不断收到错误:“失败:未捕获的语法错误:<未知文件> :: 1中出现意外的令牌T"； (解析云代码)
如果有人可以帮助我，那么这将挽救生命！
If someone could help me with this it would be a life saver!!
(我正在使用PARSE)
(I'm using PARSE)
基本上，此解析作业尝试执行的操作是 1)查询一个称为channel的类的所有对象 2)遍历查询返回的结果"数组中的每个对象 3)调用返回JSON字符串的Google API 4)解析JSON并保存称为视频"的对象的新实例
Basically what this parse job attempts to do is 1) queries all objects of a class called channel 2) loop through each object in the "Results" array which is returned from the query 3) make a call to a Google API which returns a JSON string 4) parse the JSON and save new instances of an Object called Videos
问题是我不断收到错误消息: 失败:未捕获的语法错误:: 1中的意外令牌T 失败:语法错误:输入的意外结尾:
The problem is i keep getting the errors: Failed with: Uncaught SyntaxError: Unexpected token T in :1 Failed with: Uncaught SyntaxError: Unexpected end of input in :0
Parse.Cloud.job("TestFunction", function(request, status) {
var query = new Parse.Query("Channel");
query.find ({
success: function (results) {
var httpRaw;
for (var i = 0; i < results.length; i++) {
var channel_id = results[i].get("channel_id");
Parse.Cloud.httpRequest({
url: 'https://www.googleapis.com/youtube/v3/search?part=snippet&channelId=UCKy1dAqELo0zrOtPkf0eTMw&maxResults=50&order=viewCount&type=video&key=AIzaSyCLGCJOPU8VVj7daoh5HwXZASnmGoc4ylo',
success: function (httpResponse) {
httpRaw = httpResponse.text;
},
error: function (httpResponse) {
console.error('Request failed with response code ' + httpResponse.status);
}
});
var json = JSON.parse(httpRaw);
for (var z = 0; z < json.items.length ; z++){
var video = new Parse.Object("Video");
video.set("video_id", json.items[z].id.videoId.toString());
video.set("video_title", json.items[z].snippet.title.toString());
video.set("video_description", json.items[z].snippet.description.toString());
video.set("video_thumbnail", json.items[z].snippet.thumbnails.medium.url.toString());
video.set("date_published", json.items[z].snippet.publishedAt.toString());
var relation = video.relation("parent_channel");
relation.add(results[i]);
video.save();
}
}
},
error: function() {
}
});
});
我猜测原因是JSON.parse(). HTTP请求在云代码中(并且通常在JavaScript中的任何地方)都是非阻塞的，因此在设置httpRaw之前先评估JSON.parse().
I'm guessing the cause is JSON.parse(). HTTP requests are non-blocking in cloud code (and generally everywhere in JavaScript) so the JSON.parse() is evaluated before httpRaw has been set.
至少，您需要将parse()调用和以下循环移动到HTTP请求的成功处理程序中，以便它们等待直到收到有效响应为止.我建议也使用Promises代替成功/错误回调.
At a minimum, you need to move the parse() call and the following loop into the success handler of your HTTP request so they wait until you have a valid response. I'd suggest using Promises instead of the success/error callbacks as well.
这就是我的处理方式(警告:后面是未经测试的代码...)
Here's how I would go about it (warning: untested code follows ...)
Parse.Cloud.job("TestFunction", function(request, status) {
var query = new Parse.Query("Channel");
query.find().then(function(results) {
var requests = [];
for (var i = 0; i < results.length; i++) {
var channel_id = results[i].get("channel_id");
requests.push(Parse.Cloud.httpRequest({
url: 'https://www.googleapis.com/youtube/v3/search?part=snippet&channelId=UCKy1dAqELo0zrOtPkf0eTMw&maxResults=50&order=viewCount&type=video&key=AIzaSyCLGCJOPU8VVj7daoh5HwXZASnmGoc4ylo'
}));
}
return Parse.Promise.when(requests);
}).then(function(results) {
var videos = [];
for(var i = 0; i < results.length; i++) {
var httpRaw = results[i].text;
var json = JSON.parse(httpRaw);
for (var z = 0; z < json.items.length ; z++){
var video = new Parse.Object("Video");
video.set("video_id", json.items[z].id.videoId.toString());
video.set("video_title", json.items[z].snippet.title.toString());
video.set("video_description", json.items[z].snippet.description.toString());
video.set("video_thumbnail", json.items[z].snippet.thumbnails.medium.url.toString());
video.set("date_published", json.items[z].snippet.publishedAt.toString());
var relation = video.relation("parent_channel");
relation.add(results[i]);
videos.push(video);
}
}
return Parse.Object.saveAll(videos);
});
});