fix: fix http post to support multipart/form-data header

netutil/http.go

@@ -6,7 +6,8 @@
 // HttpGet, HttpPost, HttpDelete, HttpPut, HttpPatch, function param `url` is required.
 // HttpGet, HttpPost, HttpDelete, HttpPut, HttpPatch, function param `params` is variable, the order is:
 // params[0] is header which type should be http.Header or map[string]string,
-// params[1] is query param which type should be url.Values or map[string]any,
+// params[1] is query param which type should be url.Values or map[string]any, when content-type header is
+// multipart/form-data or application/x-www-form-urlencoded, params[1] should be url.Values
 // params[2] is post body which type should be []byte.
 // params[3] is http client which type should be http.Client.
 package netutil

netutil/http_test.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"io/ioutil"
 	"log"
+	"net/url"
 	"testing"
 
 	"github.com/duke-git/lancet/v2/internal"
@@ -46,6 +47,29 @@ func TestHttpPost(t *testing.T) {
 	t.Log("response: ", resp.StatusCode, string(body))
 }
 
+func TestHttpPostFormData(t *testing.T) {
+	apiUrl := "https://jsonplaceholder.typicode.com/todos"
+	header := map[string]string{
+		// "Content-Type": "application/x-www-form-urlencoded",
+		"Content-Type": "multipart/form-data",
+	}
+	type Todo struct {
+		UserId int    `json:"userId"`
+		Title  string `json:"title"`
+	}
+	postData := url.Values{}
+	postData.Add("userId", "1")
+	postData.Add("title", "TestAddToDo")
+
+	resp, err := HttpPost(apiUrl, header, postData, nil)
+	if err != nil {
+		log.Fatal(err)
+		t.FailNow()
+	}
+	body, _ := ioutil.ReadAll(resp.Body)
+	t.Log("response: ", resp.StatusCode, string(body))
+}
+
 func TestHttpPut(t *testing.T) {
 	url := "https://jsonplaceholder.typicode.com/todos/1"
 	header := map[string]string{

netutil/net_internal.go

@@ -81,10 +81,16 @@ func setHeaderAndQueryAndBody(req *http.Request, reqUrl string, header, queryPar
 	if err != nil {
 		return err
 	}
-	err = setBodyByte(req, body)
+	if req.Header.Get("Content-Type") == "multipart/form-data" || req.Header.Get("Content-Type") == "application/x-www-form-urlencoded" {
+		formData := queryParam.(url.Values)
+		err = setBodyByte(req, []byte(formData.Encode()))
+	} else {
+		err = setBodyByte(req, body)
+	}
 	if err != nil {
 		return err
 	}
+
 	return nil
 }