Sinatra, JavaScript Cross-Domain Requests JSON

Question

I run a REST-API build on top of Sinatra. Now I want to write a jQuery Script that fetches data from the API.

Sinatra is told to response with JSON

befor         


        

Answer 1

Try to call

$.getJSON("http://example.com/?callback=?",function(data) { alert(data); });

In this sample main keyword is construction "callback=?", so you need to process this param in your server-side script, and make a valid JSONP, like this:

function({ "foo" : "bar" });

Where "function" is random data, which is generated by jQuery automatically. Read more here about jQuery and cross-domain JSONP.