如何在 Ruby 中从内存中 HTTP 发布流数据



我想上传我在 Ruby 中运行时生成的数据,就像从块中提供上传一样。

我找到的所有示例仅显示如何在请求之前流式传输必须在磁盘上的文件,但我不想缓冲该文件。

除了滚动自己的套接字连接之外,最好的解决方案是什么?

这是一个伪代码示例:

post_stream('127.0.0.1', '/stream/') do |body|
  generate_xml do |segment|
    body << segment
  end
end

有效的代码。

    require 'thread'
    require 'net/http'
    require 'base64'
    require 'openssl'
    class Producer
      def initialize
       @mutex = Mutex.new
       @body = ''
       @eof = false
      end
      def eof!()
        @eof = true
      end
      def eof?()
        @eof
      end
      def read(size)
        @mutex.synchronize {
          @body.slice!(0,size)
        }
      end
      def produce(str)
        if @body.empty? && @eof
          nil
        else
          @mutex.synchronize { @body.slice!(0,size) }
        end
      end
    end
    data = "--60079rnContent-Disposition: form-data; name="file"; filename="test.file"rnContent-Type: application/x-rubyrnrnthis is just a testrn--60079--rn"
    req = Net::HTTP::Post.new('/')
    producer = Producer.new
    req.body_stream = producer
    req.content_length = data.length
    req.content_type = "multipart/form-data; boundary=60079"
    t1 = Thread.new do
      producer.produce(data)
      producer.eof!
    end
    res = Net::HTTP.new('127.0.0.1', 9000).start {|http| http.request(req) }
    puts res

there's a Net::HTTPGenericRequest#body_stream=( obj.should respond_to?(:read) )

你或多或少像这样使用它:


class Producer
  def initialize
   @mutex = Mutex.new
   @body = ''
  end
  def read(size)
    @mutex.synchronize {
      @body.slice!(0,size)
    }
  end
  def produce(str)
    @mutex.synchronize {
      @body << str
    }
  end
end
# Create a producer thread
req = Net::HTTP::Post.new(url.path)
req.body_stream = producer
res = Net::HTTP.new(url.host, url.port).start {|http| http.request(req) }

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