BackEnd/YTManager/Controllers/Videos.cs

using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;

namespace YTManager.Controllers {
    [Produces("application/json")]
    [Route("api/Videos")]
    public class VideosController : Controller {
        // DB context used for all these calls.
        private readonly MediaDB db;

        // Constructor to fetch the db context.
        public VideosController(MediaDB context) => db = context;

        // GET: api/Videos
        [HttpGet]
        public async Task<IActionResult> GetVideos() {
            return Ok(await db.Videos.OrderByDescending(i => i.AddedtoDB).ToListAsync());
        }

        // GET: api/Videos/5
        [HttpGet("{id}")]
        public async Task<IActionResult> GetVideo([FromRoute] long id){
            // Check if we were able to parse.
            if (!ModelState.IsValid) return BadRequest(ModelState);

            // Attempt to get the video from the database.
            var video = await db.Videos.SingleOrDefaultAsync(m => m.PrimaryKey == id);

            // If the video wasn't found then send back not foud.
            if (video == null)
                return NotFound();

            // Otherwise send back the video.
            return Ok(video);
        }
    }
}