How to use Python requests in Google Cloud Firestore Triggers - python-3.x

Question

We are working on a mobile app where we are using firebase, we are using firestore as our database and maintaining data in collections here the thing we have to post the data to salesforce whenever there is any change or update in any of the records in order to do this we have created firestore triggers in the cloud using python 3.7 using this reference Click Here
, the cloud function is Trigger type as Cloud Firestore (Beta) and Event type as providers/cloud.firestore/eventTypes/document.write using {wildcard} with the path as Shipments/{ShipmentId} and it is triggered whenever there is a change in Shipments Collections modified my code in main.py file as
import requests
def TriggerShipmentChange(event, context):
resource_string = context.resource
print("function trigger by change to",{resource_string})
data = event
if data["oldValue"] == {} and data["updateMask"] == {}:
print("New shipment record $$$ Created $$$", data["value"])
elif data["updateMask"] == {} and data["value"] == {}:
print("Shipment record is $$$ deleted $$$", data["oldValue"])
elif data["oldValue"] != {} and data["value"] != {} and data["updateMask"] != {}:
print("Shipment record is $$$ updated $$$ and updated fields", data["updateMask"]["fieldPaths"])
print("updated values", data["value"])
else:
print("Function Response", data)
print("update details in backend")
URL ='http://*****.herokuapp.com'
result = requests.get(URL)
print("response", result.status_code, result.content)
and updated requirements.txt with
requests==2.22.0
and changed Function to execute to TriggerShipmentChange
I am able to execute these triggers and get the data of the updated record and hence planning to post them to salesforce here am using an external service to post data but first, in order to check connection I just made a get request which is throwing an error. Here I need to make a post request to an external server which is hosted in Heroku. I'll attach my logs
Function execution took 101 ms, finished with status: 'crash'
Traceback (most recent call last):
File "/env/local/lib/python3.7/site-packages/urllib3/connection.py", line 157, in _new_conn
(self._dns_host, self.port), self.timeout, **extra_kw
File "/env/local/lib/python3.7/site-packages/urllib3/util/connection.py", line 61, in create_connection
for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
File "/opt/python3.7/lib/python3.7/socket.py", line 748, in getaddrinfo
for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -3] Temporary failure in name resolution
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/env/local/lib/python3.7/site-packages/urllib3/connectionpool.py", line 672, in urlopen
chunked=chunked,
File "/env/local/lib/python3.7/site-packages/urllib3/connectionpool.py", line 387, in _make_request
conn.request(method, url, **httplib_request_kw)
File "/opt/python3.7/lib/python3.7/http/client.py", line 1244, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/opt/python3.7/lib/python3.7/http/client.py", line 1290, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/opt/python3.7/lib/python3.7/http/client.py", line 1239, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/opt/python3.7/lib/python3.7/http/client.py", line 1026, in _send_output
self.send(msg)
File "/opt/python3.7/lib/python3.7/http/client.py", line 966, in send
self.connect()
File "/env/local/lib/python3.7/site-packages/urllib3/connection.py", line 184, in connect
conn = self._new_conn()
File "/env/local/lib/python3.7/site-packages/urllib3/connection.py", line 169, in _new_conn
self, "Failed to establish a new connection: %s" % e
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x7eef49645410>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/env/local/lib/python3.7/site-packages/requests/adapters.py", line 449, in send
timeout=timeout
File "/env/local/lib/python3.7/site-packages/urllib3/connectionpool.py", line 720, in urlopen
method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
File "/env/local/lib/python3.7/site-packages/urllib3/util/retry.py", line 436, in increment
raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='nltmsfirst.herokuapp.com', port=80): Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7eef49645410>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution'))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/env/local/lib/python3.7/site-packages/google/cloud/functions/worker.py", line 383, in run_background_function
_function_handler.invoke_user_function(event_object)
File "/env/local/lib/python3.7/site-packages/google/cloud/functions/worker.py", line 217, in invoke_user_function
return call_user_function(request_or_event)
File "/env/local/lib/python3.7/site-packages/google/cloud/functions/worker.py", line 214, in call_user_function
event_context.Context(**request_or_event.context))
File "/user_code/main.py", line 35, in TriggerShipmentChange
result = requests.get(URL)
File "/env/local/lib/python3.7/site-packages/requests/api.py", line 75, in get
return request('get', url, params=params, **kwargs)
File "/env/local/lib/python3.7/site-packages/requests/api.py", line 60, in request
return session.request(method=method, url=url, **kwargs)
File "/env/local/lib/python3.7/site-packages/requests/sessions.py", line 533, in request
resp = self.send(prep, **send_kwargs)
File "/env/local/lib/python3.7/site-packages/requests/sessions.py", line 646, in send
r = adapter.send(request, **kwargs)
File "/env/local/lib/python3.7/site-packages/requests/adapters.py", line 516, in send
raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='nltmsfirst.herokuapp.com', port=80): Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7eef49645410>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution'))
E
updated values {'createTime': '2020-01-28T09:56:01.307748Z', 'fields': {'ShipmentId': {'stringValue': '1234'}, 'Status': {'stringValue': 'Tendered'}}, 'name': 'projects/tablet-app-b9154/databases/(default)/documents/App/Dnow/Shipments/SR#1234', 'updateTime': '2020-01-29T08:24:48.233535Z'}
Shipment record is $$$ updated $$$ and updated fields ['Status']
function trigger by change to {'projects/tablet-app-b9154/databases/(default)/documents/App/Dnow/Shipments/SR#1234'}
Function execution started D
I don't want to create a new HTTP function now, I just want to make the above code work is there any way to do that, if not how can I update this updated record data to another server?