Ruby HTTP 获取参数

如何通过 ruby​​ 发送带参数的 HTTP GET 请求？

我尝试了很多例子，但都失败了。

我知道这篇文章已经很旧了，但是为了那些由 google 带到这里的人，有一种更简单的方法可以以 URL 安全的方式对参数进行编码。我不知道为什么我没有在其他地方看到这个方法，因为该方法记录在 Net::HTTP 页面上。我也看到 Arsen7 描述的方法作为其他几个问题的公认答案。

中提到的网络::HTTP http://www.ruby-doc.org/stdlib-1.9.3/libdoc/net/http/rdoc/Net/HTTP.html文档是URI.encode_www_form(params):

# Lets say we have a path and params that look like this:
path = "/search"
params = {q: => "answer"}

# Example 1: Replacing the #path_with_params method from Arsen7
def path_with_params(path, params)
   encoded_params = URI.encode_www_form(params)
   [path, encoded_params].join("?")
end

# Example 2: A shortcut for the entire example by Arsen7
uri = URI.parse("http://localhost.com" + path)
uri.query = URI.encode_www_form(params)
response = Net::HTTP.get_response(uri)

您选择哪个示例很大程度上取决于您的用例。在我当前的项目中，我使用的方法类似于 Arsen7 推荐的方法以及更简单的方法#path_with_params方法并且没有块格式。

# Simplified example implementation without response
# decoding or error handling.

require "net/http"
require "uri"

class Connection
  VERB_MAP = {
    :get    => Net::HTTP::Get,
    :post   => Net::HTTP::Post,
    :put    => Net::HTTP::Put,
    :delete => Net::HTTP::Delete
  }

  API_ENDPOINT = "http://dev.random.com"

  attr_reader :http

  def initialize(endpoint = API_ENDPOINT)
    uri = URI.parse(endpoint)
    @http = Net::HTTP.new(uri.host, uri.port)
  end

  def request(method, path, params)
    case method
    when :get
      full_path = path_with_params(path, params)
      request = VERB_MAP[method].new(full_path)
    else
      request = VERB_MAP[method].new(path)
      request.set_form_data(params)
    end

    http.request(request)
  end

  private

  def path_with_params(path, params)
    encoded_params = URI.encode_www_form(params)
    [path, encoded_params].join("?")
  end

end

con = Connection.new
con.request(:post, "/account", {:email => "[email protected] /cdn-cgi/l/email-protection"})
=> #<Net::HTTPCreated 201 Created readbody=true>