[Nov 2021] Public information can now be accessed without authentication

struct AnimeList: Codable {
    var data: [Node]?
}

struct Node: Codable {
    var node: Anime?
    
    struct Anime: Codable {
        var id: Int?
        var title: String?
        var main_picture: MainPicture?
        var rank: Int?
        var mean: Double?
        var alternative_titles: AlternateTitles?
    }
}

class TwitchAPI:
    CLIENT_ID = "kimne78kx3ncx6brgo4mv6wki5h1ko"

• Confidential:
    Clients capable of maintaining the confidentiality of their
    credentials (e.g., client implemented on a secure server with
    restricted access to the client credentials), or capable of secure
    client authentication using other means.

• Public:
    Clients incapable of maintaining the confidentiality of their
    credentials (e.g., clients executing on the device used by the
    resource owner, such as an installed native application or a web
    browser-based application), and incapable of secure client
    authentication via any other means.

GET https://api.myanimelist.net/v2/anime?q=Lycoris_Recoil&nsfw=true

...
"data": [
        {
            "node": {
                "id": 54440,
                "title": "Lycoris Recoil (Shinsaku Animation)",
                "main_picture": {...}
            }
        },
        {
            "node": {
                "id": 50709,
                "title": "Lycoris Recoil",
                "main_picture": {...}
            }
        },
...

GET https://api.myanimelist.net/v2/anime?q=Lycoris%20Recoil&nsfw=true

...
"data": [
        {
            "node": {
                "id": 50709,
                "title": "Lycoris Recoil",
                "main_picture": {...}
            }
        },
        {
            "node": {
                "id": 54440,
                "title": "Lycoris Recoil (Shinsaku Animation)",
                "main_picture": {...}
            }
        },
...

@Headers("X-MAL-CLIENT-ID: $CLIENT_ID")
    @GET("/v2/anime/season/{year}/{season}")
    suspend fun getSeasonalAnimes(
        @Query("year") year: Int,
        @Query("season") season: String,
    ): Response<SeasonalAnimes>

@GET("/v2/anime/season/{year}/{season}")
    suspend fun getSeasonalAnimes(
        @Header("X-MAL-CLIENT-ID") clientId: String,
        @Path("year") year: Int,
        @Path("season") season: String,
        @Query("limit") limit: Int
    ): Response<SeasonalAnimes>