plugin jikéri

(function ($) {

    "use strict";

    var tokenUrl = "http://localhost/token";
    var token = "";

    // Static method default options.
    var _opts = {
        clientId : "",
        clientSecret : ""
    };

    // Static method.
    $.itApi = function (options) {
        // Override default options with passed-in options.
        _opts = $.extend({}, _opts, options);
//        console.log("options", options, _opts);
        init();
        // Return something awesome.
        return {
            POST:  $.fn.POST,
            GET : $.fn.GET
        };
    };

    var init = function() {
//        console.info("init");
        if (!_opts.clientId) throw "Could not init itApi because no clientId was found.";
        if (!_opts.clientSecret) throw "Could not init itApi because no clientSecret was found.";

        var headers = {
            "Authorization": btoa(_opts.clientId + ":" + _opts.clientSecret),
            "Access-Control-Request-Headers": "x-requested-with"
        };

//        console.log(headers);

        $.ajax
        ({
            type: "POST",
            url: tokenUrl,
            dataType: "json",
            async: false,
            crossDomain: true,
            data : "grant_type=client_credentials&scope=read",
            headers: headers,
            success: function (data, textStatus, jqXHR){
//                console.log(data);
                if((data instanceof Object)){
                    token = data.access_token;
                } else {
                    console.error("Could not init itApi because token response is not an Object.", data);
                }
            },
            error : function(error){
                console.error("Could not init itApi because no token retrieved.", error);
            }
        });

    };


    $.fn.POST = function (url, body, dataType) {
        if (!token) throw "Could not perform AJAX call because no valid tokens was found.";

        var _settings = {
            type : "POST",
            url : url,
            data : body,
            crossDomain : true,
            dataType : "json",
            headers : { "Authorization" : "Bearer " + token }
        };
        if (dataType) _settings.dataType = dataType;

        return $.ajax(_settings);
    };

    $.fn.GET = function (url, dataType) {
        if (!token) throw "Could not perform AJAX call because no valid tokens was found.";

        var _settings = {
            type : "GET",
            url : url,
            crossDomain : true,
            dataType : "json",
            headers : { "Authorization" : "Bearer " + token }
        };
        if (dataType) _settings.dataType = dataType;

        return $.ajax(_settings);
    };

}(jQuery));

utilisation

<script src="dist/itApi.min.js"></script>
<script>
jQuery(function($) {
        var itApi = $.itApi({clientId : "91e68295-527d-49a4-94c7-5726c0fe2dc2",
            clientSecret : "5baa4885-4385-4193-abcb-ed0d225bc45b" });

        itApi.GET("http://localhost/rest-public/rs/dummy/test", "text")
        .done(function(data, textStatus, jqXHR) {
            console.info("success", data, textStatus, jqXHR );
            $("#msg" ).text(data);
            })
        .fail(function(data,  textStatus, errorThrown) {
            console.error("error", data, textStatus );
            $("#msg" ).text(data.responseText);
            })
        .always(function(data, textStatus, errorThrown) {
            console.log( "complete", data, textStatus, errorThrown );
            });
        });
</script>