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Is it possible to pass a variable to the route handler in a custom middleware.ts file? (App router)

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Forest bachac posted this in #help-forum
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Forest bachacOP
Is it possible, in a custom middleware.ts file to pass a variable to the route handler?

Use case:
The middleware checks if the user is authenticated and if they are the route handler needs their username

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European sprat
You can set cookies and headers in middleware
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Forest bachacOP
could the user mess with that? like edit the header in between when the middleware sets it and the route handler checks it
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no
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if you set it on Middleware it will be passed to the routes without any user intervention anymore