hashtag

namespace HashTagAnalyser.Controllers
{
    public class TweetsController : ApiController
    {
        [HttpGet]
        [Route("api/user/{userName}")]
        public async Task<IHttpActionResult> GetTweets(string userName)
        {
            Auth.SetUserCredentials("8NpXC8v84DRas4qsn2KCBMQRb", "ckND9vF3Kr8KBJ3BQXVn9zzEXCZCefMYAGIqtNScUijoFcAgKH", "936315930-WJlbXnyvqlJYx5j5s6U5TI3OYtqbQbnF07eFqnm3", "GuQVe3cykwOPPk8bXEvGPghjBKfUvkP7O7VWXgFP6MKP1");
            List<string> hashtags = new List<string>();
            var user = await  TimelineAsync.GetUserTimeline(userName, 3250);
            var timeLine = user.Select(m => m.Hashtags);
            var exist = timeLine.Select(k => k.Select(o => o.Text));
            foreach (var item in exist)
            {
                foreach (var i in item)
                {
                    if (!(i.IsNullOrEmpty()))
                    {
                        hashtags.Add(i);
                    }
                }
            }
            return Ok(hashtags);
        }
    }
}