fix: honor configured WBGL bridge endpoint

src/__tests__/WBGLEndpoint.test.ts

@@ -0,0 +1,78 @@
+import fetch from 'node-fetch';
+import { ethers } from 'ethers';
+
+import { ChaindIds, ChainNames } from '../chains';
+import { WBGL } from '../bridge/WBGL';
+
+jest.mock('node-fetch', () => jest.fn());
+
+const mockedFetch = fetch as unknown as jest.Mock;
+
+describe('WBGL bridge endpoint configuration', () => {
+  const createWbgl = (bridgeEndpoint?: string) => {
+    const wbgl = new WBGL({
+      evmPrivateKey: `0x${'1'.repeat(64)}`,
+      provider: new ethers.providers.JsonRpcProvider(),
+      chainName: ChainNames.BNBSmartChain,
+      chainId: ChaindIds.BNBSmartChain,
+      bridgeEndpoint,
+      bglPrivateKeyOrSeed: 'unused-for-wbgl',
+    });
+
+    jest
+      .spyOn(
+        wbgl as unknown as { _sendWbgl: () => Promise<unknown> },
+        '_sendWbgl',
+      )
+      .mockResolvedValue({
+        transactionHash: '0xabc',
+        wbglBalance: '10',
+        balance: '1',
+      });
+
+    return wbgl;
+  };
+
+  const submitSwap = async (wbgl: WBGL) =>
+    wbgl.swapWBGLforBGL({
+      bglAddress: 'bgl1qh3tsz3a7l3m49xaq4xcdx8aefthchuqagmspcn',
+      to: '0x0000000000000000000000000000000000000001',
+      wbglAmount: 5,
+    });
+
+  beforeEach(() => {
+    mockedFetch.mockResolvedValue({
+      json: jest.fn().mockResolvedValue({
+        address: '0x0000000000000000000000000000000000000001',
+      }),
+    });
+  });
+
+  afterEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it.each([
+    ['https://bridge.example.test/app/'],
+    ['https://bridge.example.test/app'],
+  ])(
+    'submits WBGL swaps to the configured bridge endpoint %s',
+    async (bridgeEndpoint) => {
+      await submitSwap(createWbgl(bridgeEndpoint));
+
+      expect(mockedFetch).toHaveBeenCalledWith(
+        'https://bridge.example.test/app/submit/wbgl',
+        expect.objectContaining({ method: 'POST' }),
+      );
+    },
+  );
+
+  it('uses the production default when the bridge endpoint is empty', async () => {
+    await submitSwap(createWbgl(''));
+
+    expect(mockedFetch).toHaveBeenCalledWith(
+      'https://bglswap.com/app/submit/wbgl',
+      expect.objectContaining({ method: 'POST' }),
+    );
+  });
+});

src/bridge/WBGL.ts

@@ -33,6 +33,11 @@ export interface WBGLBGLExchangePairResult {
 }
 
 type Provider = ethers.providers.JsonRpcProvider | ethers.providers.Web3Provider
+const DEFAULT_BRIDGE_ENDPOINT = 'https://bglswap.com/app/'
+
+const normalizeBridgeEndpoint = (endpoint: string): string => (
+  endpoint.endsWith('/') ? endpoint : `${endpoint}/`
+)
 
 export class WBGL {
 
@@ -42,13 +47,14 @@ export class WBGL {
   private readonly provider: Provider
   private readonly chainId: number | string | ChaindIds
   private readonly chainName: string
-  private readonly bridgeEndpoint = 'https://bglswap.com/app/'
+  private readonly bridgeEndpoint: string
   private readonly evmPrivateKey: string
 
   constructor(config: IBridgeConfig) {
     this.provider = config.provider
     this.chainId = config.chainId
     this.chainName = config.chainName
+    this.bridgeEndpoint = normalizeBridgeEndpoint(config.bridgeEndpoint || DEFAULT_BRIDGE_ENDPOINT)
     this.evmPrivateKey = config.evmPrivateKey
   }
 
@@ -177,4 +183,3 @@ export class WBGL {
   } /// END OF PRIVATE METHODS
 
 }
-