chore: build message sample script

TICKET: COIN-4593

Author: bhavidhingra

examples/ts/build-message.ts

@@ -0,0 +1,38 @@
+/**
+ * Pre-build a message from the wallet
+ *
+ * This tool will help you see how to use the BitGo API to easily build
+ * a message from a wallet.
+ *
+ * Copyright 2025, BitGo, Inc.  All Rights Reserved.
+ */
+
+import {BitGoAPI} from '@bitgo/sdk-api';
+import {Hteth} from "@bitgo/sdk-coin-eth";
+import {MessageStandardType} from "@bitgo/sdk-core"; // Replace with your given coin (e.g. Ltc, Tltc)
+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
+});
+
+// Set the coin name to match the blockchain and network
+// doge = dogecoin, tdoge = testnet dogecoin
+const coin = 'hteth';
+bitgo.register(coin, Hteth.createInstance);
+
+const id = '';
+
+async function main() {
+  const wallet = await bitgo.coin(coin).wallets().get({ id });
+  console.log(`Wallet label: ${wallet.label()}`);
+
+  const txRequest = await wallet.createSignMessageRequest({
+    messageRaw: 'Hello, BitGo!',
+    messageStandardType: MessageStandardType.EIP191,
+  });
+  console.dir(txRequest);
+}
+
+main().catch((e) => console.log(e));

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

@@ -14,7 +14,7 @@ import { IWebhooks } from '../webhook/iWebhooks';
 import { TransactionType } from '../../account-lib';
 import { IInscriptionBuilder } from '../inscriptionBuilder';
 import { Hash } from 'crypto';
-import { MPCTx, PopulatedIntent, TokenType } from '../utils';
+import { MessageStandardType, MPCTx, PopulatedIntent, TokenType } from '../utils';
 
 export const multisigTypes = {
   onchain: 'onchain',
@@ -301,6 +301,7 @@ export interface TransactionPrebuild extends BaseSignable {
 export interface Message extends BaseSignable {
   messageRaw: string;
   messageEncoded?: string;
+  messageStandardType?: MessageStandardType;
 }
 
 export interface MessageTypeProperty {
@@ -418,6 +419,7 @@ export interface SignedMessage {
   signature: string;
   messageRaw: string;
   messageEncoded?: string;
+  messageStandardType?: MessageStandardType;
   txRequestId: string;
 }
 

modules/sdk-core/src/bitgo/utils/tss/baseTSSUtils.ts

@@ -1,4 +1,5 @@
 import { IRequestTracer } from '../../../api';
+import * as openpgp from 'openpgp';
 import { Key, readKey, SerializedKeyPair } from 'openpgp';
 import { IBaseCoin, KeychainsTriplet } from '../../baseCoin';
 import { BitGoBase } from '../../bitgoBase';
@@ -10,40 +11,40 @@ import * as _ from 'lodash';
 import {
   BitgoGPGPublicKey,
   BitgoHeldBackupKeyShare,
+  CommitmentShareRecord,
+  CreateBitGoKeychainParamsBase,
+  CreateKeychainParamsBase,
+  CustomCommitmentGeneratingFunction,
   CustomGShareGeneratingFunction,
+  CustomKShareGeneratingFunction,
+  CustomMPCv2SigningRound1GeneratingFunction,
+  CustomMPCv2SigningRound2GeneratingFunction,
+  CustomMPCv2SigningRound3GeneratingFunction,
+  CustomMuDeltaShareGeneratingFunction,
+  CustomPaillierModulusGetterFunction,
   CustomRShareGeneratingFunction,
+  CustomSShareGeneratingFunction,
+  EncryptedSignerShareRecord,
+  IntentOptionsForMessage,
+  IntentOptionsForTypedData,
   ITssUtils,
+  PopulatedIntentForMessageSigning,
+  PopulatedIntentForTypedDataSigning,
   PrebuildTransactionWithIntentOptions,
+  RequestType,
   SignatureShareRecord,
   TSSParams,
-  TxRequest,
-  TxRequestVersion,
-  CreateKeychainParamsBase,
-  IntentOptionsForMessage,
-  PopulatedIntentForMessageSigning,
-  IntentOptionsForTypedData,
-  PopulatedIntentForTypedDataSigning,
-  CreateBitGoKeychainParamsBase,
-  CommitmentShareRecord,
-  EncryptedSignerShareRecord,
-  CustomCommitmentGeneratingFunction,
   TSSParamsForMessage,
-  RequestType,
-  CustomPaillierModulusGetterFunction,
-  CustomKShareGeneratingFunction,
-  CustomMuDeltaShareGeneratingFunction,
-  CustomSShareGeneratingFunction,
-  CustomMPCv2SigningRound1GeneratingFunction,
-  CustomMPCv2SigningRound2GeneratingFunction,
-  CustomMPCv2SigningRound3GeneratingFunction,
   TSSParamsWithPrv,
+  TxRequest,
+  TxRequestVersion,
 } from './baseTypes';
 import { GShare, SignShare } from '../../../account-lib/mpc/tss';
 import { RequestTracer } from '../util';
-import * as openpgp from 'openpgp';
 import { envRequiresBitgoPubGpgKeyConfig, getBitgoMpcGpgPubKey } from '../../tss/bitgoPubKeys';
 import { getBitgoGpgPubKey } from '../opengpgUtils';
 import assert from 'assert';
+import { MessageStandardType } from '../messageTypes';
 
