feat(sdk-coin-icp): Consume payload api added

TICKET: WIN-4248

modules/sdk-coin-icp/package.json

@@ -47,7 +47,8 @@
     "@dfinity/candid": "^2.2.0",
     "@dfinity/principal": "^2.2.0",
     "crc-32": "^1.2.2",
-    "elliptic": "^6.6.1"
+    "elliptic": "^6.6.1",
+    "superagent": "^10.1.1"
   },
   "devDependencies": {
     "@bitgo/sdk-api": "^1.58.5",

modules/sdk-coin-icp/src/icp.ts

@@ -17,6 +17,8 @@ import utils from './lib/utils';
 import { IcpTransaction } from './lib/iface';
 import request from 'superagent';
 
+const PAYLOADS_API_PATH = '/construction/payloads';
+
 /**
  * Class representing the Internet Computer (ICP) coin.
  * Extends the BaseCoin class and provides specific implementations for ICP.
@@ -125,16 +127,14 @@ export class Icp extends BaseCoin {
   }
 
   /** @inheritDoc **/
-  getPublicNodeUrl(): string {
+  public getPublicNodeUrl(): string {
     return Environments[this.bitgo.getEnv()].rosettaNodeURL;
   }
 
-  async consumePayloadsApi(payload: IcpTransaction): Promise<any> {
+  public async consumePayloadsApi(payload: IcpTransaction): Promise<request.Response> {
     try {
-      const apiUrl = this.getPublicNodeUrl();
-      const response = await request.post(apiUrl).send(payload).set(utils.getHeaders());
-
-      return response.body;
+      const apiUrl = this.getPublicNodeUrl() + PAYLOADS_API_PATH;
+      return await request.post(apiUrl).send(payload).set(utils.getHeaders());
     } catch (error) {
       throw new Error(`Error consuming Payloads API: ${error.message || error}`);
     }

modules/sdk-coin-icp/src/lib/utils.ts

@@ -5,7 +5,6 @@ import * as agent from '@dfinity/agent';
 import crypto from 'crypto';
 import crc32 from 'crc-32';
 import { IcpNetworkIdentifier } from './iface';
-
 const Secp256k1Curve = new elliptic.ec('secp256k1');
 
 export class Utils implements BaseUtils {