在 Ruby 中发送 HTTP/2 POST 请求

Posted 2023-03-10

【中文标题】在 Ruby 中发送 HTTP/2 POST 请求

【英文标题】：Sending HTTP/2 POST request in Ruby

【发布时间】：2016-03-31 05:15:45

【问题描述】：

我正在尝试使用基于HTTP/2 的新Apple Push Notification API。

我找到了 http-2 Ruby gem，但文档并不清楚如何作为客户端发出请求。

如何在 Ruby/Rails 中发出 HTTP/2 请求？

【问题讨论】：

你是我听说第一个尝试使用 HTTP2 的人，祝你好运，你会需要它 :D

【参考方案1】：

这是使用async-http 的方法：

#!/usr/bin/env ruby

require 'async'
require 'async/logger'
require 'async/http/client'
require 'async/http/url_endpoint'

Async do
    endpoint = Async::HTTP::URLEndpoint.parse("https://www.google.com")
    
    client = Async::HTTP::Client.new(endpoint)
    
    headers = 
        'accept' => 'text/html',
    
    
    request = Async::HTTP::Request.new("www.google.com", "GET", "/search?q=cats", headers)
    
    response = client.call(request)
    body = response.read
end

这将根据需要协商 HTTP/1、HTTP/2 和 SSL。

【参考方案2】：

免责声明：我是下面列出的两颗宝石的作者。

如果你想发起 HTTP/2 调用，你可以考虑NetHttp2，一个 Ruby 的 HTTP/2 客户端。

同步调用的使用示例：

require 'net-http2'

# create a client
client = NetHttp2::Client.new("http://106.186.112.116")

# send request
response = client.call(:get, '/')

# read the response
response.ok?      # => true
response.status   # => '200'
response.headers  # => ":status"=>"200"
response.body     # => "A body"

# close the connection
client.close    

除了自己编写 HTTP/2 调用之外，如果您想要一个 Apple Push Notification gem，它使用新的 HTTP/2 细节并且可以嵌入到 Rails 环境中，那么您还可以考虑Apnotic。

用法很简单：

require 'apnotic'

# create a persistent connection
connection = Apnotic::Connection.new(cert_path: "apns_certificate.pem", cert_pass: "pass")

# create a notification for a specific device token 
token = "6c267f26b173cd9595ae2f6702b1ab560371a60e7c8a9e27419bd0fa4a42e58f"

notification       = Apnotic::Notification.new(token)
notification.alert = "Notification from Apnotic!"

# send (this is a blocking call)
response = connection.push(notification)

# read the response
response.ok?      # => true
response.status   # => '200'
response.headers  # => ":status"=>"200", "apns-id"=>"6f2cd350-bfad-4af0-a8bc-0d501e9e1799"
response.body     # => ""

# close the connection
connection.close

【参考方案3】：

我一直在为此开发客户端实现：https://github.com/alloy/lowdown。

到目前为止，我一直在对其进行广泛的测试，但要到下周才能将其部署到生产环境中。我希望它能够获得更多测试、反馈等。

【参考方案4】：

this file 中有一个创建 HTTP/2 客户端的示例。它可以适应这样的 APN 请求：

require 'socket'
require 'http/2'

payload = '"foo":"bar"'
device_token = '00fc13adff785122b4ad28809a3420982341241421348097878e577c991de8f0' # example
sock = TCPSocket.new('api.development.push.apple.com', 443)

conn = HTTP2::Client.new
conn.on(:frame) do |bytes|
  puts "Sending bytes: #bytes.unpack("H*").first"
  sock.print bytes
  sock.flush
end

stream = conn.new_stream

stream.on(:close) do
  sock.close
end

head = 
  ':scheme' => 'https',
  ':method' => 'POST',
  ':path' => "/3/device/#device_token",
  'apns-id' => '123e4567-e89b-12d3-a456-42665544000', # or you could omit this header
  'content-length' => payload.bytesize.to_s # should be less than or equal to 4096 bytes


puts 'Sending HTTP 2.0 request'
stream.headers(head, end_stream: false)
stream.data(payload)

while !sock.closed? && !sock.eof?
  data = sock.read_nonblock(1024)
  puts "Received bytes: #data.unpack("H*").first"

  begin
    conn << data
  rescue => e
    puts "Exception: #e, #e.message - closing socket."
    sock.close
  end
end