如何在 MVC 主控制器中将 http post 请求数据读取为 JSON？

Question

I have a home controller method below which is invoked from a http post request. I need to read the request data and send it to the view. Is there a way to look at the raw data without creating parameters in the SaveResponse() ? Thanks for any suggestions.

 public ActionResult SaveResponse()
    {
        //Read the http post request body as json and send it to view
        //HttpContext.Request.RequestContext

        return View("CallbackView");
    }

The request body will be in JSON format.

{
   "customers":
  {
    "firstName": "Test”,
    "lastName": “Lastname”,
    "fullAddress": 
    {
        "streetAddress": "123 springs lane",
        "city": "New York",
        "state": "NY",
        "postalCode": 10021
    }
  }
}

Answer 1

You can do it by reading Request.InputStream

[HttpPost]
public ActionResult SaveResponse()
{
    string json;
    using (var reader = new StreamReader(HttpContext.Request.InputStream))
    {
        json = reader.ReadToEnd();
    }

    return View("CallbackView");
}

or you can accept string parameter and model binder will do everything for you, but you need to pass data as a string via json parameter. Some of available options

• Set Content-Type: application/json and payload like {"json": "{id:44}"}

• Set Content-Type: x-www-form-urlencoded and payload like json={id:44}

Action

[HttpPost]
public ActionResult SaveResponse(string json)
{
    return View("CallbackView");
}