How can I handle errors in ASP.NET Core middleware?

How can I handle errors in ASP.NET Core middleware?

You can handle errors in ASP.NET Core middleware by using the built-in exception handling middleware. This allows you to catch exceptions and return appropriate responses.

Can you show me an example of how to implement this?

Sure! You can add the exception handling middleware in the Configure method of your Startup.cs file like this:

app.UseExceptionHandler("/error");

What should I do in the /error endpoint?

In the /error endpoint, you can return a custom error response. For example:

app.Map("/error", (HttpContext http) => {
    return Results.Problem("An error occurred.");
});

Is there a way to log these errors as well?

Yes, you can use logging frameworks like Serilog or NLog to log errors. Just inject the logger into your middleware and log the exceptions.