Windows App Studio. Build Demo. Adding a Twitter Data Source

TwitterDataProvider

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

using System.Text.RegularExpressions;
using LinqToTwitter;

namespace AppStudio.Data
{
    
    public class TwitterDataProvider
    {
        TwitterContext twitterCtx;

        public TwitterDataProvider()
        {
            var auth = new SingleUserAuthorizer()
            {
                CredentialStore = new SingleUserInMemoryCredentialStore
                {
                    ConsumerKey = ConsumerKey,
                    ConsumerSecret = ConsumerSecret,
                    AccessToken = AccessToken,
                    AccessTokenSecret = AccessTokenSecret
                }
            };

            twitterCtx = new TwitterContext(auth);
        }

        public async Task<IEnumerable<DefaultSchema>> Load()
        {
            var statusTweets = await
              (from tweet in twitterCtx.Status
               where tweet.Type == StatusType.Home  &&
                     tweet.Count == 40
               select new DefaultSchema() 
                   { 
                        Title = tweet.User.Name,
                        ImageUrl = tweet.User.ProfileImageUrl,
                        Id = tweet.ID.ToString(),
                        Subtitle = ElapsedSeconds(tweet.CreatedAt),
                        Description = ParseURL(tweet.Text)
                   }).
               ToListAsync();

            return statusTweets;
        }


        private string ElapsedSeconds(DateTime input)
        {
            int mins = Convert.ToInt32(DateTime.UtcNow.Subtract(input).TotalSeconds / 60);
            return mins + " minutes ago";
        }

        private string ParseURL(string s)
        {
            return Regex.Replace(s, @"(http(s)?://)?([\w-]+\.)+[\w-]+(/\S\w[\w- ;,./?%&=]\S*)?",
                new MatchEvaluator((m) =>
                    {
                        string x = m.ToString();
                        return string.Format("<a href=\"{0}\" target=\"_blank\">{0}</a>", x);
                    }));
        }


        #region tkeys
        const string ConsumerKey = "";
        const string ConsumerSecret = "";
        const string AccessToken = "";
        const string AccessTokenSecret = "";
        #endregion
    }
}