namespace RetGet.data

[DataMember]

    public int Id { get; set; }
    [DataMember]

    public string RetPath { get; set; }

}
}

//Ref to the model
    RetFil retfil = new RetFil();
    //Network drive path (Might have to change/Access permissions)
    string dirPath = @"HERE IS THE NETWORK DRIVE PATH";

    List<string> files;
    List<object> filesFormatted;



    public void SetUpLists()
    {

        //Collects all the .ret files in the dirPath and it's subfolders.
        files = new List<string>(Directory.GetFiles(dirPath, "*.ret", SearchOption.AllDirectories));
        filesFormatted = new List<object>();


    }

    // GET: api/Ret/5
    [ResponseType(typeof(RetFil))]
    public IHttpActionResult GetRet(string id)
    {

        SetUpLists();

        //Adds each filename and format it (removing "" from the file path) to the list of objects
        foreach (var file in files)
        {

            var pathToString = file.Substring(file.LastIndexOf("\"));
            if (pathToString.Contains(id))
            {
                filesFormatted.Add(new { pathToString });
            }

        }

        //Returns the list of object. Web Api will convert to JSON automatic.

        return Ok(filesFormatted);
    }