be encoded by Utils.Write .
+// Other option type will be treat as request body, it will be encoded by [Utils.Write].
+// Some request examples:
+//
+//	Req("GET", "http://example.com")
+//	Req("GET", "http://example.com", context.TODO())
+//	Req("POST", "http://example.com", map[string]any{"a": 1})
+//	Req("POST", "http://example.com", http.Header{"Host": "example.com"}, ReqMIME(".json"), map[string]any{"a": 1})
 func (ut Utils) Req(method, url string, options ...interface{}) *ResHelper {
 	ut.Helper()
 
@@ -66,19 +74,19 @@ type ResHelper struct {
 	err error
 }
 
-// Bytes body
+// Bytes parses body as [*bytes.Buffer] and returns the result
 func (res *ResHelper) Bytes() *bytes.Buffer {
 	res.ut.Helper()
 	return res.ut.Read(res.Body)
 }
 
-// String body
+// String parses body as string and returns the result
 func (res *ResHelper) String() string {
 	res.ut.Helper()
 	return res.Bytes().String()
 }
 
-// JSON body
+// JSON parses body as json and returns the result
 func (res *ResHelper) JSON() (v interface{}) {
 	res.ut.Helper()
 	return res.ut.JSON(res.Body)