Update app.py

app.py

@@ -255,7 +255,9 @@ def get_my_chain_rec(recipient_name=None):
     except Exception:
         try:
             mychain_rec = MyChainRec(chain_load=main_balance,create=recipient_name)
-            response = mychain_rec.chain
+            response = {'chain': mychain_rec.chain,
+                    'length': len(mychain_rec.chain)}
+            
             message = f"Blockchain loaded from: {main_balance}{recipient_name}.json"
             return response,message
         except Exception:
@@ -355,18 +357,29 @@ def issue_tokens(send,rec,amount):
                 pass
             if p==True:
                 balance = lod[-1]["balance"]
-                #print (balance)
+                print (balance)
                 balance_send =int(balance)-int(amount)
                 if balance_send >=0:
                     p=True
+                    
                     response,message = get_my_chain_rec(rec)
                     #lod_rec = json.loads(response)
                     lod_rec = response
-                    #try:
-                    if lod_rec[-1]["index"] > 1:
-                        balance = lod_rec[-1]["balance"]
-                    if lod_rec[-1]["index"] == 1:
-                        balance = 0
+                    try:
+                        if lod_rec["chain"][-1]["index"] > 1:
+                            balance = lod_rec[-1]["balance"]
+                        if lod_rec["chain"][-1]["index"] == 1:
+                            balance = 0
+                    except Exception:
+                        p=False
+                        try:
+                            if lod_rec["chain"][0]["index"] > 1:
+                                balance = lod_rec[-1]["balance"]
+                            if lod_rec["chain"][0]["index"] == 1:
+                                balance = 0
+                            p=True
+                        except Exception:
+                            p=False
                     balance_rec =int(balance)+int(amount)
 
                 if balance_send < 0: