pikku-deploy-uws

name	pikku-deploy-uws
description	Use when deploying a Pikku app with uWebSockets.js. Covers PikkuUWSServer with built-in HTTP and WebSocket support, and pikkuWebsocketHandler for standalone ws library. TRIGGER when: code imports @pikku/uws or @pikku/ws, user mentions uWebSockets or high-performance server, or start.ts creates a PikkuUWSServer. DO NOT TRIGGER when: just defining functions/wirings without uWS-specific code.

Pikku uWebSockets.js Deployment

Agent Operating Procedure

Use this skill as an execution checklist, not reference material.

1. Discover before editing. Prefer OpenCode tools such as pikku-meta when available; otherwise run the relevant pikku meta ... --json command and inspect only the focused output you need.
2. Identify the source files that own the behavior. Do not start by reading generated output, .pikku, node_modules, vendored packages, or broad build artifacts.
3. Make the smallest source change that satisfies the task. Keep generated files generated, and avoid hand-editing SDKs, schema output, or typegen.
4. Validate with the narrowest relevant command first, then run pikku-verify or pikku all when functions, wirings, schemas, or generated clients may have changed.
5. If validation fails, fix the source cause and rerun validation. Do not paper over generated errors by editing generated files.

Highest-throughput option among Pikku's runtimes. Handles both HTTP and WebSocket automatically.

yarn add @pikku/uws

import { PikkuUWSServer } from '@pikku/uws'
import './.pikku/pikku-bootstrap.gen.js'
import { createConfig, createSingletonServices } from './services.js'

const config = await createConfig()
const singletonServices = await createSingletonServices(config)

const appServer = new PikkuUWSServer(
  { ...config, hostname: 'localhost', port: 4002 },
  singletonServices.logger
)
appServer.enableExitOnSigInt()
await appServer.init()
await appServer.start()

Constructor: new PikkuUWSServer(config, logger)

Config extends CoreConfig with: port, hostname, healthCheckPath?

Methods: init(httpOptions?), start(), stop(), enableExitOnSigInt()

Property: app: uWS.App — Direct access to uWebSockets app instance.

WebSocket Standalone (ws library)

For WebSocket-only servers using the ws library:

yarn add @pikku/ws

import { pikkuWebsocketHandler } from '@pikku/ws'
import { stopSingletonServices } from '@pikku/core'
import { Server } from 'http'
import { WebSocketServer } from 'ws'
import './.pikku/pikku-bootstrap.gen.js'

const server = new Server()
const wss = new WebSocketServer({ noServer: true })

pikkuWebsocketHandler({
  server,
  wss,
  logger: singletonServices.logger,
})

server.listen(4002, 'localhost', () => {
  console.log('Server running at http://localhost:4002/')
})

process.on('SIGINT', async () => {
  await stopSingletonServices()
  wss.close()
  server.close()
  process.exit(0)
})