Flask 2.0, which was released on May 11th, 2020, adds built-in support for asynchronous routes, error handlers, before and after request functions, and teardown callbacks!

This article assumes that you have prior experience with Flask. If you’re interested in learning more about Flask, check out my course on how to build, test, and deploy a Flask application: Developing Web Applications with Python and Flask

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Async in Flask 2.0
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