feat(sdk-core): generate Go account wallet

Ticket: CAAS-491

TICKET: CAAS-491

Author: Taseen08

examples/ts/create-go-account.ts

@@ -0,0 +1,67 @@
+/**
+ * Create a Go Account wallet at BitGo.
+ * This makes use of the convenience function generateWallet with type: 'trading'
+ *
+ * IMPORTANT: You must backup the encrypted private key and encrypted wallet passphrase!
+ *
+ * Copyright 2025, BitGo, Inc.  All Rights Reserved.
+ */
+
+import { BitGoAPI } from '@bitgo/sdk-api';
+import { coins } from 'bitgo';
+require('dotenv').config({ path: '../../.env' });
+
+const bitgo = new BitGoAPI({
+  accessToken: process.env.TESTNET_ACCESS_TOKEN,
+  env: 'test', // Change this to env: 'production' when you are ready for production
+});
+
+// Go Accounts use the 'ofc' (Off-Chain) coin
+const coin = 'ofc';
+bitgo.register(coin, coins.Ofc.createInstance);
+
+// TODO: set a label for your new Go Account here
+const label = 'Example Go Account Wallet';
+
+// TODO: set your passphrase for your new wallet here (encrypts the private key)
+const passphrase = 'go_account_wallet_passphrase';
+
+// TODO: set your passcode encryption code here (encrypts the passphrase itself)
+const passcodeEncryptionCode = 'encryption_code_for_passphrase';
+
+// TODO: set your enterprise ID for your new wallet here
+const enterprise = 'your_enterprise_id';
+
+async function main() {
+  const response = await bitgo.coin(coin).wallets().generateWallet({
+    label,
+    passphrase,
+    passcodeEncryptionCode,
+    enterprise,
+    type: 'trading', // Required for Go Accounts
+  });
+
+  // Type guard to ensure we got a Go Account response
+  if (!('userKeychain' in response)) {
+    throw new Error('Go account missing required user keychain');
+  }
+
+  const { wallet, userKeychain, encryptedWalletPassphrase } = response;
+
+  console.log(`Wallet ID: ${wallet.id()}`);
+
+  console.log('BACKUP THE FOLLOWING INFORMATION: ');
+  console.log('User Keychain:');
+  console.log(`Keychain ID: ${userKeychain.id}`);
+  console.log(`Public Key: ${userKeychain.pub}`);
+  console.log(`Encrypted Private Key: ${userKeychain.encryptedPrv}`);
+
+  console.log(`Encrypted Wallet Passphrase: ${encryptedWalletPassphrase}`);
+
+  // Create receive address for Go Account
+  const receiveAddress = await wallet.createAddress();
+  console.log('Go Account Receive Address:', receiveAddress.address);
+}
+
+main().catch((e) => console.error('Error creating Go Account:', e));
+

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

@@ -515,6 +515,51 @@ describe('V2 Wallets:', function () {
         params.passphrase
       );
     });
+
+    it('should generate Go Account wallet', async () => {
+      const ofcWallets = bitgo.coin('ofc').wallets();
+
+      const params: GenerateWalletOptions = {
+        label: 'Go Account Wallet',
+        passphrase: 'go_account_password',
+        enterprise: 'enterprise-id',
+        passcodeEncryptionCode: 'originalPasscodeEncryptionCode',
+        type: 'trading',
+      };
+
+      const keychainId = 'user_keychain_id';
+
+      // Mock keychain creation and upload
+      nock(bgUrl)
+        .post('/api/v2/ofc/key', function (body) {
+          body.should.have.property('encryptedPrv');
+          body.should.have.property('originalPasscodeEncryptionCode');
+          body.keyType.should.equal('independent');
+          body.source.should.equal('user');
+          return true;
+        })
+        .reply(200, { id: keychainId, pub: 'userPub', encryptedPrv: 'encryptedPrivateKey' });
+
+      // Mock wallet creation
+      const walletNock = nock(bgUrl)
+        .post('/api/v2/ofc/wallet/add', function (body) {
+          body.type.should.equal('trading');
+          body.m.should.equal(1);
+          body.n.should.equal(1);
+          body.keys.should.have.length(1);
+          body.keys[0].should.equal(keychainId);
+          return true;
+        })
+        .reply(200, { id: 'wallet123', keys: [keychainId] });
+
+      const response = await ofcWallets.generateWallet(params);
+
+      walletNock.isDone().should.be.true();
+
+      assert.ok(response.encryptedWalletPassphrase);
+      assert.ok(response.wallet);
+      assert.ok('userKeychain' in response);
+    });
   });
 
