Advanced Hook Usage

Multiple Hooks

You can apply multiple hooks to a resource. Just chain them together using the Falcon decorators:

@falcon.before(auth_hook)
@falcon.before(another_hook)
class AnotherResource:
def on_get(self, req, resp):
resp.media = {'message': 'Multiple hooks applied!'}

By using Falcon hooks, we achieve clean separation of concerns, making our code more modular and easier to maintain.

Python Falcon – Hooks

In Falcon, hooks are type of callbacks that are defined by the user and are executed before or after a responder method in a particular resource class to process client request. They are useful in as much as they allow a client to add or overwrite request processing functionality at certain predefined stages.

Similar Reads

Understanding Hooks in Python Falcon

Falcon offers two types of hooks:...

Using Hooks

Falcon provides two decorators, @falcon.before and @falcon.after, for hanging callbacks on responder methods, or indeed on whole classes of resources. The arguments passed to hook functions include:...

Example: Authentication Hook

Let’s create a simple example where we use a before hook to check for an authentication token in the request headers....

Testing the Hook

Let’s test our before hook using curl:...

Example: Logging (After Hooks)

After hooks are defined similarly but are used to modify the response:...

Advanced Hook Usage

Multiple Hooks...

Common Use Cases for Falcon Hooks

Authentication and Authorization:...