The Call mediator is used to send messages out of the ESB EI to an endpoint. You can invoke services either in blocking or non-blocking manner.
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In blocking mode, Call mediator uses the <ESB<EI_HOME>/repository/conf/axis2/axis2_blocking_client.xml file as the Axis2 configuration. For more information about the blocking transport related parameters that can be configured for the Call mediator, see Configuring axis2_blocking_client.xml.
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In the following sample configuration, the Header Mediator is used to add the action, the PayloadFactory Mediator is used to store the the request message and the Call mediator is used to invoke a backend service.
You will see that the payload of the request and header action are sent to the backend. After successful backend service invocation, you will see that the response of the service is retrieved by the ESB EI and sent to the client as the response using the Respond Mediator.
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