fix(core): update

ts/index.ts

@@ -1,16 +1,22 @@
-import * as plugins from './webrequest.plugins';
+import * as plugins from './webrequest.plugins.js';
 
 /**
  * web request
  */
 export class WebRequest {
-  private static polyfillsLoaded = false;
-  public static loadNeededPolyfills() {
-    const smartenv = new plugins.smartenv.Smartenv();
-    if (!smartenv.isBrowser && !this.polyfillsLoaded) {
-      this.polyfillsLoaded = true;
-      globalThis.fetch = smartenv.getSafeNodeModule('node-fetch');
+  private static polyfillStatusEvaluated = false;
+  private static neededPolyfillsLoadedDeferred = plugins.smartpromise.defer();
+  public static async loadNeededPolyfills() {
+    if (this.polyfillStatusEvaluated) {
+      return this.neededPolyfillsLoadedDeferred.promise;
     }
+    this.polyfillStatusEvaluated = true;
+    const smartenv = new plugins.smartenv.Smartenv();
+    if (!smartenv.isBrowser) {
+      this.polyfillStatusEvaluated = true;
+      await smartenv.getSafeNodeModule('node-fetch');
+    }
+    this.neededPolyfillsLoadedDeferred.resolve();
   }
 
   constructor() {
@@ -18,6 +24,7 @@ export class WebRequest {
   }
 
   public async getJson(urlArg: string | string[]) {
+    await WebRequest.neededPolyfillsLoadedDeferred.promise;
     const response: Response = await this.request(urlArg, {
       method: 'GET',
     });
@@ -30,6 +37,7 @@ export class WebRequest {
    * postJson
    */
   public async postJson(urlArg: string, requestBody?: any) {
+    await WebRequest.neededPolyfillsLoadedDeferred.promise;
     const response: Response = await this.request(urlArg, {
       body: plugins.smartjson.stringify(requestBody),
       method: 'POST',
@@ -43,6 +51,7 @@ export class WebRequest {
    * put js
    */
   public async putJson(urlArg: string, requestBody?: any) {
+    await WebRequest.neededPolyfillsLoadedDeferred.promise;
     const response: Response = await this.request(urlArg, {
       body: plugins.smartjson.stringify(requestBody),
       method: 'PUT',
@@ -56,6 +65,7 @@ export class WebRequest {
    * put js
    */
   public async deleteJson(urlArg: string) {
+    await WebRequest.neededPolyfillsLoadedDeferred.promise;
     const response: Response = await this.request(urlArg, {
       method: 'GET',
     });
@@ -75,6 +85,7 @@ export class WebRequest {
       headers?: HeadersInit;
     }
   ): Promise<Response> {
+    await WebRequest.neededPolyfillsLoadedDeferred.promise;
     let allUrls: string[];
     let usedUrlIndex = 0;