What are some best practices for using Flask with async features?

What are some best practices for using Flask with async features?

When using Flask with async features, consider using Flask 2.0 or later, which supports async routes. Also, ensure that your async functions are properly awaited to avoid blocking the event loop.

Can you give me an example of an async route in Flask?

Sure! Here's a simple example:

from flask import Flask
import asyncio

app = Flask(__name__)

@app.route('/async')
async def async_route():
    await asyncio.sleep(1)
    return 'This is an async route!'

What libraries can I use to enhance async capabilities in Flask?

You can use libraries like aiohttp for making async HTTP requests, and SQLAlchemy with asyncpg for async database interactions.

Are there any performance considerations I should be aware of?

Yes, be cautious of blocking calls in your async code, as they can negate the benefits of async programming. Always use async-compatible libraries.