Merge pull request #975 from 0xProject/feature/contract-wrappers/executeTransaction

[Contract-wrappers] Exchange execute transaction encoder

1 files changed, 11 insertions, 0 deletions

diff --git a/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts b/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts
index 48bd00f90..5a4b40547 100644
--- a/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts
+++ b/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts
@@ -21,6 +21,7 @@ import {
 } from '../types';
 import { assert } from '../utils/assert';
 import { decorators } from '../utils/decorators';
+import { TransactionEncoder } from '../utils/transaction_encoder';
 
 import { ContractWrapper } from './contract_wrapper';
 import { ExchangeContract, ExchangeEventArgs, ExchangeEvents } from './generated/exchange';
@@ -1097,6 +1098,16 @@ export class ExchangeWrapper extends ContractWrapper {
         const zrxAssetData = assetDataUtils.encodeERC20AssetData(zrxTokenAddress);
         return zrxAssetData;
     }
+    /**
+     * Returns a Transaction Encoder. Transaction messages exist for the purpose of calling methods on the Exchange contract
+     * in the context of another address.
+     * @return TransactionEncoder
+     */
+    public async transactionEncoderAsync(): Promise<TransactionEncoder> {
+        const exchangeInstance = await this._getExchangeContractAsync();
+        const encoder = new TransactionEncoder(exchangeInstance);
+        return encoder;
+    }
     // tslint:disable:no-unused-variable
     private _invalidateContractInstances(): void {
         this.unsubscribeAll();