It exactly means 'unable to be explained or accounted for'. If you have no domain knowledge then yeah, it's going to be confusing. Not inexplicable. Confusing.

It exactly means 'unable to be explained or accounted for'. If you have no domain knowledge then yeah, it's going to be confusing. Not inexplicable. Confusing. If you've never heard of middleware then yeah, it's going to be a bit confusing. If you genuinely don't know then middleware is pretty simple. Imagine a stack of functions, each one taking a HTTP request and returning a HTTP response. Each middleware can meddle with the request and/or the response and pass control up the chain. Imagine a middleware that detects if the request is authenticated, and if not returns a 403 status code. If they are authenticated it passes control to the next middleware up the chain. next() is how you call the next middleware in the chain. It's awaited because future middleware can be asynchronous. Irrespective of if you know what next() does it's pretty easy to infer. At least I think. Your millage clearly varies, but it's not because of "these damn over complicated tools that the damn kids on my lawn are using". Harking back to the shitty, insecure, monolithic messes that the 00's produced and saying how simple they all where is... wrong, at best.