This document defines how to describe MQTT 5-specific information on AsyncAPI.

Deprecation Warning: MQTT version 5 specific bindings are deprecated in favor of MQTT bindings that are not version specific.

Version

Current version is 0.2.0.

Server Binding Object

This object contains information about the server representation in MQTT5.

Fixed Fields

Field Name	Type	Description
sessionExpiryInterval	Schema Object | Reference Object | integer	Session Expiry Interval in seconds or a Schema Object containing the definition of the interval.
bindingVersion	string	The version of this binding. If omitted, "latest" MUST be assumed.

This object MUST contain only the properties defined above.

Example

servers:
  production:
    bindings:
      mqtt5:
        sessionExpiryInterval: 60
        bindingVersion: 0.2.0

servers:
  production:
    bindings:
      mqtt5:
        sessionExpiryInterval:
          type: integer
          minimum: 100
        bindingVersion: 0.2.0

Channel Binding Object

This object MUST NOT contain any properties. Its name is reserved for future use.

Operation Binding Object

This object MUST NOT contain any properties. Its name is reserved for future use.

Message Binding Object

This object MUST NOT contain any properties. Its name is reserved for future use.