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The prefix used to get the URI element of a request URL.

Example of $url usage:

Create a REST API with the following configuration using instructions given in page Creating APIs.

Code Block

language	xml

<api xmlns="http://ws.apache.org/ns/synapse" name="Editing" context="/editing">
   <resource methods="GET" uri-template="/edit?a={symbol}&b={value}">
      <inSequence>
         <log level="full">
            <property name="SYMBOL" expression="$url:a"></property>
            <property name="VALUE" expression="$url:b"></property>
         </log>
         <respond></respond>
      </inSequence>
   </resource>
</api>

Send a request to the REST API you created using a browser as follows:

Code Block

language	xml

 http://10.100.5.73:8280/editing/edit?a=wso2&b=2.4

You would You will see the following in the ESB log:

Code Block

language	xml

LogMediator To: /editing/edit?a=wso2&b=2.4, MessageID: urn:uuid:36cb5ad7-f150-490d-897a-ee7b86a9307d, Direction: request, SYMBOL = wso2, VALUE = 2.4, Envelope: <?xml version="1.0" encoding="utf-8"?><soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope"><soapenv:Body></soapenv:Body></soapenv:Envelope>

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