Call middleware component by condition Asp.Net Core

Question

Is it possible to only execute middleware for requests that comes not from js. Because i have a middleware executing of which doesn't make much ssense for js requests to my server. Are there possible ways to check that request is not direct?

Answer 1

You cannot execute a middleware only for some requests, but you can check for the request to meet a condition in your middleware for exemple if an header is present in the request.

Let's say your js client calling your api add a custom header in each request you can write a middleware checking for that header and executing some code if the header is present.

app.Use((context, next) =>
{
    if (context.Request.Headers.Any(h => h.Key == "Custom-Header"))
    {
           DoStuff();
    }

    return next();
})