feat(express): migrate getlightningstate to typed routes

TICKET: WP-5447

Author: danielzhao122

modules/express/src/clientRoutes.ts

@@ -1590,6 +1590,7 @@ export function setupAPIRoutes(app: express.Application, config: Config): void {
   );
 
   router.post('express.v1.wallet.signTransaction', [prepareBitGo(config), typedPromiseWrapper(handleSignTransaction)]);
+  router.get('express.lightning.getState', [prepareBitGo(config), typedPromiseWrapper(handleGetLightningWalletState)]);
 
   app.post('/api/v1/wallet/:id/simpleshare', parseBody, prepareBitGo(config), promiseWrapper(handleShareWallet));
   router.post('express.v1.wallet.acceptShare', [prepareBitGo(config), typedPromiseWrapper(handleAcceptShare)]);
@@ -1808,5 +1809,4 @@ export function setupLightningSignerNodeRoutes(app: express.Application, config:
     prepareBitGo(config),
     promiseWrapper(handleUnlockLightningWallet)
   );
-  app.get('/api/v2/:coin/wallet/:id/state', prepareBitGo(config), promiseWrapper(handleGetLightningWalletState));
 }

modules/express/src/lightning/lightningSignerRoutes.ts

@@ -187,15 +187,13 @@ export async function handleCreateSignerMacaroon(req: express.Request): Promise<
 /**
  * Handle the request to get the state of a wallet from the signer.
  */
-export async function handleGetLightningWalletState(req: express.Request): Promise<GetWalletStateResponse> {
-  const coinName = req.params.coin;
+export async function handleGetLightningWalletState(
+  req: import('../typedRoutes/api').ExpressApiRouteRequest<'express.lightning.getState', 'get'>
+): Promise<GetWalletStateResponse> {
+  const { coin: coinName, walletId } = req.decoded;
   if (!isLightningCoinName(coinName)) {
     throw new ApiResponseError(`Invalid coin to get lightning wallet state: ${coinName}`, 400);
   }
-  const walletId = req.params.id;
-  if (typeof walletId !== 'string') {
-    throw new ApiResponseError(`Invalid wallet id: ${walletId}`, 400);
-  }
 
   const lndSignerClient = await LndSignerClient.create(walletId, req.config);
   return await lndSignerClient.getWalletState();

modules/express/src/typedRoutes/api/index.ts

@@ -12,6 +12,7 @@ import { PostAcceptShare } from './v1/acceptShare';
 import { PostSimpleCreate } from './v1/simpleCreate';
 import { PutPendingApproval } from './v1/pendingApproval';
 import { PostSignTransaction } from './v1/signTransaction';
+import { GetLightningState } from './v2/lightningState';
 
 export const ExpressApi = apiSpec({
   'express.ping': {
@@ -44,6 +45,9 @@ export const ExpressApi = apiSpec({
   'express.v1.wallet.signTransaction': {
     post: PostSignTransaction,
   },
+  'express.lightning.getState': {
+    get: GetLightningState,
+  },
 });
 
 export type ExpressApi = typeof ExpressApi;

modules/express/src/typedRoutes/api/v2/lightningState.ts

@@ -0,0 +1,35 @@
+import * as t from 'io-ts';
+import { httpRoute, httpRequest } from '@api-ts/io-ts-http';
+import { BitgoExpressError } from '../../schemas/error';
+import { WalletState } from '../../../lightning/codecs';
+
+/**
+ * Path parameters for getting lightning node state
+ * @property {string} coin - A lightning coin name (e.g., lnbtc or tlnbtc)
+ * @property {string} walletId - The ID of the lightning self-custody wallet
+ */
+export const LightningStateParams = {
+  coin: t.string,
+  walletId: t.string,
+};
+
+/**
+ * Lightning - Get node state
+ *
+ * This is only used for self-custody lightning. Get the current state of the lightning node.
+ *
+ * @operationId express.lightning.getState
+ */
+export const GetLightningState = httpRoute({
+  method: 'GET',
+  path: '/api/v2/{coin}/wallet/{walletId}/state',
+  request: httpRequest({
+    params: LightningStateParams,
+  }),
+  response: {
+    200: t.type({
+      state: WalletState,
+    }),
+    400: BitgoExpressError,
+  },
+});

modules/express/test/unit/clientRoutes/lightning/lightningSignerRoutes.ts

@@ -153,11 +153,16 @@ describe('Lightning signer routes', () => {
       params: {
         coin: 'tlnbtc',
         id: apiData.wallet.id,
+        walletId: apiData.wallet.id,
+      },
+      decoded: {
+        coin: 'tlnbtc',
+        walletId: apiData.wallet.id,
       },
       config: {
         lightningSignerFileSystemPath: 'lightningSignerFileSystemPath',
       },
-    } as unknown as express.Request;
+    } as any;
 
     await handleGetLightningWalletState(req);
 

modules/express/test/unit/typedRoutes/decode.ts

@@ -5,6 +5,7 @@ import { EncryptRequestBody } from '../../../src/typedRoutes/api/common/encrypt'
 import { LoginRequest } from '../../../src/typedRoutes/api/common/login';
 import { VerifyAddressBody } from '../../../src/typedRoutes/api/common/verifyAddress';
 import { SimpleCreateRequestBody } from '../../../src/typedRoutes/api/v1/simpleCreate';
+import { LightningStateParams } from '../../../src/typedRoutes/api/v2/lightningState';
 
 export function assertDecode<T>(codec: t.Type<T, unknown>, input: unknown): T {
   const result = codec.decode(input);
@@ -100,4 +101,10 @@ describe('io-ts decode tests', function () {
       passphrase: 'pass',
     });
   });
+  it('express.lightning.getState params valid', function () {
+    assertDecode(t.type(LightningStateParams), { coin: 'lnbtc', walletId: 'wallet123' });
+  });
+  it('express.lightning.getState params invalid', function () {
+    assert.throws(() => assertDecode(t.type(LightningStateParams), { coin: 'lnbtc' }));
+  });
 });