ajax_post_example.js

 $.ajax({
        url: apiUrl,
        method: 'POST',
        contentType: "application/json",
        dataType: 'json',
        data: JSON.stringify(orderData),
        headers: {
            'X-CSRFToken': csrftoken,
            'Accept': 'application/json',
            'Content-Type': 'application/json'
        },
        success: function(result){
            if(result.status == 'ok'){
                window.location.replace(success_url)
            }
            else {
                window.location.replace(cancel_url)
                }
        },
        error: function(result){
            window.location.replace(cancel_url)
        }
 });