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Mock Web services with Apache Synapse to develop and test Web services

Do more with Apache Synapse Enterprise Service Bus

Upul Godage (upulgodage@yahoo.com), Senior Software Engineer, WSO2
Upul Godage photo
Upul Godage works as a senior software engineer at WSO2. He's experienced in enterprise Java, SOA, open source technologies, and Linux. He's involved in Apache Web Services Project, Apache Axis2, and Apache Synapse ESB.

Summary:  Apache Synapse is a simple, lightweight, high-performance enterprise service bus (ESB) released under the Apache License, Version 2.0 from the Apache Software Foundation. Using Apache Synapse, you can filter, transform, route, manipulate, and monitor SOAP, binary, XML, and plain text messages that pass through your large-scale enterprise systems by HTTP, HTTPS, Java™ Message Service (JMS), Simple Mail Transfer Protocol (SMTP), Post Office Protocol Version 3 (POP3), FTP, file systems, and many other transport mediums. But for an individual developer, what's the use of an ESB product in your day-to-day life? The simplicity of the configuration, out-of-the-box feature set, extensible architecture, and the minimal footprint makes it a versatile and powerful tool that you can use for a variety of tasks. This article examines how you can use Apache Synapse to create mock Web services.

Date:  01 May 2008
Level:  Intermediate
PDF:  A4 and Letter (104 KB | 20 pages)Get Adobe® Reader®

Activity:  22334 views
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Before you start

About this tutorial

This tutorial discusses how to create mock Web services using Apache Synapse ESB. The target Web service clients and services can be in any language, such as Microsoft® .NET, Java, or PHP. You work with several samples, starting from the most basic configuration and gradually building more complex solutions to create mock Web services.

Prerequisites

This tutorial is written mainly for Web services developers, so you should have a general familiarity with Web services concepts. Prior knowledge of Apache Synapse is helpful. You should also have at least an elementary knowledge of XSL Transformation (XSLT) and JavaScript code. If this is an unfamiliar area to you, there are many resources on the Web that can provide you with the basic information.

System requirements

Apache Synapse requires JDK 1.5 and can run in Linux®, Microsoft Windows®, and Solaris environments. The memory and disk space requirements are minimal, as you can easily run it on low-end systems without any issues.

In this tutorial, commands and directory names are given in a Linux-compatible format. If your operating system is different, please change the commands and the directory names accordingly. For example, in Windows you have to use the synapse.bat script instead of synapse.sh to start the Synapse instance.

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