爲了學習的目的，我試圖用Ruby和Faraday重現Instagram的內部API。然而，響應的身體發出POST當我以某種方式編碼的JSON代替：來自API的奇怪迴應

什麼迴應的身體應該像：

{ 
    "status": "ok", 
    "media": { 
    "page_info": { 
     "start_cursor": "1447303180937779444_4460593680", 
     "has_next_page": true, 
     "end_cursor": "1447303180937779444", 
     "has_previous_page": true 
    }, 
...

我能得到什麼：

#=> \x1F\x8B\b\x00#\x15\x9EX\x02\xFF...

問題：

任何想法（i）爲什麼我得到這樣的響應身體和（ii）我如何將它轉換爲JSON？

流量：

當您在瀏覽器的Instagram打https://www.instagram.com/explore/locations/127963847/madrid-spain/使得兩個請求（其中包括）：

我使用Postman來攔截請求並只複製第二個（/ query /）請求的標頭和參數。這是我的實現（獲取狀態'200'）：

class IcTest 
    require 'open-uri' 
    require "net/http" 
    require "uri" 

    def self.faraday 
    conn = Faraday.new(:url => 'https://www.instagram.com') do |faraday| 
     faraday.request :url_encoded    # form-encode POST params 
     faraday.response :logger     # log requests to STDOUT 
     faraday.adapter Faraday.default_adapter # make requests with Net::HTTP 
    end 

    res = conn.post do |req| 
     req.url '/query/' 
     req.headers['Origin'] = 'https://www.instagram.com' 
     req.headers['X-Instagram-AJAX'] = '1' 
     req.headers['User-Agent'] = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36' 
     req.headers['Content-Type'] = 'application/x-www-form-urlencoded' 
     # req.headers['Accept'] = '*/*' 
     req.headers['X-Requested-With'] = 'XMLHttpRequest' 
     req.headers['X-CSRFToken'] = 'SrxvROytxQHAesy1XcgcM2PWrEHHuQnD' 
     req.headers['Referer'] = 'https://www.instagram.com/explore/locations/127963847/madrid-spain/' 
     req.headers['Accept-Encoding'] = 'gzip, deflate, br' 
     req.headers['Accept-Language'] = 'es,en;q=0.8,gl;q=0.6,pt;q=0.4,pl;q=0.2' 
     req.headers['Cookie'] = 'mid=SJt50gAEAAE6KZ50GByVoStJKLUH; sessionid=IGSC514a2e9015f548b09176228f83ad5fe716f32e7143f6fe710c19a71c08b9828b%3Apc2KPxgwvokLyZhfZHcO1Qzfb2mpykG8%3A%7B%22_token%22%3A%2233263701%3Ai7HSIbxIMLj70AoUrCRjd0o1g7egHg79%3Acde5fe679ed6d86011d70b7291901998b8aae7d0aaaccdf02a2c5abeeaeb5908%22%2C%22asns%22%3A%7B%2283.34.38.249%22%3A3352%2C%22time%22%3A1486584547%7D%2C%22last_refreshed%22%3A1436584547.2838287%2C%22_platform%22%3A4%2C%22_token_ver%22%3A2%2C%22_auth_user_backend%22%3A%22accounts.backends.CaseInsensitiveModelBackend%22%2C%22_auth_user_id%22%3A33233701%2C%22_auth_user_hash%22%3A%22%22%7D; ds_user_id=31263701; csrftoken=sxvROytxQHAesy1XcgcM2PWrEHHuQnD; s_network=""; ig_vw=1440; ig_pr=2;' 

     req.body = { :q => "ig_location(127963847) { media.after('', 60) { count, nodes { caption, code, comments {  count }, comments_disabled, date, dimensions {  height,  width }, display_src, id, is_video, likes {  count }, owner {  id }, thumbnail_src, video_views }, page_info} }", 
        :ref => "locations::show", 
        :query_id => "" } 
    end 
    end

謝謝。

來源

2017-02-10 borjagvo

https://stackoverflow.com/questions/1361892/how-to-decompress-gzip-string-in-ruby –

@JoshLee非常感謝！ – borjagvo

喬什評論做到了！ :-)

身體的內容是gzip。

解決方案here。

來源

2017-02-10 19:57:38 borjagvo

來自API的奇怪迴應

問題：

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