   describe('Generate TSS wallet:', function () {

modules/sdk-core/src/bitgo/baseCoin/iBaseCoin.ts

@@ -219,7 +219,7 @@ export interface SupplementGenerateWalletOptions {
   rootPrivateKey?: string;
   disableKRSEmail?: boolean;
   multisigType?: 'tss' | 'onchain' | 'blsdkg';
-  type: 'hot' | 'cold' | 'custodial' | 'advanced';
+  type: 'hot' | 'cold' | 'custodial' | 'advanced' | 'trading';
   subType?: 'lightningCustody' | 'lightningSelfCustody' | 'onPrem';
   coinSpecific?: { [coinName: string]: unknown };
   evmKeyRingReferenceWalletId?: string;

modules/sdk-core/src/bitgo/keychain/iKeychains.ts

@@ -46,6 +46,8 @@ export interface Keychain {
   coinSpecific?: { [coinName: string]: unknown };
   // Alternative encryptedPrv using webauthn and the prf extension
   webauthnDevices?: KeychainWebauthnDevice[];
+  // Ethereum address derived from xpub
+  ethAddress?: string;
 }
 
 export type OptionalKeychainEncryptedKey = Pick<Keychain, 'encryptedPrv' | 'webauthnDevices'>;

modules/sdk-core/src/bitgo/wallet/iWallets.ts

@@ -2,6 +2,7 @@ import * as t from 'io-ts';
 
 import { IRequestTracer } from '../../api';
 import { KeychainsTriplet, LightningKeychainsTriplet } from '../baseCoin';
+import { Keychain } from '../keychain';
 import { IWallet, PaginationOptions, WalletShare } from './iWallet';
 import { Wallet } from './wallet';
 
@@ -19,6 +20,14 @@ export interface LightningWalletWithKeychains extends LightningKeychainsTriplet
   encryptedWalletPassphrase?: string;
 }
 
+export interface GoAccountWalletWithUserKeychain {
+  responseType: 'GoAccountWalletWithUserKeychain';
+  wallet: IWallet;
+  userKeychain: Keychain;
+  warning?: string;
+  encryptedWalletPassphrase?: string;
+}
+
 export interface GetWalletOptions {
   allTokens?: boolean;
   reqId?: IRequestTracer;
@@ -68,7 +77,7 @@ export interface GenerateWalletOptions {
   isDistributedCustody?: boolean;
   bitgoKeyId?: string;
   commonKeychain?: string;
-  type?: 'hot' | 'cold' | 'custodial';
+  type?: 'hot' | 'cold' | 'custodial' | 'trading';
   subType?: 'lightningCustody' | 'lightningSelfCustody';
   evmKeyRingReferenceWalletId?: string;
 }
@@ -86,6 +95,19 @@ export const GenerateLightningWalletOptionsCodec = t.strict(
 
 export type GenerateLightningWalletOptions = t.TypeOf<typeof GenerateLightningWalletOptionsCodec>;
 
+export const GenerateGoAccountWalletOptionsCodec = t.strict(
+  {
+    label: t.string,
+    passphrase: t.string,
+    enterprise: t.string,
+    passcodeEncryptionCode: t.string,
+    type: t.literal('trading'),
+  },
+  'GenerateGoAccountWalletOptions'
+);
+
+export type GenerateGoAccountWalletOptions = t.TypeOf<typeof GenerateGoAccountWalletOptionsCodec>;
+
 export interface GetWalletByAddressOptions {
   address?: string;
   reqId?: IRequestTracer;
@@ -214,7 +236,9 @@ export interface IWallets {
   get(params?: GetWalletOptions): Promise<Wallet>;
   list(params?: ListWalletOptions): Promise<{ wallets: IWallet[] }>;
   add(params?: AddWalletOptions): Promise<any>;
-  generateWallet(params?: GenerateWalletOptions): Promise<WalletWithKeychains | LightningWalletWithKeychains>;
+  generateWallet(
+    params?: GenerateWalletOptions
+  ): Promise<WalletWithKeychains | LightningWalletWithKeychains | GoAccountWalletWithUserKeychain>;
   listShares(params?: Record<string, unknown>): Promise<any>;
   getShare(params?: { walletShareId?: string }): Promise<any>;
   updateShare(params?: UpdateShareOptions): Promise<any>;

