[Answer]-Viewing the JSON from an AJAX call

you can use the console.log(data);

like this:

$('#search').keyup(function() {
        $.ajax({
            type: "GET",
            url: "/main/search/",
            data: {
                'search_text': $('#search').val()
            },
            success: function(data) {
                console.log(data);
            },

            dataType: 'json'
        });
    });

You could also open up your console and look in the network tab. From there, you should be able to see all the XHR requests, view the responses, headers, etc