Making ESP32-cam as a client from being a server

[Balaji-Ganesh]

Need

• Currently middleware with FastAPI and python-socketio is being
  • as a server -- for Flask WebApp.
  • as a client -- for ESP32.
• Fewer times, connection to ESP32 is breaking.

Current setup (of ESP32)

• The ESP32 is configured to connect to mobile hotspot.
• Hence, each time it connects, (most possibly)get the different IP address.

Possible issues that raise out (When becomes a client)

• Need to upload the code to ESP32 by updating the assigned IP of computer, in each setup of environment to run/test.

Solutions

• Use a router and assigning static IP addresses to the computer and ESP32.
  • This solves repeated uploading to ESP32.

[Balaji-Ganesh]

A light on few lines..

reg.

• Fewer times, connection to ESP32 is breaking.

OK, why not change the middleware from using websockets to python-socket.io as like the Flask-webapp. So that, like Web-client, it polls for auto re-connect and gets connected to ESP32. This fulfills the need right - connection breaking right..?

reg.

• as a client -- for ESP32.

This appears completely fine, as as per the need, the ESP32 should able to serve both Camera feed and collision feed simultaneously.

• When being a server, both needs are served on different port -- good.
• If becomes client, how to make two features available parallely?
  • May say, multi-threading.. Why go for even more complex setup, when being as a server does the job perfectly fine, that too neatly??

reg.

• Use a router ... (for assigning static IP.)

In middleware, can update the IP address of ESP32 easily right.

• Hence no need of any router, just simply go with mobile hotspot.

[Balaji-Ganesh]

Now if would like to solve the error (mentioned in description, simply as connection breaking)

Message: '[EXCEPTION] Camera streaming interrupted. Error: '
Arguments: (ConnectionClosedError(None, Close(code=1011, reason='keepalive ping timeout'), None),)

• Change the library from websockets to python-socketio and make sure to find and enable autoReconnnect to True. So, that, even if by some cause, it gets disconnected, by socketio's polling mechanism, can connect back to server.