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<document>
    <properties>
        <title>Apache Synapse - Sample 440</title>
    </properties>
    <body>
        <section name="Sample 440: Respond Mediator - Echo Service with a Proxy Service">
            <div class="xmlConf">&lt;definitions xmlns=&quot;http://ws.apache.org/ns/synapse&quot;&gt;
        &lt;proxy name=&quot;EchoService&quot;&gt;
            &lt;target&gt;
                &lt;inSequence&gt;
                    &lt;respond/&gt;
                &lt;/inSequence&gt;
            &lt;/target&gt;
        &lt;/proxy&gt;
&lt;/definitions&gt;</div>
            <subsection name="Objective">
                <p>
                    Demonstrate how to use respond mediator to create a simple echo service
                </p>
            </subsection>
            <subsection name="Pre-requisites">
                <p>
                    <ul>
                        <li>
                            Start Synapse using the configuration numbered 440 (repository/conf/sample/synapse_sample_440.xml)
                            <div class="command">
                                Unix/Linux: sh synapse.sh -sample 440<br/>
                                Windows: synapse.bat -sample 440
                            </div>
                        </li>
                    </ul>
                </p>
            </subsection>
            <subsection name="Executing the Client">
                <p>
                    Invoke the EchoService proxy service with a payload.
                    Following is how we can use curl as the client.
                </p>
                <div class="command">curl -v -X POST -H "Content-type: application/xml" -d '&lt;test&gt;foo&lt;/test&gt;' 'http://localhost:8280/services/EchoService'</div>
            </subsection>
        </section>
        <p><a href="../samples.html">Back to Catalog</a></p>
    </body>
</document>