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@marklagendijk
Created July 8, 2021 08:10
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.NET Core Response Header Middleware
using System.Collections.Generic;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
namespace MyApplication
{
public class ResponseHeaderMiddleware
{
private readonly RequestDelegate _next;
private readonly IDictionary<string, string> _headers;
public ResponseHeaderMiddleware(RequestDelegate next, IDictionary<string, string> headers)
{
_next = next;
_headers = headers;
}
public async Task InvokeAsync(HttpContext context)
{
foreach (var header in _headers)
{
context.Response.Headers[header.Key] = header.Value;
}
await _next(context);
}
}
public static class ResponseHeaderMiddlewareExtensions {
public static IApplicationBuilder UseResponseHeaders(this IApplicationBuilder builder, IDictionary<string, string> headers)
{
return builder.UseMiddleware<ResponseHeaderMiddleware>(headers);
}
}
}
namespace MyApplication
{
public class Startup
{
public void Configure(IApplicationBuilder app)
{
app.UseResponseHeaders(new Dictionary<string, string>
{
{"Referrer-Policy", "no-referrer"}
});
}
}
}
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