Is there any way to get data type of XMLHttpRequest on base controller in .net core 3.1-CodePudding

Here is any Jquery ajax POST request;

$.ajax({
    type: "POST",
    url: "/Customers/GetAll",
    contentType: "application/json",
    dataType: "json",
    success: function(response) {
        console.log(response);
    },
    error: function(response) {
        console.log(response);
    }
});

Here is my Controller Action Method which requested by ajax above;

public IActionResult GetAll()
{
    //Method body...
}

How can I get the dataType of any ajax request in base controller or action method?

CodePudding user response：

Try to get accept in headers:

action:

 public IActionResult GetAll()
        {
            string dataType = HttpContext.Request.Headers["accept"].ToString();
            //Method body...
        }

CodePudding user response：

The headers can be retrieved on the HttpContext object.

if(HttpContext.Request.Headers.TryGetValue("accept", out var acceptHeaders)) {
   var firstAcceptHeader = acceptHeaders.FirstOrDefault();
}

You can also access the header value using indexing Headers["accept"], but be aware, that if there is no accept header, for whatever reason, this will throw a NullReferenceException.