Middleware in Express applications

If you have recently moved or are thinking of moving to the nodejs Express framework than you should primarily get acquainted with its routing and middleware concepts, as an Express application is essentially a series of middleware function calls. Middlewares in Express are functions executed after the incoming request from the client, the middleware then processes the request depending on its purpose and then hands over the request to the next middleware in the chain or generates a output if is the last one in the chain, terminating the request-response cycle.
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