Question

我想下载一个JSON并解析它。我尝试了以下方法：

    var request = require('request');
    var url = "http://iiif.nli.org.il/collections/danhadani.json"
    var result = request(url , function(error, response, body) {
          console.log("Fin");
          JSON.parse(body);
     });

undefined
> Fin
Fin
SyntaxError: Unexpected token 
    at Object.parse (native)
    at Request._callback (repl:1:81)
    at Request.self.callback (/home/artium/Projects/nlihack-team-m7/node_modules/request/request.js:186:22)
    at emitTwo (events.js:87:13)
    at Request.emit (events.js:172:7)
    at Request.<anonymous> (/home/artium/Projects/nlihack-team-m7/node_modules/request/request.js:1163:10)
    at emitOne (events.js:77:13)
    at Request.emit (events.js:169:7)
    at IncomingMessage.<anonymous> (/home/artium/Projects/nlihack-team-m7/node_modules/request/request.js:1085:12)
    at IncomingMessage.g (events.js:260:16)

我能够记录正文中检索到的JSON字符串，对我来说看起来不错，所以我猜我的解析错误了。

编辑：

身体的第一个字符看起来像这样：

> body.substring(1,250)
'{"@context":"http://iiif.io/api/presentation/2/context.json",\n"@id": "http://iiif.nli.org.il/collections/danhadani.json",\n"@type":"sc:Collection",\n"label":"Dan Hadani Collection", \n"attribution":[{"@value":"The National Library of Israel","@language'

Answer 1

试试这个：

var request = require('request');
var url = "http://iiif.nli.org.il/collections/danhadani.json";

var options = {
  uri: url,
  method: 'GET',
  json : true,
  encoding: 'utf8'
};

var r = request(options , function(error, response, body) { 
    console.log("Fin");
    // now you have an Array(43515) of objects on body.members without the need of parsing.
    console.log(`The first object in the json file is: ${body.members[0]}`);
});

您将获取数据作为对象数组（因为该json文件的格式）

我尝试了代码，但它确实有效。

בהצלחה！

发出HTTP请求并将结果解析为JSON

1 个答案: