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Shade/packages/shade-transport-webrtc
Sterister 0bdf9e859c
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release(v4.0.2): consumer-strict reader-shape fixes
4.0.1's typecheck gate compiled each package internally against
lib: ["ES2022"]. That doesn't catch types that only fail when
*consumer* code (lib: ["DOM"] + exactOptionalPropertyTypes) tries to
assign a native browser type into one of our locally-defined narrower
types. Dispatch hit one such case in @shade/files inline-threshold.ts.

This release adds a tests/consumer-strict/ smoke project to the
pre-publish gate. It compiles a tiny "as if I were a downstream app"
TS file against:

  lib: ["ES2022", "DOM", "DOM.Iterable"]
  types: ["bun-types"]
  exactOptionalPropertyTypes: true
  strict: true
  paths → packages/*/src/index.ts

scripts/typecheck-all.ts now runs the smoke after per-package checks.
Both must pass before publish:dry / publish:all proceeds.

### Fixed
- @shade/files inline-threshold.ts: MinimalReader<T> rewritten as the
  explicit disjoint union { done:false, value:T } | { done:true,
  value?: T | undefined } that's assignable from every native reader
  shape (bun, DOM, node:stream/web). Fixes the
  "ReadableStreamReadResult is not assignable" Dispatch reported.
- @shade/files streams-bridge (client + server): stash setTimeout
  return in a local before .unref?.() via { unref?: () => void } cast.
  Fluent .unref?.() failed under lib: ["DOM"] (setTimeout returns
  number there).
- @shade/sdk background.ts: same setInterval .unref?.() fix.

Wire-compatible. No API shape changed.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03 19:51:46 +02:00
..

@shade/transport-webrtc

V3.11 — direct peer-to-peer chunk transport for Shade transfers via RTCDataChannel. Plugs into @shade/transfer's ITransferTransport contract and wires automatically into @shade/sdk via shade.configureWebRTC().

import { createShade } from '@shade/sdk';
import { nativeRtcFactory } from '@shade/transport-webrtc';

const shade = await createShade({ prekeyServer });
shade.configureWebRTC({ factory: nativeRtcFactory() });
shade.configureTransfers({ resolveBaseUrl });

await shade.upload({ to: 'bob', input: file });    // → P2P when NAT allows,
                                                    //   HTTP otherwise.

See docs/webrtc.md for the full guide: NAT-traversal realities, TURN config, glare resolution, wire format, diagnostics, and end-to-end test recipes.

What's inside

  • WebRtcConnection — one peer connection between two Shade endpoints, driving offer/answer/ICE through Shade's own ratchet.
  • WebRtcConnectionManager — per-peer pool with deterministic glare resolution.
  • WebRtcSignalingChannel — JSON signaling messages multiplexed over Shade.send / Shade.onMessage.
  • WebRtcTransferTransport — implements ITransferTransport over the managed DataChannel; ack-correlated by 16-byte requestId tokens.
  • MemoryRtcFactory — in-process WebRTC simulator for tests.
  • nativeRtcFactory() — adapter over globalThis.RTCPeerConnection (browsers / Deno / Cloudflare Workers).

Adapters

@shade/transport-webrtc ships only the standard-API adapter (nativeRtcFactory). For Bun / Node, wrap your library of choice behind the IRtcFactory interface — only createPeerConnection, createDataChannel, and standard addEventListener are required.

Recommended adapters: