Module protocol 

Wire protocol for room discovery and message broadcast.

Two gossipsub topics:

• ROOMS_TOPIC — global, every node subscribes. Used for room advertisements (so all peers see “rooms in this network”).
• format!("{ROOM_TOPIC_PREFIX}{room_id}") — per-room. Only members of a room subscribe. All room messages flow here.

Structs

RoomAnnouncement

Broadcast on the global ROOMS_TOPIC. Each peer republishes the rooms they’re currently in, periodically. Listeners maintain a cache with TTL.

SignedRoomMessage

Application-level signed envelope around a RoomMessage. Used for any message whose authenticity matters beyond gossipsub’s transport- level signing.

Enums

RoomMessage

All messages on a room’s per-room topic.

WireMessage

What actually gets serialized onto a per-room gossipsub topic. New in v0.3.0 — previously, the raw RoomMessage JSON went on the wire. All outgoing messages now flow through this envelope so the receiver can tell signed from unsigned at the outer layer without trial- parsing. Tagged so future variants don’t silently misparse.

Constants

ROOMS_TOPIC

ROOM_TOPIC_PREFIX

Functions

encode_wire

Serialize an unsigned RoomMessage to its on-wire bytes inside the new WireMessage::Plain envelope. The single helper keeps every send site in app/mod.rs from open-coding the wrap.

encode_wire_signed

Serialize a SignedRoomMessage envelope to its on-wire bytes.

room_topic