Add Locale param (#835)

* Add Locale

* Add ArtistRequest, ArtistsRelatedArtistsRequest

* Add ArtistRequest, ArtistsRelatedArtistsRequest

* Add Locale

SpotifyAPI.Web/Clients/ArtistsClient.cs

@@ -16,6 +16,13 @@ namespace SpotifyAPI.Web
       return API.Get<FullArtist>(URLs.Artist(artistId), cancel);
     }
 
+    public Task<FullArtist> Get(string artistId, ArtistRequest request, CancellationToken cancel = default)
+    {
+      Ensure.ArgumentNotNullOrEmptyString(artistId, nameof(artistId));
+
+      return API.Get<FullArtist>(URLs.Artist(artistId), request.BuildQueryParams(), cancel);
+    }
+
     public Task<Paging<SimpleAlbum>> GetAlbums(string artistId, CancellationToken cancel = default)
     {
       Ensure.ArgumentNotNullOrEmptyString(artistId, nameof(artistId));
@@ -38,6 +45,13 @@ namespace SpotifyAPI.Web
       return API.Get<ArtistsRelatedArtistsResponse>(URLs.ArtistRelatedArtists(artistId), cancel);
     }
 
+    public Task<ArtistsRelatedArtistsResponse> GetRelatedArtists(string artistId, ArtistsRelatedArtistsRequest request, CancellationToken cancel = default)
+    {
+      Ensure.ArgumentNotNullOrEmptyString(artistId, nameof(artistId));
+
+      return API.Get<ArtistsRelatedArtistsResponse>(URLs.ArtistRelatedArtists(artistId), request.BuildQueryParams(), cancel);
+    }
+
     public Task<ArtistsResponse> GetSeveral(ArtistsRequest request, CancellationToken cancel = default)
     {
       Ensure.ArgumentNotNull(request, nameof(request));

SpotifyAPI.Web/Clients/Interfaces/IArtistsClient.cs

@@ -31,6 +31,18 @@ namespace SpotifyAPI.Web
     [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1716")]
     Task<FullArtist> Get(string artistId, CancellationToken cancel = default);
 
+    /// <summary>
+    /// Get Spotify catalog information for a single artist identified by their unique Spotify ID.
+    /// </summary>
+    /// <param name="artistId">The Spotify ID of the artist.</param>
+    /// <param name="cancel">The cancellation-token to allow to cancel the request.</param>
+    /// <remarks>
+    /// https://developer.spotify.com/documentation/web-api/reference-beta/#endpoint-get-an-artist
+    /// </remarks>
+    /// <returns></returns>
+    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1716")]
+    Task<FullArtist> Get(string artistId, ArtistRequest request, CancellationToken cancel = default);
+
     /// <summary>
     /// Get Spotify catalog information about an artist’s albums.
     /// Optional parameters can be specified in the query string to filter and sort the response.
@@ -81,5 +93,17 @@ namespace SpotifyAPI.Web
     /// </remarks>
     /// <returns></returns>
     Task<ArtistsRelatedArtistsResponse> GetRelatedArtists(string artistId, CancellationToken cancel = default);
+
+    /// <summary>
+    /// Get Spotify catalog information about artists similar to a given artist.
+    /// Similarity is based on analysis of the Spotify community’s listening history.
+    /// </summary>
+    /// <param name="artistId">The Spotify ID for the artist</param>
+    /// <param name="cancel">The cancellation-token to allow to cancel the request.</param>
+    /// <remarks>
+    /// https://developer.spotify.com/documentation/web-api/reference-beta/#endpoint-get-an-artists-related-artists
+    /// </remarks>
+    /// <returns></returns>
+    Task<ArtistsRelatedArtistsResponse> GetRelatedArtists(string artistId, ArtistsRelatedArtistsRequest request, CancellationToken cancel = default);
   }
 }

SpotifyAPI.Web/Models/Request/AlbumRequest.cs

@@ -8,5 +8,16 @@ namespace SpotifyAPI.Web
     /// <value></value>
     [QueryParam("market")]
     public string? Market { get; set; }
+
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
   }
 }

SpotifyAPI.Web/Models/Request/AlbumTracksRequest.cs

@@ -24,6 +24,17 @@ namespace SpotifyAPI.Web
     /// <value></value>
     [QueryParam("offset")]
     public int? Offset { get; set; }
+
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
   }
 }
 

