feat(bitgo): add method to fetch and register all the assets from AMS

Ticket: WIN-5839

Author: veetragjain

modules/bitgo/src/bitgo.ts

@@ -68,12 +68,25 @@ export class BitGo extends BitGoAPI {
    * @param tokenConfigMap - A map of token metadata from AMS
    */
   initCoinFactory(tokenConfigMap: Record<string, TrimmedAmsTokenConfig[]>): void {
-    // TODO(WIN-5839): use AMS endpoint to fetch config details
     const coinMap = createTokenMapUsingTrimmedConfigDetails(tokenConfigMap);
     this._coinFactory = new CoinFactory();
     registerCoinConstructors(this._coinFactory, coinMap);
   }
 
+  /**
+   * Fetch all the tokens and initialize the coin factory
+   */
+  async registerAllTokens(): Promise<void> {
+    if (!this._useAms) {
+      throw new Error('registerAllTokens is only supported when useAms is set to true');
+    }
+    // Fetch mainnet assets for prod and adminProd environments, testnet assets for all other environments
+    const assetEnvironment = ['prod', 'adminProd'].includes(this.getEnv()) ? 'mainnet' : 'testnet';
+    const url = this.url(`/assets/list/${assetEnvironment}`);
+    const tokenConfigMap = (await this.executeAssetRequest(url)) as Record<string, TrimmedAmsTokenConfig[]>;
+    this.initCoinFactory(tokenConfigMap);
+  }
+
   /**
    * Create a basecoin object
    * @param coinName

modules/bitgo/test/v2/unit/ams/ams.ts

@@ -47,6 +47,18 @@ describe('Asset metadata service', () => {
     coin.tokenContractAddress.should.equal('0x89a959b9184b4f8c8633646d5dfd049d2ebc983a');
   });
 
+  it('should fetch all assets from AMS and initialize the coin factory', async () => {
+    const bitgo = TestBitGo.decorate(BitGo, { env: 'mock', microservicesUri, useAms: true } as BitGoOptions);
+    bitgo.initializeTestVars();
+
+    // Setup nocks
+    nock(microservicesUri).get('/api/v1/assets/list/testnet').reply(200, reducedAmsTokenConfig);
+
+    await bitgo.registerAllTokens();
+    const coin = bitgo.coin('hteth:faketoken');
+    should.exist(coin);
+  });
+
   describe('registerToken', () => {
     it('should throw an error when useAms is false', async () => {
       const bitgo = TestBitGo.decorate(BitGo, { env: 'mock', microservicesUri, useAms: false } as BitGoOptions);