Use JSON.stringify() for pure object in STP._string

README.md

@@ -608,6 +608,8 @@ interface Task {
 This tool only supports `application/json` type for request and response body. Any other type like `multipart/form` or `image/*` are **not supported** and will be ignored.
 
 ## Versions
+#### 2.1.3
+- Use `JSON.stringify()` for pure object in `STP._string`
 #### 2.1.2
 - Fix axios query of array type in IClientAPI (add `{arrayFormat: 'repeat'}`)
 #### 2.1.1

dist/utils/StrictTypeParser.js

@@ -19,6 +19,7 @@ exports.StrictTypeParser = void 0;
 var FullDate_1 = require("./FullDate");
 var StrictTypeParser;
 (function (StrictTypeParser) {
+    var toStringDefault = {}.toString;
     var BadValueError = /** @class */ (function (_super) {
         __extends(BadValueError, _super);
         function BadValueError(label, message) {
@@ -69,8 +70,11 @@ var StrictTypeParser;
     function _string(x, label) {
         if (typeof x === 'string')
             return x;
-        if (typeof x === 'object')
-            return x.toString();
+        if (typeof x === 'object') {
+            return x.toString === toStringDefault ?
+                JSON.stringify(x) : // pure object => JSON
+                x.toString();
+        }
         throw new BadTypeError(label, 'string', x);
     }
     StrictTypeParser._string = _string;

lib/utils/StrictTypeParser.ts

@@ -1,6 +1,7 @@
 import {FullDate} from './FullDate';
 
 export module StrictTypeParser {
+  const toStringDefault = {}.toString;
   export class BadValueError extends Error {
     constructor(public label: string, message: string) {
       super(message);
@@ -35,7 +36,11 @@ export module StrictTypeParser {
   }
   export function _string(x: any, label: string): string {
     if (typeof x === 'string') return x;
-    if (typeof x === 'object') return x.toString();
+    if (typeof x === 'object') {
+      return x.toString === toStringDefault ?
+        JSON.stringify(x) : // pure object => JSON
+        x.toString();
+    }
     throw new BadTypeError(label, 'string', x);
   }
   export function _boolean(x: any, label: string): boolean {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@sup39/api-ts-gen",
-  "version": "2.1.2",
+  "version": "2.1.3",
   "description": "OpenAPI code generator for TypeScript",
   "main": "dist/lib/index.js",
   "types": "dist/lib/index.d.ts",