SpotifyAPI.Web/Models/Request/AlbumsRequest.cs

@@ -29,6 +29,17 @@ namespace SpotifyAPI.Web
     /// <value></value>
     [QueryParam("market")]
     public string? Market { get; set; }
+
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
   }
 }
 

SpotifyAPI.Web/Models/Request/ArtistRequest.cs

@@ -0,0 +1,19 @@
+using System.Collections.Generic;
+
+namespace SpotifyAPI.Web
+{
+  public class ArtistRequest : RequestParams
+  {
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+  }
+}
+

SpotifyAPI.Web/Models/Request/ArtistsAlbumsRequest.cs

@@ -23,6 +23,17 @@ namespace SpotifyAPI.Web
     [QueryParam("market")]
     public string? Market { get; set; }
 
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+
     /// <summary>
     /// The number of album objects to return. Default: 20. Minimum: 1. Maximum: 50. For example: limit=2
     /// </summary>

SpotifyAPI.Web/Models/Request/ArtistsRelatedArtistsRequest.cs

@@ -0,0 +1,17 @@
+namespace SpotifyAPI.Web
+{
+  public class ArtistsRelatedArtistsRequest : RequestParams
+  {
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+  }
+}
+

SpotifyAPI.Web/Models/Request/ArtistsRequest.cs

@@ -21,6 +21,17 @@ namespace SpotifyAPI.Web
     /// <value></value>
     [QueryParam("ids")]
     public IList<string> Ids { get; }
+
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
   }
 }
 

SpotifyAPI.Web/Models/Request/ArtistsTopTracksRequest.cs

@@ -19,6 +19,17 @@ namespace SpotifyAPI.Web
     /// <value></value>
     [QueryParam("market")]
     public string Market { get; }
+
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
   }
 }
 

SpotifyAPI.Web/Models/Request/CategoryPlaylistsRequest.cs

@@ -10,6 +10,17 @@ namespace SpotifyAPI.Web
     [QueryParam("country")]
     public string? Country { get; set; }
 
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+
     /// <summary>
     /// The maximum number of items to return. Default: 20. Minimum: 1. Maximum: 50.
     /// </summary>

SpotifyAPI.Web/Models/Request/EpisodeRequest.cs

@@ -13,6 +13,17 @@ namespace SpotifyAPI.Web
     /// <value></value>
     [QueryParam("market")]
     public string? Market { get; set; }
+
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
   }
 }
 

SpotifyAPI.Web/Models/Request/EpisodesRequest.cs

@@ -33,6 +33,17 @@ namespace SpotifyAPI.Web
     /// <value></value>
     [QueryParam("market")]
     public string? Market { get; set; }
+
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
   }
 }
 

SpotifyAPI.Web/Models/Request/FollowGetCurrentUserRequest.cs

@@ -25,6 +25,17 @@ namespace SpotifyAPI.Web
     [QueryParam("limit")]
     public int? Limit { get; set; }
 
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+
     /// <summary>
     /// The last artist ID retrieved from the previous request.
     /// </summary>

SpotifyAPI.Web/Models/Request/LibraryAlbumsRequest.cs

@@ -24,6 +24,17 @@ namespace SpotifyAPI.Web
     /// <value></value>
     [QueryParam("market")]
     public string? Market { get; set; }
+
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
   }
 }
 

SpotifyAPI.Web/Models/Request/LibraryEpisodesRequest.cs

@@ -24,5 +24,16 @@ namespace SpotifyAPI.Web
     /// <value></value>
     [QueryParam("market")]
     public string? Market { get; set; }
+
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
   }
 }

SpotifyAPI.Web/Models/Request/LibraryTracksRequest.cs

@@ -24,6 +24,17 @@ namespace SpotifyAPI.Web
     /// <value></value>
     [QueryParam("market")]
     public string? Market { get; set; }
+
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
   }
 }
 

SpotifyAPI.Web/Models/Request/NewReleasesRequest.cs

@@ -11,6 +11,17 @@ namespace SpotifyAPI.Web
     [QueryParam("country")]
     public string? Country { get; set; }
 
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+
     /// <summary>
     /// The maximum number of items to return. Default: 20. Minimum: 1. Maximum: 50.
     /// </summary>

SpotifyAPI.Web/Models/Request/PersonalizationTopRequest.cs

@@ -9,6 +9,17 @@ namespace SpotifyAPI.Web
     [QueryParam("limit")]
     public int? Limit { get; set; }
 
