jQuery getJSON对于删除的抽搐通道不起作用

问题描述

我正在尝试创建一个抽搐频道列表，以显示谁在线/离线并显示该人已删除该帐户的消息.问题是，即使请求返回的是带有几个属性的JSON文件，即使人员帐户不再存在，getJSON方法中也没有任何作用.

I am trying to make a list of twitch channels that shows who is online/offline and show a message of the person has deleted there account. The problem is that nothing works inside the getJSON method if the persons account no longer exists even though the request returns a JSON file with a couple of properties.

Codepen: http://codepen.io/ZacharyKearns/pen/obxREy/

https://api.twitch.tv/kraken/channels/brunofin //已删除频道

{"error":"Unprocessable Entity","status":422,"message":"Channel 'brunofin' is not available on Twitch"}

这是代码；

var streamers = ["freecodecamp", "medrybw", "brunofin", "storbeck", "terakilobyte", "habathcx", "RobotCaleb", "thomasballinger", "noobs2ninjas", "beohoff"],
 streamerList = $('ul.list-group');

$.each(streamers, function(i) {

 $.getJSON("https://api.twitch.tv/kraken/channels/" + streamers[i], function(channelData) {

  $.getJSON("https://api.twitch.tv/kraken/streams/" + streamers[i], function(streamData) {

   if (channelData.status == 422) {

    var listItem = $('<li/>').addClass('list-group-item').appendTo(streamerList),
     nameLink = $('<a/>').html(channelData.message).appendTo(listItem);

   } else {

    var listItem = $('<li/>').addClass('list-group-item').appendTo(streamerList),
     nameLink = $('<a/>').html(channelData.display_name).appendTo(listItem);

   }
  });
 });
});

推荐答案

https://api. twitch.tv/kraken/channels/brunofin 返回了422网络错误代码.它永远不会输入$.getJSON的成功处理程序".

https://api.twitch.tv/kraken/channels/brunofin comes back with a 422 network error code. It will never enter the 'success-handler' of the $.getJSON.

您应该在json调用上添加.fail()处理程序.

You should add a .fail() handler on the json call.

$.getJSON("https://api.twitch.tv/kraken/channels/" + streamers[i],  function(channelData) {

   }).fail(function(err) {
     //handle fail here
   });

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