Searching method in asp.net core - asp.net-core

Question

I'm building an asp.net core searching API which should return a list of videos who has the same searched QR code(the QR code is a ForeignKey)
This is the video model:
public class Video
{
[Key]
public int VideoId { get; set; }
public string Exercice { get; set; }
public string Titre { get; set; }
public int Sexe { get; set; }
public int Categorie { get; set; }
public int Level { get; set; }
public string FilePath { get; set; }
public DateTime DateUpload { get; set; } = DateTime.Now;
[ForeignKey("Machine")]
public string Machine_Qr { get; set; }
public Machine machine { get; set; }
public Coache Coache { get; set; }
}
And this is the search controller:
[HttpGet("{Qr}")]
public async Task<IEnumerable<Video>> Search(string qr)
{
IEnumerable<Video> query = _context.videos.Where(e => e.Machine_Qr == qr);
if ((query != null))
return query;
else
return Enumerable.Empty<Video>().ToList();
}
but I tested it and I got an empty list every time.

Answer 1

Edit: your edit fixed the first logic issue in the original question. But the query also needs to have an await since the function is an async Task.
Since your function returns an IEnumerable, you shouldn't need to call .ToList() ... try this:
[HttpGet("{Qr}")]
public async Task<IEnumerable<Video>> Search(string qr)
{
return await _context.videos.Where(e => e.Machine_Qr == qr) ?? Enumerable.Empty<Video>()
}