Merge pull request #279 from Bucko13/check-for-id-param

check in http client that an id is passed to create wallet

lib/http/client.js

@@ -6,7 +6,7 @@
  */
 
 'use strict';
-
+const assert = require('assert');
 const Network = require('../protocol/network');
 const AsyncObject = require('../utils/asyncobject');
 const RPCClient = require('./rpcclient');
@@ -493,6 +493,7 @@ HTTPClient.prototype.getWallets = function getWallets() {
  */
 
 HTTPClient.prototype.createWallet = function createWallet(options) {
+  assert(options.id, 'Must pass an id parameter')
   return this._put(`/wallet/${options.id}`, options);
 };