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content/_code-samples/monitor-payments-websocket/py/monitor_incoming.py

@@ -3,6 +3,7 @@ import websockets
 import json
 
 # Using client libraries for ASYNC functions and websockets are needed in python.
+# To install, use terminal command 'pip install asyncio && pip install websockets'
 
 # Handles incoming messages
 async def handler(websocket):

content/_code-samples/monitor-payments-websocket/py/read_amount_received.py

@@ -2,64 +2,72 @@ import json
 
 # Helpers to find accounts in AffectedNodes and see how much the balance changed.
 def FindXRPDifference(tx, address):
+	# Define empty list to put the Node change type in.
+	affected_nodes = []
+	# Loop over the AffectedNodes to build a list of affected nodes
 	for i in tx['meta']['AffectedNodes']:
-		if 'CreatedNode' and 'ModifiedNode' in list(i): 
+		i = list(i)[0]
-			# If a CreatedNode and a ModifiedNode both exist, the monitores account has funded another account
+		affected_nodes.append(i)
+	else:
+		for i in tx['meta']['AffectedNodes']:
+			if 'CreatedNode' in affected_nodes and 'ModifiedNode' in affected_nodes: 
+				# If a CreatedNode and a ModifiedNode both exist, the monitored account has funded another account
+				# If both exist, CreatedNode always comes after AffectedNode, so we can gather it by getting the second entry in the list by using [1]
+				ledger_entry = tx['meta']['AffectedNodes'][1]['CreatedNode']
 				if ledger_entry['LedgerEntryType'] == 'AccountRoot' and ledger_entry['NewFields']['Account'] != address:
 					new_address = ledger_entry['NewFields']['Account']
 					balance_drops = int(ledger_entry['NewFields']['Balance'])
 					xrp_amount = (balance_drops / 1000000)
-				print("A new account", new_address, "was funded with", xrp_amount, "XRP")
+					print(f"A new account {new_address} was funded with {xrp_amount} XRP")
-				break
+					return
-
+			elif affected_nodes == ['ModifiedNode']:
-		elif list(i)[0] == 'ModifiedNode':
 				ledger_entry = i['ModifiedNode']
 				if ledger_entry['LedgerEntryType'] == 'AccountRoot' and ledger_entry['FinalFields']['Account'] == address:
 					if not ledger_entry['PreviousFields']['Balance']:
-					print('Balance didnt change')
+						print("Balance didn't change")
 					# Subtracts the previous balance from the new balance
 					old_balance = int(ledger_entry['PreviousFields']['Balance'])
 					new_balance = int(ledger_entry['FinalFields']['Balance'])
 					diff_in_drops = (new_balance - old_balance)
 					xrp_amount = (diff_in_drops / 1000000)
 					if xrp_amount > 0:
-					print("Received", xrp_amount, "XRP")
+						print(f"Received {xrp_amount} XRP")
-					break
+						return
 					else:
 						print("Spent", abs(xrp_amount), "XRP")
-					break
+						return
-		elif list(i)[0] == 'CreatedNode':
+
+			elif affected_nodes == ['CreatedNode']:
 				# If there is no outgoing payment, but an account was created, the account most likely just got funded
 				ledger_entry = i['CreatedNode']
 				if ledger_entry['LedgerEntryType'] == 'AccountRoot' and ledger_entry['NewFields']['Account'] == address:
 					balance_drops = int(ledger_entry['NewFields']['Balance'])
 					xrp_amount = (balance_drops / 1000000)
-				print("Received", xrp_amount, "XRP (account funded)")
+					print(f"Received {xrp_amount} XRP (account funded)")
-				break
+					return
 		else:
 			print("Did not find address in affected nodes.")
 	
-
+# Check how much XRP was received, if any
 def CountXRPReceived(tx, address):
 	if tx['meta']['TransactionResult'] != 'tesSUCCESS':
-		print('Transaction failed')
+		print("Transaction failed")
 		return
 	if tx['transaction']['TransactionType'] == 'Payment':
 		if tx['transaction']['Destination'] != address:
-			print('Not the destination of this payment.')
+			print("Not the destination of this payment.")
 			return
-		if tx['meta']['delivered_amount'] is str:
+		if tx['meta']['delivered_amount'] is int or str:
-			amount_in_drops = tx['transaction']['Amount']
+			amount_in_drops = int(tx['transaction']['Amount'])
 			xrp_amount = (amount_in_drops / 1000000)
-			print('Received', xrp_amount, 'XRP')
+			print(f"Received {xrp_amount} XRP")
 			return
 		else:
-			print('Received non-XRP currency')
+			print("Received non-XRP currency")
 	elif tx['transaction']['TransactionType'] == 'PaymentChannelClaim' or 'PaymentChannelFund' or'OfferCreate' or 'CheckCash' or 'EscrowFinish':
 		FindXRPDifference(tx, address)
 	else:
-		print('Not a currency-delivering transaction type', tx['transaction']['TransactionType'])
+		print("Not a currency-delivering transaction type", tx['transaction']['TransactionType'])
-
 
 CountXRPReceived(tx=transaction, address='rPT1Sjq2YGrBMTttX4GZHjKu9dyfzbpAYe')