Request processing with middlewares

TYPO3

Description

This skill covers the usage of PSR-15 middlewares in TYPO3 - both for frontend and backend request processing.

I understand how the core leverages middlewares to modularize request processing (middleware dispatcher, chained middlewares, …).
I know how to find out which middlewares are configured and their order of execution.
I can write my own middlewares and add them to the frontend and backend request processing.
I can overwrite Core-provided middlewares.

Andreas Wolf