loadJSON

var jsonData = require('../../file.json');

class blah extends React.Component {

render(){
    var data; 

    function loadJSON(jsonfile, callback) {   

        var jsonObj = new XMLHttpRequest();
        jsonObj.overrideMimeType("application/json");
        jsonObj.open('GET', "../../file.json", true);
        jsonObj.onreadystatechange = function () {
              if (jsonObj.readyState == 4 && jsonObj.status == "200") {
                callback(jsonObj.responseText);
              }
        };
        jsonObj.send(null);  
     }

    function load() {

        loadJSON(jsonData, function(response) {
            data = JSON.parse(response);
            console.log(data);
        });
    }

    load();
}

}