Qt Quick Demo - Tweet Search

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 import QtQuick 2.0
 import "tweetsearch.mjs" as Helper

 Item {
     id: wrapper

     // Insert valid consumer key and secret tokens below
     // See https://dev.twitter.com/apps
     property string consumerKey : ""
     property string consumerSecret : ""
     property string bearerToken : ""

     property variant model: tweets
     property string from : ""
     property string phrase : ""

     signal isLoaded

     ListModel { id: tweets }

     function encodePhrase(x) { return encodeURIComponent(x); }

     function reload() {
         tweets.clear()

         if (from == "" && phrase == "")
             return;

         var req = new XMLHttpRequest;
         req.open("GET", "https://api.twitter.com/1.1/search/tweets.json?from=" + from +
                         "&count=10&q=" + encodePhrase(phrase));
         req.setRequestHeader("Authorization", "Bearer " + bearerToken);
         req.onload = function() {
             var objectArray = JSON.parse(req.responseText);
             if (objectArray.errors !== undefined) {
                 console.log("Error fetching tweets: " + objectArray.errors[0].message)
             } else {
                 for (var key in objectArray.statuses) {
                     var jsonObject = objectArray.statuses[key];
                     tweets.append(jsonObject);
                 }
             }
             wrapper.isLoaded()
         }
         req.send();
     }

     onPhraseChanged: reload();
     onFromChanged: reload();

     Component.onCompleted: {
         if (consumerKey === "" || consumerSecret == "") {
             bearerToken = encodeURIComponent(Helper.demoToken())
             return;
         }

         var authReq = new XMLHttpRequest;
         authReq.open("POST", "https://api.twitter.com/oauth2/token");
         authReq.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
         authReq.setRequestHeader("Authorization", "Basic " + Qt.btoa(consumerKey + ":" + consumerSecret));
         authReq.onreadystatechange = function() {
             if (authReq.readyState === XMLHttpRequest.DONE) {
                 var jsonResponse = JSON.parse(authReq.responseText);
                 if (jsonResponse.errors !== undefined)
                     console.log("Authentication error: " + jsonResponse.errors[0].message)
                 else
                     bearerToken = jsonResponse.access_token;
             }
         }
         authReq.send("grant_type=client_credentials");
     }

 }