Win8 JS library boilerplate for REST services

win8-js-restapi-boilerplate.js

(function (globals) {

    var

    // The username and password for BASIC auth
    username,
    password,

    // CHANGE THIS
    apiRoot = "https://api.foo.com/version",

    get = function (url, params, success, error) {
        var queryStr = "";
        if (params !== null) {
            queryStr = "?"
            Object.keys(params).forEach(function (key, i) {
                if (i !== 0) { queryStr = queryStr + "&"; }
                queryStr = queryStr + key + "=" + encodeURIComponent(params[key]);
            });
        }
        
        WinJS.xhr({ user: username, password: password, url: url + queryStr }).then(
            function (request) {
                if (typeof success === "function") {
                    success(JSON.parse(request.responseText));
                }
            },
            function (request) {
                if (typeof error === "function") {
                    error(JSON.parse(request.responseText));
                }
            }
        );
    },

    post = function (url, dataHash, success, error) {
        var dataStr = "";
        Object.keys(dataHash).forEach(function (key, i) {
            if (i !== 0) { dataStr = dataStr + "&"; }
            dataStr = dataStr + key + "=" + encodeURIComponent(dataHash[key]);
        });

        WinJS.xhr({
            type: "post", user: username, password: password, url: url,
            headers: { "Content-type": "application/x-www-form-urlencoded" },
            data: dataStr
        }).then(
            function (request) {
                if (typeof success === "function") {
                    success(JSON.parse(request.responseText));
                }
            },
            function (request) {
                if (typeof success === "function") {
                    error(JSON.parse(request.responseText));
                }
            }
        );
    },

    // CHANGE "foo"
    foo = globals.foo = {};

    /* These are the wrappers for the Twilio REST API */

    foo.auth = function (u, p) {
        username = u;
        password = p;
    };

    foo.restApiCall = function (param1, param2, success, error) {
        post(apiRoot + "/path/to/resource", { param1: param1, param2: param2 }, success, error );
    };


}(window));