Reactjs 无法在我的Spotify帐户中保存我的新播放列表（我得到的曲目列表为空）

这是我的util模块Spotify中的函数：

这是我调用函数的容器模块：（后跟render函数）

保存播放列表（）{
const trackUris=this.state.playlitracks.map（track=>track.uri）；
Spotify.saveplayli1（this.state.playliName，trackUris）。然后（（）=>{
这是我的国家({
播放名：“新建播放列表”，
播放曲目：[]
});
})
}
render（）{
返回(



);
}

这是带有安全按钮的播放列表组件>

render（）{
返回(
保存到SPOTIFY
);
}

它正在使用空列表保存，我收到以下错误：

{ “错误”：{ “状态”：400， “消息”：“无效的曲目uri:null” }

---

}

最后，这是codecademy中的干扰项目，问题是从API调用时没有加载URI，这是因为它没有作为列表的一部分包含在搜索函数中：

search(term) {
    const accessToken = Spotify.getAccessToken();
    return fetch(`https://api.spotify.com/v1/search?type=track&q=${term}`, {
      headers: {
        Authorization: `Bearer ${accessToken}`,
      },
    }).then(response => {
      return response.json();
    }).then(jsonResponse => {
      if (!jsonResponse.tracks) {
        return [];
      }
      return jsonResponse.tracks.items.map(track => ({
        id: track.id,
        name: track.name,
        artist: track.artists[0].name,
        album: track.album.name,
        uri: track.uri //this was missing!!!!
      }));
    });
  },

---

您是否将this.savePlaylist=this.savePlaylist.bind（this）放在构造函数中？是的，我认为问题在于savePlaylist 1

savePlaylist() {
    const trackUris = this.state.playlistTracks.map(track => track.uri);
    Spotify.savePlaylist1(this.state.playlistName, trackUris).then(() => {
      this.setState({
        playlistName: 'New Playlist',
        playlistTracks: []
      });
    })
  }


 render() {
    return (
      <div>
        <div className="App" >
          < SearchBar onSearch={this.search} />
          <div className="App-playlist">
            < SearchResults searchResults={this.state.searchResults}
              onAdd={this.addTrack} />
            < Playlist playlistName={this.state.playlistName}
              playlistTracks={this.state.playlistTracks}
              onRemove={this.removeTrack}
              onNameChange={this.updatePlaylistName}
              onSave={this.savePlaylist} />
          </div>
        </div>
      </div>);
  }

render() {
    return (
      <div className="Playlist">
        <input defaultValue={"New Playlist"} onChange={this.handleNameChange} />
        <TrackList
          tracks={this.props.playlistTracks}
          onRemove={this.props.onRemove}
          isRemoval={true}
        />
        <button className="Playlist-save" onClick={this.props.onSave}>
          SAVE TO SPOTIFY
        </button>
      </div>
    );
  }

search(term) {
    const accessToken = Spotify.getAccessToken();
    return fetch(`https://api.spotify.com/v1/search?type=track&q=${term}`, {
      headers: {
        Authorization: `Bearer ${accessToken}`,
      },
    }).then(response => {
      return response.json();
    }).then(jsonResponse => {
      if (!jsonResponse.tracks) {
        return [];
      }
      return jsonResponse.tracks.items.map(track => ({
        id: track.id,
        name: track.name,
        artist: track.artists[0].name,
        album: track.album.name,
        uri: track.uri //this was missing!!!!
      }));
    });
  },