解析云httpRequest不返回响应

Question

我正在从浏览器中的js调用我的Parse Cloud函数。 我只是在做测试。 我正在尝试对http://api.geonames.org进行GET调用。 如果我以http://api.geonames.org/citiesJSON?north=44.1&south=-9.9&east=-22.4&west=55.2&lang=de&username=demo在浏览器中执行它，则它确实可以正常工作。 它返回：

{"geonames":[{"fcodeName":"capital of a political entity","toponymName":"Mexico City","countrycode":"MX","fcl":"P","fclName":"city, village,...","name":"Mexiko-Stadt","wikipedia":"en.wikipedia.org/wiki/Mexico_City","lng":-99.12766456604,"fcode":"PPLC","geonameId":3530597,"lat":19.428472427036,"population":12294193},{"fcodeName":"capital of a political entity","toponymName":"Beijing","countrycode":"CN","fcl":"P","fclName":"city, village,...","name":"Peking","wikipedia":"en.wikipedia.org/wiki/Beijing","lng":116.397228240967,"fcode":"PPLC","geonameId":1816670,"lat":39.9074977414405,"population":11716620},{"fcodeName":"capital of a political entity","toponymName":"Manila","countrycode":"PH","fcl":"P","fclName":"city, village,...","name":"Manila","wikipedia":"en.wikipedia.org/wiki/Manila","lng":120.9822,"fcode":"PPLC","geonameId":1701668,"lat":14.6042,"population":10444527},{"fcodeName":"capital of a political entity","toponymName":"Dhaka","countrycode":"BD","fcl":"P","fclName":"city, village,...","name":"Dhaka","wikipedia":"en.wikipedia.org/wiki/Dhaka","lng":90.40743827819824,"fcode":"PPLC","geonameId":1185241,"lat":23.710395616597037,"population":10356500},{"fcodeName":"capital of a political entity","toponymName":"Seoul","countrycode":"KR","fcl":"P","fclName":"city, village,...","name":"Seoul","wikipedia":"en.wikipedia.org/wiki/Seoul","lng":126.9784,"fcode":"PPLC","geonameId":1835848,"lat":37.566,"population":10349312},{"fcodeName":"capital of a political entity","toponymName":"Jakarta","countrycode":"ID","fcl":"P","fclName":"city, village,...","name":"Jakarta","wikipedia":"en.wikipedia.org/wiki/Jakarta","lng":106.84513092041016,"fcode":"PPLC","geonameId":1642911,"lat":-6.214623197035775,"population":8540121},{"fcodeName":"capital of a political entity","toponymName":"Tokyo","countrycode":"JP","fcl":"P","fclName":"city, village,...","name":"Tokio","wikipedia":"de.wikipedia.org/wiki/Tokyo","lng":139.69171,"fcode":"PPLC","geonameId":1850147,"lat":35.6895,"population":8336599},{"fcodeName":"capital of a political entity","toponymName":"Taipei","countrycode":"TW","fcl":"P","fclName":"city, village,...","name":"Taipeh","wikipedia":"de.wikipedia.org/wiki/Taipei","lng":121.531846,"fcode":"PPLC","geonameId":1668341,"lat":25.047763,"population":7871900},{"fcodeName":"capital of a political entity","toponymName":"Bogotá","countrycode":"CO","fcl":"P","fclName":"city, village,...","name":"Bogotá","wikipedia":"en.wikipedia.org/wiki/Bogot%C3%A1","lng":-74.08175468444824,"fcode":"PPLC","geonameId":3688689,"lat":4.609705849789108,"population":7674366},{"fcodeName":"capital of a political entity","toponymName":"Hong Kong","countrycode":"HK","fcl":"P","fclName":"city, village,...","name":"Hong Kong","wikipedia":"en.wikipedia.org/wiki/Hong_Kong","lng":114.157691001892,"fcode":"PPLC","geonameId":1819729,"lat":22.2855225817732,"population":7012738}]}

而如果我在云代码中将其执行为：

Parse.Cloud.define("testRequest", function(request , response){
    Parse.Cloud.httpRequest({
        url: 'http://api.geonames.org/citiesJSON',
        params: {
            'north' : '44.1',
            'south' : '-9.9',
            'east' : '-22.4',
            'west' : '55.2',
            'lang' : 'de',
            'username' : 'demo'
        },
        success:function(httpResponse){
            console.log(httpResponse.text);
            response.success("success from response.success>>>>");
            console.log('httpResponse->'+ httpResponse.response +'  <<<');
            console.log('data>>'+httpResponse.data);
        },
        error:function(httpResponse){
            console.error('Request failed with response code ' + httpResponse.status);
            response.error(httpResponse.status);
        }, 
    });
});

在我的本地计算机上使用以下脚本：

<script type="text/javascript">
    Parse.initialize("KEY", "KEY");



        Parse.Cloud.run('testRequest', {}, {
          success: function(result) {
            alert(result.httpRequest+"<----RESULT!")
            // result is 'Hello world!'
          },
          error: function(error) {
            alert("Something went wrong"+error.message);
          }
        });
  </script>

它返回200状态，但没有数据。 我确保已部署代码，并且在Parse.com的“云代码”选项卡中看到了最新的代码，因此绝对不能在云上运行旧代码。

您知道如何正确地从Cloud Code进行成功的GET调用吗？ 非常感谢您提供有关此主题的任何帮助或帮助我纠正代码中的任何错误！

Answer 1

您应该通过以下方式从CloudCode返回数据：

response.success(httpResponse.text);

并像这样在JavaScript中使用数据

Parse.Cloud.run('testRequest', {}, {
    success: function(result) {
        alert(result);
    }
});

您现在将看到结果。