对 https API 的 IBM Web 操作调用不起作用

Question

我正在使用 IBM Watson 创建一个助手。助手正在将一些信息传递给调用 https API 的 Web 操作，并以 JSON 格式将数据取回助手。

看起来网络操作只是在工作，偶尔会弹出一条消息 "error: The action did not produce a valid response and exited unexpectedly."。目前尚不清楚何时或什么触发了故障。在几秒钟内多次调用完全相同的操作会导致错误消息随机出现（我没有更改调用之间的操作或代码中的任何内容）。如果没有错误，代码将完美运行并提供预期的答案。

这里是压缩代码：

function main(msg){
  const https = require('https');
  var reqUrl = https URL;

return new Promise(function(resolve, reject) {
    https.get(reqUrl, (responseFromAPI) => {
        responseFromAPI.on('data', (chunk) => {
               completeResponse += chunk;
               let movie_info = JSON.parse(completeResponse);
               movie_info = movie_info.results[0];
               console.log(movie_info);
               resolve({movie_info});
        })
        responseFromAPI.on('error', (error) => {
            console.log(error);
            reject(error);
        });
    });
});
}

错误日志如下：

[ “2019-06-06T14:35:32.697875Z 标准错误：undefined:1”， “2019-06-06T14:35:32.697909Z 标准错误：{\"page\":1,\"total_results\":76,\"total_pages\":4,\"results\":[{ \"vote_count\":39,\"id\":541560,\"video\":false,\"vote_average\":5,\"title\":\"The Wind\", \"popularity\":37.299,\"poster_path\":\"\/kcfPHZHSQODLCWdkUVLYATNyEVo.jpg\",\"original_language\":\"en\",\"original_title\":\ "The Wind\",\"genre_ids\":[27,37,53],\"backdrop_path\":\"\/bqi6QBbXmkBar98HJJKEV1HFx71.jpg\",\"adult\":false,\ "overview\":\"A supernatural thriller set in the Western frontier of the late 1800s, The Wind stars Caitlin Gerard as a plains-woman driven mad by the harshness and isolation of the untamed land.\",\"release_date\":\"2019-06-06\"},{\"vote_count\":2832,\"id\":353491, \"video\":false,\"vote_average\":5.6,\"title\":\"The Dark Tower\",\"popularity\":18.474,\"poster_path\":\" \/i9GUSgddIqrroubiLsvvMRYyRy0.jpg\",\"original_language\":\"en\",\"original_title\":\"The Dark Tower\",\"genre_ids\":[28,14,878, 37,27],\"backdrop_path\":\"\/pVVobDO8cezhVPvwD6EBUN0g3mt.jpg\",\"adult\":false,\"overview\":\"The last Gunslinger, Roland Deschain, has been locked in an eternal battle with Walter O’Dim, also known as the", “2019-06-06T14:35:32.697914Z 标准错误：”， “2019-06-06T14:35:32.697951Z 标准错误：语法错误：JSON 输入意外结束”， “2019-06-06T14:35:32.697955Z 标准错误：在 JSON.parse ()”， “2019-06-06T14:35:32.697959Z 标准错误：在 IncomingMessage.responseFromAPI.on（在 NodeActionRunner.init 处评估（/nodejsAction/runner.js:79:45），：10:38）”， “2019-06-06T14:35:32.697963Z 标准错误：在 IncomingMessage.emit (events.js:189:13)”， “2019-06-06T14:35:32.697968Z 标准错误：在 IncomingMessage.Readable.read (_stream_readable.js:487:10)”， “2019-06-06T14:35:32.697972Z stderr: 在流动 (_stream_readable.js:931:34)”, “2019-06-06T14:35:32.697976Z 标准错误：在 resume_ (_stream_readable.js:912:3)”， “2019-06-06T14:35:32.697980Z 标准错误：在 process._tickCallback (internal/process/next_tick.js:63:19)”， "unknown unknown: There was an issue while collecting your logs. Data might be missing." ]

movie_info 是电影和数据的列表，因此代码只获取位置 [0] 中的数据（这里是电影 "The wind"）。

我联系了 API 主机，他们说 API 工作正常，因此问题可能来自网络操作本身。

感谢任何帮助。

Answer 1

您没有解析所有响应，只解析了第一个块

function main(msg){
  const https = require('https');
  var reqUrl = https URL;

return new Promise(function(resolve, reject) {
    https.get(reqUrl, (responseFromAPI) => {
       const chunks = [];
        responseFromAPI
          .on('data', chunk => chunks.push(chunk))
          .on('end', _=> {
               let movie_info = JSON.parse(Buffer.concat(chunks));
               movie_info = movie_info.results[0];
               console.log(movie_info);
               resolve({movie_info});
          })
          .on('error', (error) => {
            console.log(error);
            reject(error);
        });
    });
});
}

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