Is it possible to emit a message from a function?

[bp32795]

I have an app.py and a get_data.py. The latter has a for loop that I would like to emit the progress of using socket.io emit. I am passing the socketio object from app.py to the function, and I can see in the verbose logging that there is a emit call going out. However, I am unable to see the results of that call both in the webpage and the app.py. The app.py and webpage can communicate with each other successfully, I am having trouble with them receiving messages from get_data.py.

Example code here.

[miguelgrinberg]

This has to be a bug in your own application. The example app.py in this repository emits from a separate function that even runs on a separate thread. Usually what helps is to simplify the application until you can provide it to me for debugging. In 9 out of 10 cases you will figure out what's wrong yourself without getting to a point that you can share your code.

[bp32795]

I have done that and am still having the issue: https://github.com/bp32795/SocketInFunction

[miguelgrinberg]

You are running the for loop before returning the template to the browser, which in turn will allow the browser to make a connection. You may want to loop at the example I referenced earlier, which uses a background thread for the function.

[bp32795]

Thank you! That completely solved my problem.