//здесь начинается выполнение фоновой задачи
public async void Run(IBackgroundTaskInstance taskInstance)
{
// Get a deferral, to prevent the task from closing prematurely
// while asynchronous code is still running.
BackgroundTaskDeferral deferral = taskInstance.GetDeferral();
// Download the and save JSON to file.
await GetJson();
//Read data from JSON file
var biddingSearchResults = ReadJson();
// Update the live tile with the feed items.
var tileUpdater = new TileUpdater();
tileUpdater.UpdateTile(biddingSearchResults);
// Inform the system that the task is finished.
deferral.Complete();
}
