ajax requesting POST error status code 500

Sure, here is the HTML code for the copywriter's response, formatted with a block to represent codes: ```html

The error you are encountering is most likely due to an incorrect URL in your AJAX request. Let's take a look at the structure of your code and identify the issue.

public class ModelClass
{
    public int Id { get; set; }
    public string Name { get; set; }
}
    

This is the model class that represents the data you are sending in your AJAX request.

[Route("api/[controller]")]
[ApiController]
public class ManageEmployeeController : ControllerBase
{

    [HttpPost]
    [Route("Insert_Something")]
    public async Task Insert_Something(ModelClass searchModel)
    {

        return Ok(searchModel);
    }
}
    

This is the API controller that handles the AJAX request. The [Route] attribute specifies the URL that the controller responds to.

$(document).on('click', '#btnSave', function (e) {

    const array = { Id: 1, Name: "Test Name" };
    var data = JSON.stringify(array);
    $.ajax({
        url: '/Api/ManageEmployee/Insert_Something',
        type: 'POST',
        data: data,
        contentType: "application/json; charset=utf-8",
        success: function (result) {
            console.log(result);
        },
        error: function (e) {
        }
    });
});
    

This is the AJAX request that is being sent to the API controller. The url property specifies the URL that the request is being sent to.

Note: window.location.origin +'/Api/ManageEmployee/Insert_Something' is also a valid URL for the AJAX request.

Here is an example of the output that you should see in the console when the AJAX request is successful:

• 
• 
• 

Note: If you have any specific requirements for custom route configuration, please refer to the official Microsoft documentation: Custom Route Configuration.

```