
Hi !
After my yesterday post using Flask, I was sure that a FastAPI version will be needed, so here it goes:
I have a common scenario which involves:
- A sensor collecting information
- A web-server publishing the sensor information
Read my previous posts to understand why I think this is the simple way to solve this: Multi-threading.
- Thread 1, where an infinite loop request information from the sensor, and stores the latest value to be shared.
- Thread 2, where a web-server process requests and share the latest sensor information.
Easy ! And after a couple of tests, I manage to create a single file implementing this:
So at this point, you may think: why does El Bruno need this? So, let’s share an image that I’ll use in future posts:

Happy coding!
Greetings
El Bruno
More posts in my blog ElBruno.com.
More info in https://beacons.ai/elbruno
Resources
Hi El Bruno, I came across your awesome blog while I am searching how to share information to background thread from Flask Webapp entry function. I would like to refer your work ( reference image in this blog , Thermal Detector Labs ) . I have searched entire posts, but I could not find it. Kindly share your approach for sharing the frames captured from the webcam to background work and to display it result in new window. Thank you.
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