What Is SOAP?

This section describes what is SOAP (Simple Object Accessing Protocol) - A client-server communication protocol to access remote objects.

SOAP (Simple Object Accessing Protocol) - A client-server communication protocol to allow the client side to accessing programming objects on the server side, and execute methods against those objects, and receiving execution result. All these functionalities are archived by sending and receiving XML messages over various transportation protocols, like TCP, HTTP, FTP, etc.

There are two options for an application program, client side or server side, to use SOAP:

1. Follow the SOAP protocol, and do everything yourself. Here is the communication diagram:

            |  SOAP on TCP   |
Client Prog.|<-------------->|Server Prog.

Here is the steps involved to complet a single SOAP communication:

Step   Client Program           Server Program

1                               Prepare server socket
2                               Listen on server socket
3                               Wait
4      Prepare SOAP request     Wait  
5      Prepare client socket    Wait
6      Connect to server        Connect with client
7      Transmit SOAP request    Receive SOAP request
8      Wait                     Process SOAP request
9      Wait                     Prepare SOAP response
10     Receive SOAP response    Transmit SOAP response
11     Close client socket      Wait

2. Use SOAP client API (Application Program Interface) package to help your client program to:

3. Use SOAP server API (Application Program Interface) package to help your server program to:

Here is the communication diagram, if you are using SOAP API packages:

Client System                                 Server System

             API            |  TCP/HTTP/...  |            
Client Prog.<--->SOAP Client|<-------------->|TCP/HTTP/... Server
                                                | Attached
                                              SOAP Server
                                                | API
                                              Server Prog.

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

 SOAP HTTP Binding

 SOAP Perl Implementations

 SOAP PHP Implementations

 SOAP Java Implementations

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

What Is SOAP?

 What Is SOAP::Lite?

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

 SoapTcpClient.pl - SOAP Client Example with TCP Protocol

 SOAP::Lite Tracing Functions

 SOAP::Transport::HTTP - SOAP Server with HTTP Protocol

 Perl Socket Test Program for HTTP and SOAP

 Perl SOAP::Lite for GetSpeech SOAP 1.1 Web Service

 Perl SOAP::Lite 0.710 for SOAP 1.2 Web Services

 Perl SOAP::Lite 0.710 for WSDL

 PHP SOAP Extension Client Programs

 PHP SOAP Extension Server Programs

 Java Socket and HttpURLConnection for SOAP

 SAAJ - SOAP with Attachments API for Java

 SoapUI - SOAP Web Service Testing Tool

 WS-Security - SOAP Message Security Extension

 WS-Security X.509 Certificate Token

 Web Services and SOAP Terminology


 PDF Printing Version