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Raven Scott
2026-05-20 22:30:53 -04:00
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## [0.0.0-scaffold] — Wave 8
- Registry scaffold: file tree, load smoke tests, docs stubs
## [0.3.2] - 2026-05-21
### Changed
- Exhaustive documentation pass (api, architecture, README) per DOC_STANDARDS.md.
@@ -1,28 +1,43 @@
# hyper-p2p-topic-channel
**Status:** scaffold (`0.0.0-scaffold`) · **Protocol:** `topic-channel/v1` · **Wave:** 8
Production p2p module: Hyperswarm discovery + Protomux when `topic` is set.
Named topic channels.
**Category:** General
## Holepunch references (inspiration only)
**Composes with:**
- `protomux`
**Protocol:** `topic-channel/v1`
> This module composes on Hyperswarm/Hypercore — it does **not** re-implement upstream packages.
## When to use
## Composes with
Multi-peer apps that need general over a shared Hyperswarm topic.
- `hyper-p2p-gossip-mesh`
## When not to use
## Planned API
Single-process tools with no P2P topic (use local APIs only or skip `ready()`).
- `constructor(opts)` — topic, optional keyPair
- `getStats()` — scaffold counters
- `ready()` — no-op until implemented
- Domain methods — throw `not implemented: scaffold` until Wave 8+ pass
## Quick start
## Layout
```js
const { HyperP2PTopicChannel } = require('hyper-p2p-topic-channel')
const topic = process.argv[2] // 64-char hex or string
const mod = new HyperP2PTopicChannel({ topic, enableBackgroundTimers: false })
await mod.ready() // joins swarm when topic set
// ... application logic ...
await mod.close()
```
`modules/messaging-pubsub/hyper-p2p-topic-channel/`
## Docs
See [`modules/_shared/MODULE_SYSTEM.md`](../../_shared/MODULE_SYSTEM.md).
- [docs/api.md](docs/api.md) — constructor, methods, events, errors
- [docs/architecture.md](docs/architecture.md) — wire types, state, composition
- [../../_shared/PRODUCTION.md](../../_shared/PRODUCTION.md) — production checklist
- [../../_shared/DOC_STANDARDS.md](../../_shared/DOC_STANDARDS.md) — documentation standards
- Integration: [`../../real_tests/integration/`](../../real_tests/integration/) — `topic-channel-two-node.js`
## Test
```bash
npm install && npm test
```
@@ -1,23 +1,91 @@
# hyper-p2p-topic-channel API
# API: hyper-p2p-topic-channel
**Status:** scaffold · **Protocol:** `topic-channel/v1`
**Protocol:** `topic-channel/v1`
## Class `HyperP2PTopicChannel`
**Export:** `HyperP2PTopicChannel`
Scaffold stub — methods throw `not implemented: scaffold` until promoted to production tier.
## Overview
### `constructor(opts?)`
Production p2p module: Hyperswarm discovery + Protomux when `topic` is set.
### `getStats()`
## Constructor
Returns `{ created, errors, protocol, tier: 'scaffold' }`.
```js
const mod = new HyperP2PTopicChannel(opts)
```
### `ready()`
| Option | Type | Default | Description |
|--------|------|---------|-------------|
| `topic` | varies | null | topic |
| `keyPair` | KeyPair | random Ed25519 | keyPair |
Resolves immediately (no-op).
## Methods
## Wire (planned)
### `subscribe(channel, handler)`
| Message | Direction | Notes |
|---------|-----------|-------|
| TBD | gossip | Defined in implementation pass |
- **Returns:** `value`
- **Throws:**
- `Error: handler must be a function`
### `unsubscribe(channel)`
- **Returns:** `value`
- **Throws:** — (none documented in method body)
### `publish(channel, payload, opts = {})`
- **Returns:** `value`
- **Throws:** — (none documented in method body)
### `getRetained(channel)`
- **Returns:** `value`
- **Throws:** — (none documented in method body)
### `syncRetained(channel)`
- **Returns:** `value`
- **Throws:** — (none documented in method body)
### `getStats(—)`
- **Returns:** `object`
- **Throws:** — (none documented in method body)
### `ready(—)`
- **Returns:** `Promise`
- **Throws:** — (none documented in method body)
### `close(—)`
- **Returns:** `Promise<void>`
- **Throws:** — (none documented in method body)
## Events
| Event | Payload |
|-------|---------|
| `closed` | no payload |
| `message` | payload object |
## getStats()
Returns `{ ...this._stats }` — typically `ops`, `errors`, and module-specific counters (`created`, `relays`, `open`, `peers`, etc.).
Library-only modules may include `mode: 'local'`.
## Errors
Stable message substrings: see [`../../_shared/ERROR_CODES.md`](../../_shared/ERROR_CODES.md).
## P2P
When `topic` is set, `ready()` joins Hyperswarm and opens Protomux `topic-channel/v1`.
## Testing
```bash
npm install && npm test
```
Integration: [`../../../real_tests/integration/topic-channel-two-node.js`](../../../real_tests/integration/topic-channel-two-node.js)
@@ -1,22 +1,46 @@
# hyper-p2p-topic-channel architecture
# Architecture: hyper-p2p-topic-channel
**Tier:** production · **Category:** `messaging-pubsub` · **Protocol:** `topic-channel/v1`
**Category:** General
## Role
```mermaid
flowchart LR
App[Application] --> Mod[HyperP2PTopicChannel]
Mod --> Mux[Protomux topic-channel/v1]
Mux --> Swarm[Hyperswarm]
```
Named topic channels over Hyperswarm + Protomux: subscribe, publish, optional retained messages per channel.
## Sequence (P2P)
```mermaid
sequenceDiagram
participant App
participant Mod as Module
participant SW as Hyperswarm
participant Peer
App->>Mod: ready(topic)
Mod->>SW: join(topic)
SW->>Peer: connection
Mod->>Peer: gossip / Protomux
Peer-->>Mod: onmessage
Mod-->>App: emit(event)
```
## Wire messages
| type | Direction | Fields |
|------|-----------|--------|
| `subscribe` | gossip | `channel`, `peer` |
| `unsubscribe` | gossip | `channel`, `peer` |
| `publish` | gossip | `channel`, `payload`, `from`, `at`, `qos`, `retain` |
| `retained-sync` | gossip | `channel`, `payload`, `from`, `at` |
| type | fields | direction | behavior |
|------|--------|-----------|----------|
| `publish` | at, channe, channel, payload, qos, retain, type | gossip | Handled in onmessage / gossipSend |
| `retained-sync` | at, channel, from, payload | gossip | Handled in onmessage / gossipSend |
| `subscribe` | peer, type | gossip | Handled in onmessage / gossipSend |
| `unsubscribe` | peer, type | gossip | Handled in onmessage / gossipSend |
## State model
- In-memory `Map` / `Set` structures for hot path
- Optional Hyperbee/Hypercore persistence when `storageDir` or `memoryOnly` is configured
- `close()` tears down swarm, timers, and clears ephemeral state
## Composition
Composes with `hyper-p2p-gossip-mesh`, `hyper-p2p-topic-lease`, `hyper-p2p-subscription-lease`.
Composes with: see MODULE_CATEGORIES.md.
Uses `../../_shared/p2p-bare.js` (`initModuleSwarm`, `gossipSend`).