From cc86e5112e0d8bcaa0edb0929750bc2b51b848af Mon Sep 17 00:00:00 2001
From: Pedro Pombeiro <pombeirp@users.noreply.github.com>
Date: Tue, 20 Mar 2018 11:44:59 +0100
Subject: [PATCH] Ensure private key starts with `0x`

---
 bot/index.js      | 3 +++
 config/default.js | 4 ++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/bot/index.js b/bot/index.js
index 5b01b9c..66cafb6 100644
--- a/bot/index.js
+++ b/bot/index.js
@@ -91,6 +91,9 @@ async function sendTransaction (to, amount, gasPrice) {
   if (isNaN(amount)) {
     throw Error('Invalid amount')
   }
+  if (!config.privateKey.startsWith('0x')) {
+    throw Error('Private key should start with 0x')
+  }
 
   let transaction = null
   let hash = null
diff --git a/config/default.js b/config/default.js
index 38cde2f..88c3ee7 100644
--- a/config/default.js
+++ b/config/default.js
@@ -53,10 +53,10 @@ module.exports = {
   // URL for the signer
   signerPath: 'https://ropsten.infura.io',
 
-  // Address with the funding for the bounties
+  // Address with the funding for the bounties (hex value starting with 0x)
   sourceAddress: '0x26a4D114B98C4b0B0118426F10fCc1112AA2864d',
 
-  // Private key for ether.js wallet
+  // Private key for ether.js wallet (hex value starting with 0x)
   privateKey: '',
 
   // Token of the currency for fetching real time prices (e.g. 'SNT')