使用Ruby提取推文将返回“ open_http”：400错误请求（OpenURI :: HTTPError）

Question

我是Ruby的新手。 我已经开始阅读Bastards Book Ruby的第一章，即推文获取，但是本教程使用Twitter API v1。 我得到的回复告诉我使用v1.1。 因此，我遵循了教程并编写了一个程序：

require 'oauth'

def prepare_access_token(oauth_token, oauth_token_secret)
    consumer = OAuth::Consumer.new("apiKey", "APISecret", { :site => "https://api.twitter.com", :scheme => :header })

    token_hash = { :oauth_token => oauth_token, :oauth_token_secret => oauth_token_secret }
    access_token = OAuth::AccessToken.from_hash(consumer, token_hash )

    return access_token
end

access_token = prepare_access_token("AccessToken", "AccessTokenSecret")

response = access_token.request(:get, "https://api.twitter.com/1.1/statuses/home_timeline.json")
puts response 

输出： #<Net::HTTPOK:0x007fb7eb0885b8>

如果我运行程序直到这里。 运行正常。 但是，如果我添加以下内容以获取推文并写入文件。 我收到错误

twitter_user = "iAbhimanyuAryan"
remote_base_url = "https://api.twitter.com/1.1/statuses/user_timeline.json?count=100&screen_name="

remote_full_url = remote_base_url + twitter_user

tweets = open(remote_full_url).read

my_local_filename = twitter_user + "-tweets.json"

my_local_file = open(my_local_filename, "w")
      my_local_file.write(tweets)

my_local_file.close    

错误：

❯ ruby twitter.rb
#<Net::HTTPOK:0x007fbbfc9d75c8>
/Users/abhimanyuaryan/.rbenv/versions/2.2.3/lib/ruby/2.2.0/open-uri.rb:358:in `open_http': 400 Bad Request (OpenURI::HTTPError)
    from /Users/abhimanyuaryan/.rbenv/versions/2.2.3/lib/ruby/2.2.0/open-uri.rb:736:in `buffer_open'
    from /Users/abhimanyuaryan/.rbenv/versions/2.2.3/lib/ruby/2.2.0/open-uri.rb:211:in `block in open_loop'
    from /Users/abhimanyuaryan/.rbenv/versions/2.2.3/lib/ruby/2.2.0/open-uri.rb:209:in `catch'
    from /Users/abhimanyuaryan/.rbenv/versions/2.2.3/lib/ruby/2.2.0/open-uri.rb:209:in `open_loop'
    from /Users/abhimanyuaryan/.rbenv/versions/2.2.3/lib/ruby/2.2.0/open-uri.rb:150:in `open_uri'
    from /Users/abhimanyuaryan/.rbenv/versions/2.2.3/lib/ruby/2.2.0/open-uri.rb:716:in `open'
    from /Users/abhimanyuaryan/.rbenv/versions/2.2.3/lib/ruby/2.2.0/open-uri.rb:34:in `open'
    from twitter.rb:27:in `<main>'

Answer 1

查看Twitter API的手册页 ，此请求需要身份验证。

您将需要使用AccessToken对象发出请求。 像这样：

# response is a [Net::HTTPResponse][3]
response = access_token.get(remote_full_url)

# Get the entire body of the response
tweets = response.body

注意，这是一种非常基本的方法。 如果要将此类代码投入生产，则应添加适当的检查和错误处理。