getting the request body inside HttpContext from a Middleware in asp.net core 2.0

Question

I am having a simple middleware which fetches the body of the request and store it in a string. It is reading fine the stream, but the issue is it wont call my controller which

Answer 1

when it comes to capturing the body of an HTTP request and/or response, this is no trivial effort. In ASP .NET Core, the body is a stream – once you consume it (for logging, in this case), it’s gone, rendering the rest of the pipeline useless.

Ref:http://www.palador.com/2017/05/24/logging-the-body-of-http-request-and-response-in-asp-net-core/

public async Task Invoke(HttpContext httpContext)
    {
        var timer = Stopwatch.StartNew();
        string bodyAsText = await new StreamReader(httpContext.Request.Body).ReadToEndAsync();
        var injectedRequestStream = new MemoryStream();
        var bytesToWrite = Encoding.UTF8.GetBytes(bodyAsText);
        injectedRequestStream.Write(bytesToWrite, 0, bytesToWrite.Length);
        injectedRequestStream.Seek(0, SeekOrigin.Begin);
        httpContext.Request.Body = injectedRequestStream;
        await _next(httpContext);

        timer.Stop();
    }