From: Robby Russell <robby.lists@...>
Date: 2005-10-02T09:39:10+09:00
Subject: Re: Sending YAML over TCP

On Sun, 2005-10-02 at 08:23 +0900, lists wrote:
> Hi,
>      I'm trying to send simple data structures (hashes) to a daemon  
> process one one machine from a client process via TCP.  I thought the  
> best way to do this would be with XML or YAML.  Here's my simple server:
> 
> ---
> require 'socket'
> 
> server = TCPServer.new('127.0.0.1', 8080)
> 
> while (session = server.accept)
>    session.puts session.gets
>    session.close
> end
> ---
> 
> Here's my simple client:
> 
> ---
> require 'socket'
> require 'yaml'
> require 'base64'
> 
> hash = { 'one'=>'1', 'two'=>'2'} # Send this to the server and get it  
> back
> 
> client = TCPSocket.new('127.0.0.1', 8080)
> client.puts Base64.encode64(h.to_yaml)
> hash = YAML.load( Base64.decode64(client.gets) )
> client.close
> p hash
> ---
> 
> Obviously I don't know what I'm doing :-)  The above client/server  
> works for my simple purposes, but I wanted to know if there's a  
> better way to pass hashes from the client to the server and back.   
> I'd prefer to stick with YAML (rather than XML) if possible.
> 
> Thanks,
> Ryan
> 

Will all the clients be based in Ruby? If so, you might look at DRb.

http://segment7.net/projects/ruby/drb/introduction.html

-Robby


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