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The ESB provides access to the exact values of the template variables through message context properties. For example, if you have a resource configured with the URI template “/dictionary/{char}/{word}”, and a request “/dictionary/c/cat” is sent to the ESB, it will be dispatched to this resource, and we will be able to retrieve the exact values of the two variables using the "get-property" XPath extension of WSO2 ESB. For example:
<log level="custom">
<property <property name="Character" expression="get-property('uri.var.char')"/>
<property <property name="Word" expression="get-property('uri.var.word')"/>
</log>
This log mediator configuration would generate the following output for the request “/dictionary/c/cat”:
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