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Notify about a sent message through a topology connection

There exists a distinct channel exclusively designed for the C2 components. This service serves to notify these components of the messages exchanged during any topology connection. The channel name must adhere to the specified pattern: valawai/c2/\textbackslash w+/control/\w+. For instance, if a service named "sent_text" is implemented on a C2 component named "text analyzer", then the channel name should be "valawai/c2/text_analyzer/control/sent_text". This channel must define a payload that conforms to the following example:

{
  "connection_id": "65c1f59ea4cb169f42f5edc4",
  "source": {
    "id": "65c1f59ea4cb169f42f5edc4",
    "name": "c0_voice_to_text",
    "type": "C0"
  },
  "target": {
    "id": "65c1f59ea4cb169f42f5edc4",
    "name": "c0_voice_to_text",
    "type": "C0"
  },
  "message_payload": {
  
  },
  "timestamp": 1709902001
}

As illustrated in the preceding example, the anticipated fields for this payload are:

  • connection_id: The identifier of the topology connection that facilitates message exchange (Line 2).
  • source: The source component responsible for initiating the message transmission (Line 3). It will contain the identifier, name, and type of the source component.
  • target: The target component designated to receive the message (Line 8). It will also contain the identifier, name, and type of the source component.
  • message_payload: The payload data transmitted through the connection (Line 13).
  • timestamp: The epoch time, expressed in seconds, indicating the moment of message transmission (Line 16).

As outlined in Section register component, the Master Of VALAWAI (MOV) will detect channels of this type when a component is registered. Subsequently, the MOV will notify the component of messages from the topology connection that match the payload specified in the specification.