What are Flask decorators and how do I use them?

What are Flask decorators and how do I use them?

Flask decorators are a way to modify the behavior of a function or a method in Flask. They are often used to add functionality to routes.

Can you give me an example of a Flask decorator?

Sure! A common example is the @app.route decorator, which is used to define a route for a specific URL.

How do I create a custom decorator in Flask?

To create a custom decorator, define a function that takes another function as an argument, and then return a new function that adds the desired behavior.

Can you show me a code snippet for a custom decorator?

Absolutely! Here's a simple example:

from functools import wraps

def my_decorator(f):
    @wraps(f)
    def decorated_function(*args, **kwargs):
        print('Before the function call')
        return f(*args, **kwargs)
    return decorated_function

@app.route('/example')
@my_decorator
def example():
    return 'Hello, World!'