 /**
  * BaseTssUtil class which different signature schemes have to extend
@@ -356,6 +357,7 @@ export default class BaseTssUtils<KeyShare> extends MpcUtils implements ITssUtil
 
   /**
    * Create a tx request from params for message signing
+   * @deprecated Use createSignMessageRequest instead
    *
    * @param params
    * @param apiVersion
@@ -402,7 +404,7 @@ export default class BaseTssUtils<KeyShare> extends MpcUtils implements ITssUtil
       memo: params.memo?.value,
       isTss: params.isTss,
       messageRaw: params.messageRaw,
-      messageStandardType: params.messageStandardType,
+      messageStandardType: params.messageStandardType ?? MessageStandardType.UNKNOWN,
       messageEncoded: params.messageEncoded ?? '',
     };
 

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

@@ -3616,28 +3616,35 @@ export class Wallet implements IWallet {
     try {
       let txRequest;
       assert(params.message, 'message required for message signing');
+      const messageRaw = params.message.messageRaw;
+
       if (!params.message.txRequestId) {
         const intentOption: IntentOptionsForMessage = {
           custodianMessageId: params.custodianMessageId,
           reqId: params.reqId,
           intentType: 'signMessage',
           isTss: true,
-          messageRaw: params.message.messageRaw,
-          messageEncoded: params.message.messageEncoded,
+          messageRaw,
         };
-        txRequest = await this.tssUtils!.createTxRequestWithIntentForMessageSigning(intentOption);
+        txRequest = await this.tssUtils!.createSignMessageRequest(intentOption);
         params.message.txRequestId = txRequest.txRequestId;
       } else {
         txRequest = await getTxRequest(this.bitgo, this.id(), params.message.txRequestId, params.reqId);
       }
 
+      assert(
+        txRequest.messages && txRequest.messages.length > 0,
+        'Unable to find messages in txRequest for message signing'
+      );
+      const messageEncoded = txRequest.messages[0].messageEncoded;
+
       const signedMessageRequest = await this.tssUtils!.signTxRequestForMessage({
         txRequest,
         prv: params.prv,
         reqId: params.reqId || new RequestTracer(),
-        messageRaw: params.message.messageRaw,
-        messageEncoded: params.message.messageEncoded,
-        bufferToSign: Buffer.from(params.message.messageEncoded ?? '', 'hex'),
+        messageRaw,
+        messageEncoded,
+        bufferToSign: Buffer.from(messageEncoded, 'hex'),
       });
       assert(signedMessageRequest.messages, 'Unable to find messages in signedMessageRequest');
       assert(
@@ -3649,8 +3656,8 @@ export class Wallet implements IWallet {
         coin: this.coin(),
         txHash: signedMessageRequest.messages[0].txHash,
         signature: signedMessageRequest.messages[0].txHash,
-        messageRaw: params.message?.messageRaw,
-        messageEncoded: params.message?.messageEncoded,
+        messageRaw,
+        messageEncoded,
         txRequestId: signedMessageRequest.txRequestId,
       };
     } catch (e) {