public async Task <Tuple <string, EchoSong> > DynamicCreate(EchoPlaylistType type = EchoPlaylistType.ArtistRadio, IEnumerable <string> artistIds = null, IEnumerable <string> artists = null, IEnumerable <string> songIds = null, IEnumerable <string> genres = null,
IEnumerable <string> trackIds = null, bool returnTrack = true)
{
var parameters = new Dictionary <string, object>();
switch (type)
{
case EchoPlaylistType.Artist:
case EchoPlaylistType.ArtistDescription:
throw new ArgumentOutOfRangeException("type", "Basic playlist doesn't support artist and artist-description type.");
case EchoPlaylistType.ArtistRadio:
parameters.Add("type", "artist-radio");
break;
case EchoPlaylistType.SongRadio:
parameters.Add("type", "song-radio");
break;
case EchoPlaylistType.GenreRadio:
parameters.Add("type", "genre-radio");
break;
}
if (artistIds != null)
{
parameters.Add("artist_id", artistIds);
}
if (artists != null)
{
parameters.Add("artist", artists);
}
if (songIds != null)
{
parameters.Add("song_id", songIds);
}
if (genres != null)
{
parameters.Add("genre", genres);
}
if (trackIds != null)
{
parameters.Add("track_id", trackIds);
}
if (returnTrack)
{
parameters.Add("results", "1");
}
parameters.Add("api_key", _echonest.ApiKey);
var response = await new EchoRequest(new Uri(EchoConst.MethodBase + "playlist/dynamic/create"), parameters).Execute();
string sessionId = null;
EchoSong track = null;
var token = response.SelectToken("response.songs");
if (token != null && token.HasValues)
{
track = token.Select(EchoSong.FromJson).FirstOrDefault();
}
if (response["response"]["session_id"] != null)
{
sessionId = response["response"]["session_id"].Value <string>();
}
return(new Tuple <string, EchoSong>(sessionId, track));
}
/// <summary>
/// Returns a basic playlist. A basic playlist is generated once from an initial set of parameters, and returned as an ordered list of songs.
/// <remarks>
/// Songs are never repeated.
/// Artists may be repeated.
/// </remarks>
/// </summary>
/// <returns></returns>
public async Task <List <EchoSong> > Basic(EchoPlaylistType type = EchoPlaylistType.ArtistRadio, IEnumerable <string> artistIds = null, IEnumerable <string> artists = null, IEnumerable <string> songIds = null, IEnumerable <string> genres = null,
IEnumerable <string> trackIds = null, int count = 15)
{
var parameters = new Dictionary <string, object>();
switch (type)
{
case EchoPlaylistType.Artist:
case EchoPlaylistType.ArtistDescription:
throw new ArgumentOutOfRangeException("type", "Basic playlist doesn't support artist and artist-description type.");
case EchoPlaylistType.ArtistRadio:
parameters.Add("type", "artist-radio");
break;
case EchoPlaylistType.SongRadio:
parameters.Add("type", "song-radio");
break;
case EchoPlaylistType.GenreRadio:
parameters.Add("type", "genre-radio");
break;
}
if (artistIds != null)
{
parameters.Add("artist_id", artistIds);
}
if (artists != null)
{
parameters.Add("artist", artists);
}
if (songIds != null)
{
parameters.Add("song_id", songIds);
}
if (genres != null)
{
parameters.Add("genre", genres);
}
if (trackIds != null)
{
parameters.Add("track_id", trackIds);
}
if (count > 0)
{
parameters.Add("results", count.ToString(CultureInfo.InvariantCulture));
}
parameters.Add("api_key", _echonest.ApiKey);
var response = await new EchoRequest(new Uri(EchoConst.MethodBase + "playlist/basic"), parameters).Execute();
var token = response.SelectToken("response.songs");
if (token != null && token.HasValues)
{
return(new List <EchoSong>(token.Select(EchoSong.FromJson).ToList()));
}
return(null);
}
public async Task <List <EchoSong> > Static(EchoPlaylistType type = EchoPlaylistType.Artist,
float variety = 0.5f, IEnumerable <string> artistIds = null, IEnumerable <string> artists = null,
IEnumerable <string> songIds = null, IEnumerable <string> trackIds = null, string genres = null,
int count = 15, IEnumerable <string> descriptions = null, IEnumerable <string> styles = null, IEnumerable <string> moods = null)
{
var parameters = new Dictionary <string, object>();
switch (type)
{
case EchoPlaylistType.Artist:
parameters.Add("type", "artist");
break;
case EchoPlaylistType.ArtistRadio:
parameters.Add("type", "artist-radio");
break;
case EchoPlaylistType.ArtistDescription:
parameters.Add("type", "artist-description");
break;
case EchoPlaylistType.SongRadio:
parameters.Add("type", "song-radio");
break;
case EchoPlaylistType.GenreRadio:
parameters.Add("type", "genre-radio");
break;
}
if (artistIds != null)
{
parameters.Add("artist_id", artistIds);
}
if (artists != null)
{
parameters.Add("artist", artists);
}
if (songIds != null)
{
parameters.Add("song_id", songIds);
}
if (genres != null)
{
parameters.Add("genre", genres);
}
if (trackIds != null)
{
parameters.Add("track_id", trackIds);
}
if (count > 0)
{
parameters.Add("results", count.ToString(CultureInfo.InvariantCulture));
}
if (descriptions != null)
{
parameters.Add("description", descriptions);
}
if (styles != null)
{
parameters.Add("style", styles);
}
if (moods != null)
{
parameters.Add("mood", moods);
}
parameters.Add("api_key", _echonest.ApiKey);
var response = await new EchoRequest(new Uri(EchoConst.MethodBase + "playlist/static"), parameters).Execute();
var token = response.SelectToken("response.songs");
if (token != null && token.HasValues)
{
return(new List <EchoSong>(token.Select(EchoSong.FromJson).ToList()));
}
return(null);
}