cURL - 结构化请求以验证服务器发送的事件 [英] cURL - Structuring request to validate server sent events

问题描述

我是新到cURL和服务器发送的事件。我知道如何构建一个简单的GET，POST请求使用cURL和获得响应。另外，理论上我知道服务器发送的事件是通过创建事件源的侦听器来处理，但我不知道如何继续使用cURL验证任何这样的API。任何指导是赞赏。

解决方案

SSE是一种基于文本的协议，curl是一种很好的方法来排除您的连接发送的问题。命令很简单：

  curl http://127.0.0.1/path/to/clock.php 
  

并输出：

 数据：2015-07-07 06:19:27 
 
数据：2015-07-07 06:19:28 
 
数据：2015-07- 07 06:19:29 
 
资料：2015-07-07 06:19:30 
 
资料：2015-07-07 06:19:31 
 
 data：2015-07-07 06:19:32 
  

data：前缀的SSE协议，并且还清楚地显示双LF。它运行永远，直到你按ctrl-c。

关于唯一要指出的是，你必须使用一个Web服务器;您不能通过文件：//协议运行SSE。

对于更多硬核故障排除，请添加 - verbose

SSE支持cookies，您可以这样提供：（您必须首先准备好cookies.txt文件）：

  curl --cookie cookies.txt http://127.0.0.1/path/到/ clock.php 
  
 
 
 
 
 
 
为了完整起见， clock.php脚本：
 <？php 
 set_time_limit 
 header（Content-type：text / event-stream）; 
 
 while（1）{
 echodata：。日期（Y-m-d H：i：s）。 \\\
\\\
; 
 @ob_flush（）; flush（）; 
 sleep（1）; 
} 
  
 
I am new to cURL and server sent events. I know how to build a simple GET, POST requests using cURL and getting response. Also, Theoretically I am aware that server sent events are handled by creating a listener to event source but I am not sure how to proceed with validating any such API with cURL. Any guidance is appreciated. 
解决方案
SSE is a text-based protocol, and curl is a great way to troubleshoot exactly what your connection is sending. The command is this simple:
curl http://127.0.0.1/path/to/clock.php
And it outputs this:
data:2015-07-07 06:19:27

data:2015-07-07 06:19:28

data:2015-07-07 06:19:29

data:2015-07-07 06:19:30

data:2015-07-07 06:19:31

data:2015-07-07 06:19:32
Notice how it shows the "data:" prefix of the SSE protocol, and also clearly shows the double LFs. It runs forever, until you press ctrl-c.

About the only thing to point out is that you must use a web server; you cannot run SSE over the file:// protocol.

For more hard-core troubleshooting, add --verbose, which will show the headers being sent, and the headers being received.

SSE does support cookies, which you could give like this: (you would first have to prepare the "cookies.txt" file):
curl --cookie cookies.txt http://127.0.0.1/path/to/clock.php




For completeness, here is the clock.php script:
<?php 
set_time_limit(0);
header("Content-type: text/event-stream");

while(1){
    echo "data:" . date("Y-m-d H:i:s") . "\n\n";
    @ob_flush();flush();
    sleep(1);
    }


                        
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