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In an enterprise which uses Message Channels to connect between two different applications, the information is required to be packaged you need to package information as a data set, which enables transmission of information . Data sets facilitate information transmission from one application to the otheranother. Message EIP is used as the transfer medium in this case. A Message should comprise comprises of two parts - a header which as a header and a body. A header holds information describing about the data being transmitted, its origin and its destination, and a Body which destination. A body holds the actual data.
For more information on Message EIP, refer to http://www.eaipatterns.com/Message.html.
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As described in Messaging Bridge EIP, irrespective of the format of a request is sent you send from the client application, WSO2 ESB transforms the message into a SOAP envelop, which adheres to the Message EIP. The following format code segment illustrates the transformed message of a typical request. Notice that it has a header and a body.
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