我正在从 Spotify API 获取数据，但运行一段时间后它会标记错误并开始一遍又一

Question

我试图了解 Spotify API。这个小代码控制台记录了用户正在收听的歌曲的当前节拍信息。

它工作正常，但在运行几秒钟后，它会记录一个错误，在该错误之后，它开始一遍又一遍地记录同一节拍的信息。有任何想法吗？这是我的代码，提前谢谢你！

var spotifyApi, spotifyToken;

var current, currentId, timeProgress, beatStart, beatsTotal;

var dataArray = [];

var beatsArray = [];

var spotifyToken = 'token';

spotifyApi = new SpotifyWebApi();

spotifyApi.setAccessToken( spotifyToken );

init();

function init(){

  onReceiveCurrent();

}

function onReceiveCurrent ( err, data ) {

  if (err) {

    console.error(err);

    return;

  }

  spotifyApi.getMyCurrentPlaybackState({}, onReceiveCurrent );

  currentId = data.item.id;

  timeProgress = data.progress_ms;

  spotifyApi.getAudioAnalysisForTrack(currentId, onReceiveAnalysisCallback);

}

function onReceiveAnalysisCallback ( err, data ) {

  if (err) {

    console.error(err);

    return;

  }

  for (var i=0; i<data.beats.length; i++) {

    beatsArray[i] = data.beats[i].start;

  }

  var found = beatsArray.find(function (element) {

        return element >= timeProgress/1000;

  });

  var a = beatsArray.indexOf(found);

  beatStart = data.beats[a];

  console.log(beatStart);

}

这是错误：

Answer 1

您不小心在该方法中创建了一个无限循环onReceiveCurrent，该getMyCurrentPlaybackState方法调用的回调为onReceiveCurrent. 它一遍又一遍地调用自己，直到达到 Spotify 的限制并返回 429。回调应该是一个单独的函数，如下所示：function callSpotify () {&nbsp; spotifyApi.getMyCurrentPlaybackState({}, onReceiveStateCallback );}function onReceiveStateCallback(err, data) {&nbsp; if (err) {&nbsp; &nbsp; console.error(err);&nbsp; &nbsp; return;&nbsp; }&nbsp; currentId = data.item.id;&nbsp; timeProgress = data.progress_ms;&nbsp; spotifyApi.getAudioAnalysisForTrack(currentId, onReceiveAnalysisCallback);}