replaced sync-group api redirect response with 200s and 201s

internal/server/response/status.go

@@ -23,6 +23,22 @@ func Status(code int) Response {
 	}
 }
 
+func StatusOK() Response {
+	return Status(http.StatusOK)
+}
+
+func StatusCreated() Response {
+	return Status(http.StatusCreated)
+}
+
+func StatusAccepted() Response {
+	return Status(http.StatusAccepted)
+}
+
+func StatusNoContent() Response {
+	return Status(http.StatusNoContent)
+}
+
 func (s statusRes) String() string {
 	if s.res != nil {
 		return fmt.Sprintf(`{"status": %d, "nested": %s}`, s.code, s.res)