16

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 成功发出经过身份验证的 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,我一直无法使用 HTTParty 发出成功的 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"

我已经尝试(不成功)使用 HTTParty 构建我的代码,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'

我尝试了各种其他组合 API 调用的结构,但不知道如何让它工作。这是另一个这样的例子,我不使用数组作为正文的一部分并转换内容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' }
           })

它返回以下内容(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 curl 不是很熟悉,所以我不确定我是否错误地将内容转换为 HTTParty。

任何帮助,将不胜感激。谢谢。

4

1 回答 1

35

只是一个猜测,但看起来你在预期 JSON 时在正文中传递了一个哈希值。

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,但通过将其放在哈希而不是数组之后并完全删除数组而将其放错了位置。该示例使用多条记录,因此需要数组。

看了这个帖子后,看起来 Gittip 对接受标头很挑剔。

: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'}
  })
于 2013-10-19T02:13:16.857 回答