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+
     /// <summary>
     /// The index of the first entity to return. Default: 0 (i.e., the first track). Use with limit to get the next set of entities.
     /// </summary>

SpotifyAPI.Web/Models/Request/PlayerCurrentPlaybackRequest.cs

@@ -25,6 +25,17 @@ namespace SpotifyAPI.Web
     [QueryParam("market")]
     public string? Market { get; set; }
 
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+
     /// <summary>
     ///   This is set to `"track", "episode"` by default.
     /// </summary>

SpotifyAPI.Web/Models/Request/PlayerCurrentlyPlayingRequest.cs

@@ -29,6 +29,17 @@ namespace SpotifyAPI.Web
     [QueryParam("market")]
     public string? Market { get; set; }
 
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+
     /// <summary>
     /// A comma-separated list of item types that your client supports besides the default track type.
     /// Valid types are: track and episode. An unsupported type in the response is expected to be represented

SpotifyAPI.Web/Models/Request/PlayerRecentlyPlayedRequest.cs

@@ -9,6 +9,17 @@ namespace SpotifyAPI.Web
     [QueryParam("limit")]
     public int? Limit { get; set; }
 
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+
     /// <summary>
     /// A Unix timestamp in milliseconds. Returns all items after (but not including) this cursor position.
     /// If after is specified, before must not be specified.

SpotifyAPI.Web/Models/Request/PlaylistCurrentUsersRequest.cs

@@ -9,6 +9,17 @@ namespace SpotifyAPI.Web
     [QueryParam("limit")]
     public int? Limit { get; set; }
 
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+
     /// <summary>
     /// The index of the first playlist to return.
     /// Default: 0 (the first object). Maximum offset: 100.000. Use with limit to get the next set of playlists.

SpotifyAPI.Web/Models/Request/PlaylistGetItemsRequest.cs

@@ -65,6 +65,17 @@ namespace SpotifyAPI.Web
     [QueryParam("market")]
     public string? Market { get; set; }
 
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+
     /// <summary>
     ///   This is set to `"track", "episode"` by default.
     /// </summary>

SpotifyAPI.Web/Models/Request/PlaylistGetRequest.cs

@@ -39,6 +39,17 @@ namespace SpotifyAPI.Web
     [QueryParam("market")]
     public string? Market { get; }
 
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+
     /// <summary>
     ///   This is set to `"track", "episode"` by default.
     /// </summary>

SpotifyAPI.Web/Models/Request/PlaylistGetUsersRequest.cs

@@ -16,6 +16,17 @@ namespace SpotifyAPI.Web
     /// <value></value>
     [QueryParam("offset")]
     public int? Offset { get; set; }
+
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
   }
 }
 

SpotifyAPI.Web/Models/Request/RecommendationsRequest.cs

@@ -60,6 +60,17 @@ namespace SpotifyAPI.Web
     [QueryParam("market")]
     public string? Market { get; set; }
 
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+
     /// <summary>
     /// Multiple values. For each tunable track attribute, a hard floor on the selected track attribute’s value can be provided.
     /// See tunable track attributes below for the list of available options.

SpotifyAPI.Web/Models/Request/SearchRequest.cs

@@ -59,6 +59,17 @@ namespace SpotifyAPI.Web
     [QueryParam("market")]
     public string? Market { get; set; }
 
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
+
     /// <summary>
     /// Maximum number of results to return.
     /// Default: 20

SpotifyAPI.Web/Models/Request/TrackRequest.cs

@@ -9,6 +9,17 @@ namespace SpotifyAPI.Web
     /// <value></value>
     [QueryParam("market")]
     public string? Market { get; set; }
+
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
   }
 }
 

SpotifyAPI.Web/Models/Request/TracksRequest.cs

@@ -29,6 +29,17 @@ namespace SpotifyAPI.Web
     /// <value></value>
     [QueryParam("market")]
     public string? Market { get; set; }
+
+    /// <summary>
+    /// The desired language, consisting of an ISO 639-1 language code and an ISO 3166-1 alpha-2 country code,
+    /// joined by an underscore. For example: es_MX, meaning "Spanish (Mexico)".
+    /// Provide this parameter if you want the category strings returned in a particular language.
+    /// Note that, if locale is not supplied, or if the specified language is not available,
+    /// the category strings returned will be in the Spotify default language (American English).
+    /// </summary>
+    /// <value></value>
+    [QueryParam("locale")]
+    public string? Locale { get; set; }
   }
 }