FastAPI Background Tasks Not Triggering Correctly with Async Function
I keep running into I've been struggling with this for a few days now and could really use some help... I'm relatively new to this, so bear with me. I'm working on a personal project and I'm facing an issue with FastAPI where my background tasks are not triggering as expected when I call an asynchronous function. I have a simple FastAPI application running on Python 3.10, and I'm trying to execute a background task that sends an email after a user registers. Here's a simplified version of my code: ```python from fastapi import FastAPI, BackgroundTasks from fastapi.responses import HTMLResponse import asyncio app = FastAPI() async def send_email(email: str): await asyncio.sleep(2) # Simulate email sending delay print(f'Email sent to {email}') # Replace with actual email sending logic @app.post('/register/') async def register(email: str, background_tasks: BackgroundTasks): background_tasks.add_task(send_email, email) return HTMLResponse(content='User registered successfully!') ``` When I register a user, I can see the 'User registered successfully!' message immediately, but the email sending function doesn't seem to execute after that. I expected to see 'Email sent to {email}' printed after a 2-second delay, but it never appears in the console. I have confirmed that FastAPI's background tasks are configured correctly, and I have tried using a synchronous function instead, which works as expected. The issue seems to lie in how the async function is being handled in the background task. I also checked for any potential errors in the logs, but nothing comes up related to this. Could this be a problem with the way I'm using async functions in the background tasks? Is there something specific I need to do to ensure that async functions work correctly in this context? Any insights or suggestions would be greatly appreciated! My development environment is Windows. I'd really appreciate any guidance on this. This issue appeared after updating to Python 3.10. Thanks for your help in advance! My team is using Python for this microservice. This is part of a larger desktop app I'm building. Am I approaching this the right way?