[英]Parsing JSON response from a http request?
我正在使用Nodejs應用程序中的“ requestify”模塊向站點發出http請求,並以JSON格式返回html。 但是,我正在嘗試使用JSON.parse()函數,但它似乎不起作用?
我已經在控制台上記錄了響應,以檢查請求是否正常運行,但是解析沒有返回任何內容?
有任何想法嗎? 碼:
parse.js
var requestify = require('requestify');
var fs = require('fs')
var obj;
var url = 'http://www.bbc.co.uk'
requestify.request(url, {
method: 'GET',
cookies: {
'examplename':'examplevalue'
},
dataType: 'json'
})
.then(function(response){
var pattern = /href=.{1,50}/g
obj = JSON.parse('{"filter": "href.+/-", "flags": "g"}')
obj.filter = new RegExp(obj.filter, obj.flags)
var r = response.match(obj.filter)
console.log(r)
})
僅僅因為請求指定您希望返回json並不意味着bbc將以json進行響應。 似乎bbc正在使用html進行響應,這使JSON.parse
失敗。
$ curl -H "Content-Type: application/json" http://www.bbc.co.uk -v > out.log
* About to connect() to www.bbc.co.uk port 80 (#0)
* Trying 212.58.244.71... connected
* Connected to www.bbc.co.uk (212.58.244.71) port 80 (#0)
> GET / HTTP/1.1
> User-Agent: curl/7.19.7 (universal-apple-darwin10.0) libcurl/7.19.7 OpenSSL/0.9.8y zlib/1.2.3
> Host: www.bbc.co.uk
> Accept: */*
> Content-Type: application/json
>
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0< HTTP/1.1 200 OK
< Server: nginx
< Content-Type: text/html; charset=utf-8
< ETag: W/"2266d-K1zKA7z5pAya6M49nLj/pg"
< X-Frame-Options: SAMEORIGIN
< x-origin-route: xrt-lb
< Content-Length: 140909
< Date: Sun, 10 Jan 2016 13:06:27 GMT
< Connection: keep-alive
< Set-Cookie: BBC-UID=c566b912a5f755d32356f02df1d767d43a09776757d42496ea40c7c28dc4415c0curl/7.19.7%20(universal-apple-darwin10.0)%20libcurl/7.19.7%20OpenSSL/0.9.8y%20zlib/1.2.3; expires=Thu, 09-Jan-20 13:06:27 GMT; path=/; domain=.bbc.co.uk
< X-Cache-Action: HIT
< X-Cache-Hits: 123
< X-Cache-Age: 9
< Cache-Control: private, max-age=0, must-revalidate
< Vary: Accept-Encoding, X-CDN
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