如何使用HTTParty实现此POST请求?

时间:2013-10-19 01:29:44

标签: ruby curl httparty

我很难使用Ruby的HTTParty库向API端点发出POST请求。我正在与之交互的API是Gittip API,它们的端点需要身份验证。我已经能够使用HTTParty成功地进行经过身份验证的GET请求。

您可以在示例代码中看到:

user = "gratitude_test"
api_key = "5962b93a-5bf7-4cb6-ae6f-aa4114c5e4f2"
# I have included real credentials since the above is merely a test account.

HTTParty.get("https://www.gittip.com/#{user}/tips.json", 
             { :basic_auth => { :username => api_key } })

该请求有效,并按预期返回以下内容:

[
  {
    "amount" => "1.00",
    "platform" => "gittip",
    "username" => "whit537"
  },
  {
    "amount" => "0.25",
    "platform" => "gittip",
    "username" => "JohnKellyFerguson"
  }
]

但是,我无法使用HTTParty成功发出POST请求。 Gittip API描述了使用curl发出POST请求,如下所示:

curl https://www.gittip.com/foobar/tips.json \
  -u API_KEY: \
  -X POST \
  -d'[{"username":"bazbuz", "platform":"gittip", "amount": "1.00"}]' \
  -H"Content-Type: application/json"

我尝试使用HTTParty构建我的代码(不成功),如下所示:

user = "gratitude_test"
api_key = "5962b93a-5bf7-4cb6-ae6f-aa4114c5e4f2"

HTTParty.post("https://www.gittip.com/#{user}/tips.json",
              { 
                :body => [ { "amount" => "0.25", "platform" => "gittip", "username" => "whit537" } ],
                :basic_auth => { :username => api_key },
                :headers => { 'Content-Type' => 'application/json' }
               })

第一个参数是url,第二个参数是选项哈希。当我运行上面的代码时,我收到以下错误:

NoMethodError: undefined method `bytesize' for [{"amount"=>"0.25", "platform"=>"gittip", "username"=>"whit537"}]:Array
  from /Users/John/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/net/http/generic_request.rb:179:in `send_request_with_body'

我已尝试过构建API调用的各种其他组合,但无法弄清楚如何使其工作。这是另一个这样的例子,我没有将数组作为正文的一部分使用并转换内容to_json

user = "gratitude_test"
api_key = "5962b93a-5bf7-4cb6-ae6f-aa4114c5e4f2"

HTTParty.post("https://www.gittip.com/#{user}/tips.json",
          {
            :body => { "amount" => "0.25", "platform" => "gittip", "username" => "whit537" }.to_json,
            :basic_auth => { :username => api_key },
            :headers => { 'Content-Type' => 'application/json' }
           })

返回以下内容(500错误):

<html>
  <head>
    <title>500 Internal Server Error</title>
  </head>
  <body>\n        Internal server error, program!\n        <pre></pre>  
  </body>
</html>

我对卷曲并不熟悉,所以我不确定我是否错误地将内容翻译成了HTTParty。

任何帮助将不胜感激。感谢。

1 个答案:

答案 0 :(得分:30)

只是一个猜测,但看起来你在JSON出现时正在传递哈希值。

尝试将:body声明替换为:

:body => [{ "amount" => "0.25", 
             "platform" => "gittip", 
             "username" => "whit537" }].to_json

编辑: 我建议使用to_json序列化程序,但是将它放在哈希而不是数组之后放错了它并完全删除了数组。该示例使用多个记录,因此该数组是必需的。

在查看this thread后,看起来Gittip对接受标题很挑剔。

:headers => { 'Content-Type' => 'application/json', 'Accept' => 'application/json'}

所以,完整的建议是:

HTTParty.post("https://www.gittip.com/#{user}/tips.json",
  { 
    :body => [ { "amount" => "0.25", "platform" => "gittip", "username" => "whit537" } ].to_json,
    :basic_auth => { :username => api_key },
    :headers => { 'Content-Type' => 'application/json', 'Accept' => 'application/json'}
  })