SOAP::Transport::TCP::Server - SOAP Server with TCP Protocol

SOAP Web Service Tutorials - Herong's Tutorial Examples - Version 5.02, by Dr. Herong Yang

SOAP Web Service Tutorials - Herong's Tutorial Examples

∟Perl SOAP::Lite - SOAP Server-Client Communication Module

∟SOAP::Transport::TCP::Server - SOAP Server with TCP Protocol

This section provides a tutorial example on how to use the SOAP::Transport::TCP module to create a SOAP server with the TCP protocol.

Let's look at one of the SOAP server API module first. SOAP::Transport::TCP has sub module called SOAP::Transport::TCP::Server. It offers two functionalities: 1. Taking SOAP requests as a SOAP server; 2. Interacting with application modules to handle the requests as a SOAP server side API.

Main functions of SOAP::Transport::TCP::Server are:

new(LocalAddr=>'hostname', LocalPort=>'port', Listen=>'queueSize') - Constructs and returns SOAP server object that listens on the specified host name at the specified port with the specified queue size.

dispatch_to('Module::method') - Defines the module name and the method name that can be called by the incoming SOAP request for this server, and returns this server object.

handle() - Puts this server in waiting mode for incoming SOAP request. Whenever a SOAP request comes, it will be automatically passed to the module name and the method name defined by the dispatch_to() function based on the SOAP action name in the request.

Here is a sample program to show you how to create a SOAP server with TCP as the transportation protocol:

#- SoapTcpServer.pl
#- Copyright (c) 2002 by Dr. Herong Yang, http://www.herongyang.com/
   use SOAP::Transport::TCP;
   my $daemon = SOAP::Transport::TCP::Server
      ->new(LocalAddr => 'localhost', LocalPort => 8001, Listen => 5);
   $daemon->dispatch_to('Hello::hello');
   print "SOAP TCP server listening...\n";
   print "   Host: ", $daemon->sockhost, "\n";
   print "   Port: ", $daemon->sockport, "\n";
   $daemon->handle();

This program will create a SOAP server on localhost at 8001, and dispatch SOAP request to Hello::hello, if the SOAP action name matches it. Here is my Hello module code:

#- Hello.pm
#- Copyright (c) 2002 by Dr. Herong Yang, http://www.herongyang.com/
   package Hello;
   sub hello {
     shift;
     return "Hello " . shift;
   }
1;

If you run SoapTcpServer.pl, you will get this:

SOAP TCP server listening...
   Host: 127.0.0.1
   Port: 8001

The SOAP server is ready. Now you need a SOAP client program to talk the SOAP server. See the next section to know how to write a SOAP client program.

Last update: 2007.

Table of Contents

About This Book

Introduction to Web Service

Introduction to SOAP (Simple Object Access Protocol)

SOAP Message Structure

SOAP Message Transmission and Processing

SOAP Data Model

SOAP Encoding

SOAP RPC Presentation

SOAP Properties Model

SOAP Message Exchange Patterns