Intercepting HttpRequest and log contents to a database

Question

I would like to intercept all Httprequest and log the contents to a database table. I am using EF core, swagger and c# in vs. I would also like to add a background worker that deletes this requests every seven days.

I have tried using RequestDelegate but I am not able to save the information to a database

Answer 1

Here is what I was looking for. I used a middleware.

using Issue2.Model;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using System.Threading.Tasks;

namespace Issue2.Middleware
{
    // You may need to install the Microsoft.AspNetCore.Http.Abstractions package into your project
    public class Middleware1
    {
        private readonly RequestDelegate _next;

        public Middleware1(RequestDelegate next)
        {
            _next = next;
        }

        public Task Invoke(HttpContext httpContext, AppDbContext appDbContext)
        {
            var status = httpContext.Response.StatusCode;
            var url = httpContext.Request.Host.ToString();
            var method = httpContext.Request.Method.ToString();
            appDbContext.requestMessages.Add(new RequestMessage { Received = DateTime.Now, Method = method, Url = url, Status = status });
            appDbContext.SaveChanges();
            return _next(httpContext);
        }
    }

    // Extension method used to add the middleware to the HTTP request pipeline.
    public static class Middleware1Extensions
    {
        public static IApplicationBuilder UseMiddleware1(this IApplicationBuilder builder)
        {
            return builder.UseMiddleware<Middleware1>();
        }
    }
}