asp.net-core Error Handling Redirect to custom error page
Example
ASP.NET Core provides the status code pages middleware, that supports several different extension methods, but we are interesting in UseStatusCodePages and UseStatusCodePagesWithRedirects:
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UseStatusCodePages adds a StatusCodePages middleware with the given options that checks for responses with status codes between 400 and 599 that do not have a body. Example of use for redirect:
app.UseStatusCodePages(async context => { //context.HttpContext.Response.StatusCode contains the status code // your redirect logic });
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UseStatusCodePagesWithRedirects adds a StatusCodePages middleware to the pipeline. Specifies that responses should be handled by redirecting with the given location URL template. This may include a '{0}' placeholder for the status code. URLs starting with '~' will have PathBase prepended, where any other URL will be used as is. For example the following will redirect to ~/errors/<error_code> (for example ~/errors/403 for 403 error):
app.UseStatusCodePagesWithRedirects("~/errors/{0}");
