What are the best practices for database connection pooling in Flask apps?

What are the best practices for database connection pooling in Flask apps?

The best practices include using a connection pool library like SQLAlchemy, configuring the pool size appropriately, and ensuring connections are properly closed after use.

How do I configure the pool size in SQLAlchemy?

You can configure the pool size by setting the pool_size parameter when creating the engine, like this: create_engine('database_url', pool_size=10).

What happens if the pool size is too small?

If the pool size is too small, your application may experience delays or timeouts when trying to acquire a connection, leading to performance issues.

Can you explain how to handle connection timeouts?

You can handle connection timeouts by setting the pool_timeout parameter in SQLAlchemy, which specifies how long to wait for a connection before raising an error.