Update goclt dart gen: Add scheme config and content-type header (#2987)

Co-authored-by: zhoumingji <zhoumingji@cmsr.chinamobile.com>

tools/goctl/api/cmd.go

@@ -106,6 +106,7 @@ func init() {
 	dartCmd.Flags().StringVar(&dartgen.VarStringAPI, "api", "", "The api file")
 	dartCmd.Flags().BoolVar(&dartgen.VarStringLegacy, "legacy", false, "Legacy generator for flutter v1")
 	dartCmd.Flags().StringVar(&dartgen.VarStringHostname, "hostname", "", "hostname of the server")
+	dartCmd.Flags().StringVar(&dartgen.VarStringScheme, "scheme", "", "scheme of the server")
 
 	docCmd.Flags().StringVar(&docgen.VarStringDir, "dir", "", "The target dir")
 	docCmd.Flags().StringVar(&docgen.VarStringOutput, "o", "", "The output markdown directory")

tools/goctl/api/dartgen/gen.go

@@ -19,6 +19,8 @@ var (
 	VarStringLegacy bool
 	// VarStringHostname defines the hostname.
 	VarStringHostname string
+	// VarStringSchema defines the scheme.
+	VarStringScheme string
 )
 
 // DartCommand create dart network request code
@@ -27,6 +29,7 @@ func DartCommand(_ *cobra.Command, _ []string) error {
 	dir := VarStringDir
 	isLegacy := VarStringLegacy
 	hostname := VarStringHostname
+	scheme := VarStringScheme
 	if len(apiFile) == 0 {
 		return errors.New("missing -api")
 	}
@@ -37,6 +40,10 @@ func DartCommand(_ *cobra.Command, _ []string) error {
 		fmt.Println("you could use '-hostname' flag to specify your server hostname")
 		hostname = "go-zero.dev"
 	}
+	if len(scheme) == 0 {
+		fmt.Println("you could use '-scheme' flag to specify your server scheme")
+		scheme = "http"
+	}
 
 	api, err := parser.Parse(apiFile)
 	if err != nil {
@@ -54,7 +61,7 @@ func DartCommand(_ *cobra.Command, _ []string) error {
 	api.Info.Title = strings.Replace(apiFile, ".api", "", -1)
 	logx.Must(genData(dir+"data/", api, isLegacy))
 	logx.Must(genApi(dir+"api/", api, isLegacy))
-	logx.Must(genVars(dir+"vars/", isLegacy, hostname))
+	logx.Must(genVars(dir+"vars/", isLegacy, scheme, hostname))
 	if err := formatDir(dir); err != nil {
 		logx.Errorf("failed to format, %v", err)
 	}

tools/goctl/api/dartgen/genvars.go

@@ -76,14 +76,14 @@ Future<Tokens?> getTokens() async {
 }`
 )
 
-func genVars(dir string, isLegacy bool, hostname string) error {
+func genVars(dir string, isLegacy bool, scheme string, hostname string) error {
 	err := os.MkdirAll(dir, 0o755)
 	if err != nil {
 		return err
 	}
 
 	if !fileExists(dir + "vars.dart") {
-		err = ioutil.WriteFile(dir+"vars.dart", []byte(fmt.Sprintf(`const serverHost='%s';`, hostname)), 0o644)
+		err = ioutil.WriteFile(dir+"vars.dart", []byte(fmt.Sprintf(`const serverHost='%s://%s';`, scheme, hostname)), 0o644)
 		if err != nil {
 			return err
 		}

tools/goctl/api/dartgen/vars.go

@@ -56,12 +56,21 @@ Future _apiRequest(String method, String path, dynamic data,
     var client = HttpClient();
     HttpClientRequest r;
     if (method == 'POST') {
-      r = await client.postUrl(Uri.parse('https://' + serverHost + path));
+      r = await client.postUrl(Uri.parse(serverHost + path));
     } else {
-      r = await client.getUrl(Uri.parse('https://' + serverHost + path));
+      r = await client.getUrl(Uri.parse(serverHost + path));
+    }
+
+    var strData = '';
+    if (data != null) {
+      strData = jsonEncode(data);
+    }
+
+    if (method == 'POST') {
+      r.headers.set('Content-Type', 'application/json; charset=utf-8');
+      r.headers.set('Content-Length', utf8.encode(strData).length);
     }
 
-    r.headers.set('Content-Type', 'application/json; charset=utf-8');
     if (tokens != null) {
       r.headers.set('Authorization', tokens.accessToken);
     }
@@ -70,11 +79,9 @@ Future _apiRequest(String method, String path, dynamic data,
         r.headers.set(k, v);
       });
     }
-    var strData = '';
-    if (data != null) {
-      strData = jsonEncode(data);
-    }
+
     r.write(strData);
+
     var rp = await r.close();
     var body = await rp.transform(utf8.decoder).join();
     print('${rp.statusCode} - $path');
@@ -147,12 +154,19 @@ Future _apiRequest(String method, String path, dynamic data,
 			var client = HttpClient();
 			HttpClientRequest r;
 			if (method == 'POST') {
-				r = await client.postUrl(Uri.parse('https://' + serverHost + path));
+				r = await client.postUrl(Uri.parse(serverHost + path));
 			} else {
-				r = await client.getUrl(Uri.parse('https://' + serverHost + path));
+				r = await client.getUrl(Uri.parse(serverHost + path));
 			}
 
-			r.headers.set('Content-Type', 'application/json; charset=utf-8');
+      var strData = '';
+			if (data != null) {
+				strData = jsonEncode(data);
+			}
+			if (method == 'POST') {
+        r.headers.set('Content-Type', 'application/json; charset=utf-8');
+        r.headers.set('Content-Length', utf8.encode(strData).length);
+      }
 			if (tokens != null) {
 				r.headers.set('Authorization', tokens.accessToken);
 			}
@@ -161,10 +175,7 @@ Future _apiRequest(String method, String path, dynamic data,
 					r.headers.set(k, v);
 				});
 			}
-			var strData = '';
-			if (data != null) {
-				strData = jsonEncode(data);
-			}
+
 			r.write(strData);
 			var rp = await r.close();
 			var body = await rp.transform(utf8.decoder).join();