<bpmn2:serviceTask id="ServiceTask_1" name="My service task">
<bpmn2:extensionElements>
<camunda:connector>
<camunda:connectorId>http-connector</camunda:connectorId>
<camunda:inputOutput>
<camunda:inputParameter name="url">http://camunda.org</camunda:inputParameter>
<camunda:inputParameter name="method">GET</camunda:inputParameter>
<camunda:outputParameter name="returnCode">${statusCode}</camunda:outputParameter>
</camunda:inputOutput>
</camunda:connector>
</bpmn2:extensionElements>
</bpmn2:serviceTask>