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JavaScript

Alcibiades Montas
Alcibiades Montas
5,974 Points
Posted by Alcibiades Montas
Alcibiades Montas
5,974 Points

What does Javascript means?

Hi guys, currently building a Foursquare API script and looking over some code. I think I found something that will definitely help me but confused as to what exactly it does, can someone walk me over it?

var foursquareApi = {
            clientId: "4B4T220TQF43NIUKJAQI1DNASEOI12NBTTUNZ5YOETDDQORF",
            clientSecret: "YDBCTHJECBNMQVFWRC1GU5RFGGPHRY4Y1VGHSVD4PLMGRKNB",
            redirectUrl : "http://almontas.github.io/FourSquareJax/",


            //authorizes my app 
            authorize: function(){
                var url = "https://foursquare.com/oauth2/access_token";
                    url += "?client_id="+this.clientId;
                    url += "&response_type=token";
                    url += "&redirect_uri="+this.redirectUrl;



                    this.getJson(url, function(data){
                        console.log("authorize",data);
                    })  //what does this do?
            },

            //gets Authentication Code
            getCode : function(){
                var url = "http://almontas.github.io/FourSquareJax/";
                    url += "#access_token=ACCESS_TOKEN";

                    this.getJson(url, function(data){
                        console.log("ACCESS_TOKEN",data);
                    })  //what does this do?



            //gets parameter from above sends request back to API
            },
            getJson: function(url, callback){
                $.getJSON(url, function(data) {
                  callback(data);
                });//what does this do?

1 Answer

Daniel Tedman
PLUS
Daniel Tedman
Courses Plus Student 7,244 Points
Daniel Tedman
Daniel Tedman
Courses Plus Student 7,244 Points

The first function is for authentication using using OAuth. If you are new to using OAuth, see the getting started guides.

It is not clear what the second function is for but it has something to to with the FourSquareJax page. It uses the authentication token retrieved in the first function.

The third function is convenience function they have written which uses the jQuery getJSON function to perform an AJAX request using the provided url and callback function. The callback function is called when the AJAX request has been completed.

My suggestion would be to study the documentation. The tricky bit is the authentication, once that is done, you make requests to each of the endpoints listed in the table on that site.