Railway•2mo ago

HTTPX/requests cannot send REST requests to other service

I am trying to get API data from another service I have in the same project. The code is not changed in a week and it suddenly stopped working today. The service making the request is a Pycord bot towards FastAPI service

Solution:

I need hypercorn

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20 Replies

Percy•2mo ago

Project ID: ff816097-dff3-4925-9c7d-c91d0c42ee5b

𝘬𝘢𝘱𝘱𝘺OP•2mo ago

ff816097-dff3-4925-9c7d-c91d0c42ee5b Also want to note, using public or private networking seems to not make a difference, I can access the public one via browser but not with the service

Brody•2mo ago

can you please define stopped working? that's extremely vague

𝘬𝘢𝘱𝘱𝘺OP•2mo ago

Establishing connection with the httpx/requests to the service fails The end of the log contains this message for httpx:

File "/opt/venv/lib/python3.11/site-packages/httpx/_transports/default.py", line 372, in handle_async_request
with map_httpcore_exceptions():
File "/root/.nix-profile/lib/python3.11/contextlib.py", line 158, in __exit__
self.gen.throw(typ, value, traceback)
File "/opt/venv/lib/python3.11/site-packages/httpx/_transports/default.py", line 86, in map_httpcore_exceptions
raise mapped_exc(message) from exc
httpx.ConnectError: All connection attempts failed
[INFO] client:  Cleaning up tasks.
[INFO] client:  Cleaning up after 2 tasks.
[INFO] client:  All tasks finished cancelling.
[INFO] client:  Closing the event loop.

File "/opt/venv/lib/python3.11/site-packages/httpx/_transports/default.py", line 372, in handle_async_request
with map_httpcore_exceptions():
File "/root/.nix-profile/lib/python3.11/contextlib.py", line 158, in __exit__
self.gen.throw(typ, value, traceback)
File "/opt/venv/lib/python3.11/site-packages/httpx/_transports/default.py", line 86, in map_httpcore_exceptions
raise mapped_exc(message) from exc
httpx.ConnectError: All connection attempts failed
[INFO] client:  Cleaning up tasks.
[INFO] client:  Cleaning up after 2 tasks.
[INFO] client:  All tasks finished cancelling.
[INFO] client:  Closing the event loop.

And this for requests:

File "/opt/venv/lib/python3.11/site-packages/requests/adapters.py", line 700, in send
raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='enigmacollective_backend.railway.internal', port=8000): Max retries exceeded with url: /guild_settings/1130063785005174785 (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f8767b2f290>: Failed to establish a new connection: [Errno 111] Connection refused'))

File "/opt/venv/lib/python3.11/site-packages/requests/adapters.py", line 700, in send
raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='enigmacollective_backend.railway.internal', port=8000): Max retries exceeded with url: /guild_settings/1130063785005174785 (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f8767b2f290>: Failed to establish a new connection: [Errno 111] Connection refused'))

Both services worked, as I printed the url and could see the docs of FastAPI

Brody•2mo ago

can you please provide the url in question?

𝘬𝘢𝘱𝘱𝘺OP•2mo ago

http://enigmacollective_backend.railway.internal:8000/guild_settings/1130063785005174785

Brody•2mo ago

how do you know its listening on port 8000?

𝘬𝘢𝘱𝘱𝘺OP•2mo ago

I use Railway's variables like this: http://${{enigmacollective_backend.RAILWAY_PRIVATE_DOMAIN}}:${{enigmacollective_backend.PORT}}

Brody•2mo ago

that is definitely a good start, but doesn't quite answer my question

𝘬𝘢𝘱𝘱𝘺OP•2mo ago

Are you refering to the settings of the service? In the logs of the deployment the internal port of FastAPI is 8000

You reached the start of the range → Oct 2, 2024 9:12 PM
WARNING:  ASGI app factory detected. Using it, but please consider setting the --factory flag explicitly.
INFO:     Started server process [7]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     Uvicorn running on http://0.0.0.0:8000 (Press CTRL+C to quit)

You reached the start of the range → Oct 2, 2024 9:12 PM
WARNING:  ASGI app factory detected. Using it, but please consider setting the --factory flag explicitly.
INFO:     Started server process [7]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     Uvicorn running on http://0.0.0.0:8000 (Press CTRL+C to quit)

but maybe the service settings got messed up?

Brody•2mo ago

are you aware that the private network is IPv6 only?

𝘬𝘢𝘱𝘱𝘺OP•2mo ago

yes

Brody•2mo ago

you are listening on a IPv4 address

𝘬𝘢𝘱𝘱𝘺OP•2mo ago

ah that's why

Solution

𝘬𝘢𝘱𝘱𝘺•2mo ago

I need hypercorn