From f04eba77736a429bea19a4544cfbabc38069d04d Mon Sep 17 00:00:00 2001
From: Steve Klebanoff <steve.klebanoff@gmail.com>
Date: Thu, 25 Oct 2018 14:44:25 -0700
Subject: Added string to constants

---
 packages/instant/src/components/buy_button.tsx | 3 ++-
 packages/instant/src/constants.ts              | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

(limited to 'packages/instant/src')

diff --git a/packages/instant/src/components/buy_button.tsx b/packages/instant/src/components/buy_button.tsx
index 6fe333dc7..a7a22e3bc 100644
--- a/packages/instant/src/components/buy_button.tsx
+++ b/packages/instant/src/components/buy_button.tsx
@@ -2,6 +2,7 @@ import { AssetBuyer, AssetBuyerError, BuyQuote } from '@0x/asset-buyer';
 import * as _ from 'lodash';
 import * as React from 'react';
 
+import { WEB_3_WRAPPER_TRANSACTION_FAILED_ERROR_MSG_PREFIX } from '../constants';
 import { ColorOption } from '../style/theme';
 import { util } from '../util/util';
 import { web3Wrapper } from '../util/web3_wrapper';
@@ -62,7 +63,7 @@ export class BuyButton extends React.Component<BuyButtonProps> {
         try {
             await web3Wrapper.awaitTransactionSuccessAsync(txHash);
         } catch (e) {
-            if (e instanceof Error && e.message.startsWith('Transaction failed')) {
+            if (e instanceof Error && e.message.startsWith(WEB_3_WRAPPER_TRANSACTION_FAILED_ERROR_MSG_PREFIX)) {
                 this.props.onBuyFailure(buyQuote, txHash);
                 return;
             }
diff --git a/packages/instant/src/constants.ts b/packages/instant/src/constants.ts
index 31491c80a..48d0d4aa2 100644
--- a/packages/instant/src/constants.ts
+++ b/packages/instant/src/constants.ts
@@ -2,3 +2,4 @@ import { BigNumber } from '@0x/utils';
 export const BIG_NUMBER_ZERO = new BigNumber(0);
 export const ethDecimals = 18;
 export const DEFAULT_ZERO_EX_CONTAINER_SELECTOR = '#zeroExInstantContainer';
+export const WEB_3_WRAPPER_TRANSACTION_FAILED_ERROR_MSG_PREFIX = 'Transaction failed';
-- 
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