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PropertyCross Demo App

 import QtQuick 2.0
 import Felgo 3.0

 Item {
   readonly property bool loading: HttpNetworkActivityIndicator.enabled

   Component.onCompleted: {
     HttpNetworkActivityIndicator.activationDelay = 0
   }

   //search for locations called "text"
   function search(text, callback) {
     _.sendRequest({
                     action: "search_listings",
                     page: 1,
                     place_name: text
                   }, callback)
   }

   function searchByLocation(latitude, longitude, callback) {
     _.sendRequest({
                     action: "search_listings",
                     page: 1,
                     centre_point: latitude + "," + longitude
                   }, callback)
   }

   //repeat last request for another page number
   function repeatForPage(page, callback) {
     var params = _.lastParamMap
     params.page = page
     _.sendRequest(params, callback)
   }

   Item {
     id: _ //private members

     property var lastParamMap: ({})

     //server API URL with common parameters already included
     readonly property string serverUrl: "http://api.nestoria.co.uk/api?country=uk&pretty=1&encoding=json&listing_type=buy"

     //add GET parameters to serverUrl
     function buildUrl(paramMap) {
       var url = serverUrl
       for(var param in paramMap) {
         url += "&" + param + "=" + paramMap[param]
       }
       return url
     }

     function sendRequest(paramMap, callback) {
       var method = "GET"
       var url = buildUrl(paramMap)
       console.debug(method + " " + url)

       HttpRequest.get(url)
       .then(function(res) {
         var content = res.text
         try {
           var obj = JSON.parse(content)
         } catch(ex) {
           console.error("Could not parse server response as JSON:", ex)
           return
         }
         console.debug("Successfully parsed JSON response")
         callback(obj)
       })
       .catch(function(err) {
       })

       lastParamMap = paramMap