Messages

A message is a packet of information sent from producers to consumers. Messages are the central units of information that clients exchange over PubSub+ event brokers and uses the Solace Message Format (SMF) protocol for client and event broker communications. SMF uses a proprietary binary message format that provides an efficient method of encapsulating messages for transmission over the platform. For information on message parts, see What Is Messaging?

Messages exchanged between PubSub+ Messaging API have formats that are compatible across all PubSub+ Messaging API. In other words, messages produced by one PubSub+ Messaging API can be understood by any other consuming PubSub+ Messaging API.

The following table lists how a message is represented for each PubSub+ Messaging API.

PubSub+ Messaging API
PubSub+ Messaging API	Use
PubSub+ Java RTO API	`com.solacesystems.solclientj.core.handle.MessageHandle`
PubSub+ C API	`solClient_opaqueMsg_pt`
PubSub+ .NET API	`SolaceSystems.Solclient.Messaging.IMessage`
PubSub+ JavaScript API and PubSub+ Node.js API	`solace.Message`

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