Tiny ickle filter for remote endpoint services

services.js

$.poke = function(endpoint, parameters, callback)
{
	var errorResponse = {
		success: false,
		error: "Internal Error"
	};

	var doAjax = false;
	var doPost = false;

	if (typeof(parameters) == "object")
	{
		if (parameters instanceof jQuery && parameters.is("form"))
		{
			doAjax = true;
			parameters = new FormData(parameters[0]);
		}
		else
		{
			if (typeof(parameters._method) == "string")
			{
				if (parameters._method.toLowerCase() == "post")
				{
					doPost = true;
					delete parameters._method;
				}
			}
		}
	}

	var doneFunc = function(result) {
		callback((typeof(result) == "object" && typeof(result.success) == "boolean") ? result : errorResponse);
	};

	var failFunc = function() {
		callback(errorResponse);
	};

	if (doAjax)
	{
		$.ajax({
			url: endpoint,
			data: parameters,
			processData: false,
			contentType: false,
			type: 'POST'
		}).done(doneFunc).fail(failFunc);
	}
	else
	{
		var theFunc = doPost ? $.post : $.get;
		theFunc(endpoint, parameters).done(doneFunc).fail(failFunc);
	}
};