modules/sdk-core/src/bitgo/wallet/wallets.ts

@@ -24,13 +24,16 @@ import {
   BulkUpdateWalletShareOptionsRequest,
   BulkUpdateWalletShareResponse,
   GenerateBaseMpcWalletOptions,
+  GenerateGoAccountWalletOptions,
+  GenerateGoAccountWalletOptionsCodec,
   GenerateLightningWalletOptions,
   GenerateLightningWalletOptionsCodec,
   GenerateMpcWalletOptions,
   GenerateSMCMpcWalletOptions,
   GenerateWalletOptions,
   GetWalletByAddressOptions,
   GetWalletOptions,
+  GoAccountWalletWithUserKeychain,
   IWallets,
   LightningWalletWithKeychains,
   ListWalletOptions,
@@ -47,7 +50,7 @@ import { createEvmKeyRingWallet, validateEvmKeyRingWalletParams } from '../evm/e
  * Check if a wallet is a WalletWithKeychains
  */
 export function isWalletWithKeychains(
-  wallet: WalletWithKeychains | LightningWalletWithKeychains
+  wallet: WalletWithKeychains | LightningWalletWithKeychains | GoAccountWalletWithUserKeychain
 ): wallet is WalletWithKeychains {
   return wallet.responseType === 'WalletWithKeychains';
 }
@@ -213,6 +216,59 @@ export class Wallets implements IWallets {
     };
   }
 
+  /**
+   * Generate a Go Account wallet
+   * @param params GenerateGoAccountWalletOptions
+   * @returns Promise<GoAccountWalletWithUserKeychain>
+   */
+  private async generateGoAccountWallet(
+    params: GenerateGoAccountWalletOptions
+  ): Promise<GoAccountWalletWithUserKeychain> {
+    const reqId = new RequestTracer();
+    this.bitgo.setRequestTracer(reqId);
+
+    const { label, passphrase, enterprise, passcodeEncryptionCode } = params;
+    console.log('generateGoAccountWallet', params);
+
+    const keychain = this.baseCoin.keychains().create();
+
+    const keychainParams: AddKeychainOptions = {
+      pub: keychain.pub,
+      encryptedPrv: this.bitgo.encrypt({ password: passphrase, input: keychain.prv }),
+      originalPasscodeEncryptionCode: passcodeEncryptionCode,
+      keyType: 'independent',
+      source: 'user',
+    };
+
+    const userKeychain = await this.baseCoin.keychains().add(keychainParams);
+
+    const walletParams: SupplementGenerateWalletOptions = {
+      label,
+      m: 1,
+      n: 1,
+      type: 'trading',
+      enterprise,
+      keys: [userKeychain.id],
+    };
+    console.log('walletParams', walletParams);
+
+    const newWallet = await this.bitgo.post(this.baseCoin.url('/wallet/add')).send(walletParams).result();
+    const wallet = new Wallet(this.bitgo, this.baseCoin, newWallet);
+
+    const result: GoAccountWalletWithUserKeychain = {
+      wallet,
+      userKeychain,
+      responseType: 'GoAccountWalletWithUserKeychain',
+    };
+
+    // Add warning if the user keychain has an encrypted private key
+    if (!_.isUndefined(userKeychain.encryptedPrv)) {
+      result.warning = 'Be sure to backup the user keychain -- it is not stored anywhere else!';
+    }
+
+    return result;
+  }
+
   /**
    * Generate a new wallet
    * 1. Creates the user keychain locally on the client, and encrypts it with the provided passphrase
@@ -246,7 +302,7 @@ export class Wallets implements IWallets {
    */
   async generateWallet(
     params: GenerateWalletOptions = {}
-  ): Promise<WalletWithKeychains | LightningWalletWithKeychains> {
+  ): Promise<WalletWithKeychains | LightningWalletWithKeychains | GoAccountWalletWithUserKeychain> {
     // Assign the default multiSig type value based on the coin
     if (!params.multisigType) {
       params.multisigType = this.baseCoin.getDefaultMultisigType();
@@ -270,6 +326,26 @@ export class Wallets implements IWallets {
       return walletData;
     }
 
+    // Go Account wallet generation
+    if (this.baseCoin.getFamily() === 'ofc' && params.type === 'trading') {
+      console.log('generateWallet Go Account wallet');
+      const options = decodeOrElse(
+        GenerateGoAccountWalletOptionsCodec.name,
+        GenerateGoAccountWalletOptionsCodec,
+        params,
+        (errors) => {
+          throw new Error(`error(s) parsing generate go account request params: ${errors}`);
+        }
+      );
+
+      const walletData = await this.generateGoAccountWallet(options);
+      walletData.encryptedWalletPassphrase = this.bitgo.encrypt({
+        input: options.passphrase,
+        password: options.passcodeEncryptionCode,
+      });
+      return walletData;
+    }
+
     common.validateParams(params, ['label'], ['passphrase', 'userKey', 'backupXpub']);
     if (typeof params.label !== 'string') {
       throw new Error('missing required string parameter label');