Update app.py

app.py

@@ -310,24 +310,27 @@ def mychain_mine_block_rec(balance, chain_r=None,chain_n=None):
 def merge_trans():
     trans_bx = []
     previous_post_send = mychain_send.print_previous_block()
+    previous_post_rec = mychain_rec.print_previous_block()
     
     send_block = {
-            'name': previous_post_send['transactions'][0]['sender']
+            'role': 'Sender',
+            'name': previous_post_send['transactions'][0]['sender'],
             'index': previous_post_send['index'],
             'timestamp': previous_post_send['timestamp'],
             'recipient': previous_post_send['transactions'][0]['recipient'],
             'amount': previous_post_send['transactions'][0]['amount'],
             'balance': previous_post_send['balance'], 
             'proof': previous_post_send['proof'],
-            'previous_hash': previous_post['previous_hash']}
+            'previous_hash': previous_post_send['previous_hash']}
     rec_block = {
-            'name': previous_post_send['transactions'][0]['recipient']
-            'index': previous_post['index'],
-            'timestamp': previous_post['timestamp'],
-            'sender': previous_post['transactions'][0]['sender'],
-            'amount': previous_post['transactions'][0]['amount'],
-            'balance': previous_post['balance'], 
-            'proof': previous_post['proof'],
+            'role': 'Recipient',
+            'name': previous_post_rec['transactions'][0]['recipient'],
+            'index': previous_post_rec['index'],
+            'timestamp': previous_post_rec['timestamp'],
+            'sender': previous_post_rec['transactions'][0]['sender'],
+            'amount': previous_post_rec['transactions'][0]['amount'],
+            'balance': previous_post_rec['balance'], 
+            'proof': previous_post_rec['proof'],
             'previous_hash': previous_post['previous_hash']}
     trans_bx.append(send_block)
     trans_bx.append(rec_block)