From 5fc79e16511c1956d7c7fcadf0760f126130a459 Mon Sep 17 00:00:00 2001
From: Ghulam Mustafa Raza Qadri <ghulammustafasoomar@gmail.com>
Date: Fri, 12 Oct 2018 04:56:50 -0700
Subject: [PATCH] Add validation if Aval have amount then transfer

---
 chaincode/chaincode_example02/node/chaincode_example02.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/chaincode/chaincode_example02/node/chaincode_example02.js b/chaincode/chaincode_example02/node/chaincode_example02.js
index 545092af..7df4cdff 100644
--- a/chaincode/chaincode_example02/node/chaincode_example02.js
+++ b/chaincode/chaincode_example02/node/chaincode_example02.js
@@ -88,7 +88,9 @@ var Chaincode = class {
     if (typeof amount !== 'number') {
       throw new Error('Expecting integer value for amount to be transaferred');
     }
-
+    if (!(Aval > amount)) {
+      throw new Error(util.format('amount in account A must must be greater then amount (%d) but found %d', amount, Aval));        
+    }
     Aval = Aval - amount;
     Bval = Bval + amount;
     console.info(util.format('Aval = %d, Bval = %d\n', Aval, Bval));