Customizing ASP.NET Core 5.0 by Jürgen Gutsch

Author:Jürgen Gutsch
Language: eng
Format: epub
Publisher: Packt Publishing Pvt. Ltd.
Published: 2021-01-28T00:00:00+00:00

Rewriting a terminating middleware to current standards

If you have an existing middleware that provides a different endpoint, you should change it to use the new endpoint routing:

As an example, let's create a small dummy middleware that writes an application status to a specific route. In this demo, there is no custom route handling:public class AppStatusMiddleware

{

private readonly RequestDelegate _next;

private readonly string _status;

public AppStatusMiddleware(

RequestDelegate next, string status)

{

_next = next;

_status = status;

}

public async Task Invoke(HttpContext context)

{

await context.Response.WriteAsync(

$"Hello {_status}!");

}

}

The first thing we need to do is to write an extension method on the IEndpointRouteBuilder type. This method has a route pattern as an optional argument and returns an IEndpointConventionBuilder type to enable CORS, authentication, or other conditions to the route.

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