ASP.NET MVC Read Raw JSON Post Data

Question

This is driving me crazy. I\'m using ASP.NET MVC. I have a controller with an HttpPost action that acts as a callback URL that is called by another server (not under my cont

Answer 1

Reset the position to Zero before reading the stream. Request.InputStream.Position = 0

Answer 2

For ASP.NET Core 2，this works for me.

    [HttpPost]
    public ActionResult RawTest() {
        using (StreamReader reader = new StreamReader(Request.Body, Encoding.UTF8))
        {  
            string content = reader.ReadToEndAsync().Result;
            //...
        }
        //...
    }

Answer 3

Your initial approach should work if you take into consideration the fact, that ASP.NET MVC model binding has already read the stream, so you should rewind it:

[HttpPost]
public ActionResult Callback(string secret)
{
    Request.InputStream.Seek(0, SeekOrigin.Begin);
    string jsonData = new StreamReader(Request.InputStream).ReadToEnd();

    // ...
}