JQuery Ajax

     function getAllData(targetUrl) {
            
            $.ajax({
                url: targetUrl,
                type: 'GET',                    
                dataType: 'json',
                success: function (data) {
                    // process data
                },
                error: function () {
                    // process error
                }
            });
        }



         function AddData(targetUrl) {
            
            //create an object
            var myObject = {
                propertyOne: $('#someID').val(),
                propertyTwo: $('#anotherID').val(),
            };

            $.ajax({
                url: targetUrl,
                type: 'POST',
                data: JSON.stringify(myObject),                 // make a json object out of the js object
                contentType: "application/json;charset=utf-8",
                success: function (data) {
                    // process data
                },
                error: function () {
                    // process error
                }
            });
        }


        function DeleteData(target) {

            // get the id of the data to delete
            var id = $('#dataId').val()

                $.ajax({
                    url: target + id,
                    type: 'DELETE',
                    contentType: "application/json;charset=utf-8",
                    success: function (data) {
                        // process data
                    },
                    error: function () {
                        // process error
                    }
                });            
        }

        function GetData(target) {

            // get the id of the data to retrieve
            var id = $('#dataId').val();

            $.ajax({
                url: target + id,       // pass the id with the url
                type: 'GET',
                dataType: 'json',
                success: function (data) {
                    // process data
                },
                error: function () {
                    // process error
                }
            });
        }