CrowdParkRpc2.js

CrowdparkRpc = {
    invokeRpc: function (httpMethod, url, method, params, baseParams, callback) {

        var method = '' + method;
        if (!params) {
            var params = [];
        }
        var rpc = {
            method: method,
            params: params
        };
        if (!baseParams) {
            var baseParams = {};
        }
        for (var key in baseParams) {
            rpc[key] = baseParams[key];
        }

        var requestText;
        var exception;
        try {
            requestText = JSON.stringify(rpc);
        } catch (e) {
            exception = e;
        }

        if (exception) {
            if (typeof(callback) == 'function') {
                callback({
                    result: null,
                    error: {
                        message: 'XHR REQUEST ERROR: ' + exception.message,
                        requestText: requestText
                    }
                });
            }

            return;
        }

        $.ajax({
            url: url,
            processData: false,
            data: requestText,
            dataType:'text',
            type: httpMethod,
            contentType: "application/json",
            success: function (responseText) {
                var responseData;
                var exception;
                try {                    
                    if (typeof(responseText) == 'string') {
                        responseData = JSON.parse(responseText);
                    }
                    
                    if (typeof(responseData) != 'object') {

                        throw new Error("XHR ERROR: Invalid rpc response");
                    }
                }
                catch (e) {
                    exception = e;
                }

                if (typeof(callback) == 'function') {
                    if (exception) {
                        callback({
                            result: null,
                            error: {
                                message: 'XHR RESPONSE ERROR: ' + exception.message,
                                responseText: responseText,
                                responseData: responseData
                            }
                        });
                    } else {
                        callback(responseData);
                    }
                }
            },
            error: function () {
                if (typeof(callback) == 'function') {
                    callback({
                        result: null,
                        error: {
                            message: 'XHR ERROR'
                        }
                    });
                }

            }
        });

    }

};


CrowdparkRpc.invokeRpc(

    'POST',
    'ypu-api-url',
    "FooService.barMethod",
    [
        {foo: "bar"}
    ],
    null,
    function (response) {
        console.log("response=", response);
    }

);