Initial commit with fastify/fastify-websocket as a template

.gitignore

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+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+

.travis.yml

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+language: node_js
+node_js:
+  - "8"
+  - "7"
+  - "6"
+  - "4"
+notifications:
+  email:
+    on_success: never
+    on_failure: always

LICENSE

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+MIT License
+
+Copyright (c) 2017 Gabe Jackson
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# fastify-ws
+
+<!-- [![Greenkeeper badge](https://badges.greenkeeper.io/fastify/fastify-ws.svg)](https://greenkeeper.io/) -->
+
+WebSocket support for [Fastify](https://github.com/fastify/fastify) built on the blazing fast [ws](http://npm.im/websocket-stream) library.
+
+## Example
+In `server.js`:
+```js
+'use strict'
+
+const fastify = require('fastify')()
+
+fastify.register(require('fastify-ws'), {
+  pingInterval: 10000 // Keep the connection alive by sending ping every 10 seconds (default: 30 seconds)
+})
+
+fastify.ready(err => {
+  if (err) throw err
+
+  fastify.wsServer
+    .on('connection', ws => {
+      ws.on('message', msg => ws.send(msg)) // Creates an echo server
+    })
+})
+
+fastify.listen(34567)
+```
+
+Then run `node server.js` and navigate to `http://localhost:34567` in your browser. In the browser's JavaScript console, open a client-side WebSocket connection:
+```js
+const host = location.origin.replace(/^http/, 'ws')
+const ws = new WebSocket(host)
+ws.onmessage = msg => console.log(msg.data)
+```
+
+Then, still in the browser console, send some messages to the server and watch as they're echoed back to you:
+```js
+ws.send('WebSockets are awesome!')
+// => undefined
+// LOG: WebSockets are awesome!
+```
+
+## TODO
+
+* [ ] Get TAP test suite to finish without resorting to `process.exit()`
+
+## License
+
+Licensed under [MIT](./LICENSE).

index.js

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+'use strict'
+
+const fp = require('fastify-plugin')
+
+module.exports = fp((fastify, opts, next) => {
+  const WebSocketServer = require('ws').Server
+  const wss = new WebSocketServer({
+    server: fastify.server
+  })
+
+  const keepAlive = ws => {
+    ws.alive = true
+    const stayAlive = () => { ws.alive = true }
+    ws.on('pong', stayAlive)
+  }
+
+  wss.on('connection', keepAlive)
+
+  const pingInterval = opts.pingInterval || 30000
+
+  setInterval(() => wss.clients.forEach(ws => {
+    if (ws.alive === false) return ws.terminate()
+    ws.alive = false
+    ws.ping('', false, true)
+  }), pingInterval)
+
+  fastify.decorate('wsServer', wss)
+
+  next()
+})