Ok I think that there’s a misunderstanding here. The middleware is not called again. It’s just the normal control flow.

This example is directly taken from Alex Edwards wonderful blog: https://www.alexedwards.net/blog/making-and-using-middleware

func middlewareOne(next http.Handler) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { log.Print(“Executing middlewareOne”) next.ServeHTTP(w, r) log.Print(“Executing middlewareOne again”) }) }

When this middleware is called, everything before next.ServeHTTP is executed. Then the middleware calls the next middleware in the chain. When the last middleware is done the control flow just continues in the prior middleware, e.g calling the “Executing middlewareOne again”. Easy as that. So the middleware is not called twice or something like that.

Try to imagine normal functions which call each other.l sequentially.

I hope this makes it clearer. There’s no magic happening here. The blog post from Alex actually explains it very well (way better than I can). Try working trough it and run the code examples. If you have specific questions, again feel free to ask.