Remove handling of SIGTERM

New version of socket.io cannot terminate cleanly when there are active
connections:

https://github.com/socketio/socket.io/issues/1602

src/index.ts

@@ -3,21 +3,12 @@ if (!process.env.DEBUG) {
   process.env.DEBUG = 'peercalls'
 }
 
-import app from './server/app'
 import _debug from 'debug'
+import forEach from 'lodash/forEach'
+import { io } from './server/app'
+import app from './server/app'
 
 const debug = _debug('peercalls')
 
 const port = process.env.PORT || 3000
-const server = app.listen(port, () => debug('Listening on: %s', port))
-
-function close () {
-  debug('Closing server...')
-  server.close(() => {
-    debug('Bye!')
-    process.exit()
-  })
-}
-
-process.on('SIGINT', close)
-process.on('SIGTERM', close)
+app.listen(port, () => debug('Listening on: %s', port))

src/server/app.ts

@@ -17,7 +17,7 @@ debug(`WebSocket URL: ${SOCKET_URL}`)
 
 const app = express()
 const server = createServer(config, app)
-const io = SocketIO(server, { path: SOCKET_URL })
+export const io = SocketIO(server, { path: SOCKET_URL })
 
 app.set('x-powered-by', false)
 app.locals.version = require('../../package.json').version

src/server/server.test.ts

@@ -1,11 +1,12 @@
 import express from 'express'
-import http from 'http'
+import http, { RequestListener } from 'http'
 import https from 'https'
 import { createServer } from './server'
 
 describe('server', () => {
 
-  let app: Express.Application, config: any
+  let app: RequestListener
+  let config: any
   beforeEach(() => {
     config = {}
     app = express()

src/server/server.ts

@@ -1,16 +1,18 @@
 import { readFileSync } from 'fs'
 import { resolve, join } from 'path'
 import { Config } from './config'
+import { createServer as createHTTPSServer } from 'https'
+import { createServer as createHTTPServer, RequestListener } from 'http'
 
 const projectRoot = resolve(join(__dirname, '../..'))
 
 const readFile = (file: string) => readFileSync(resolve(projectRoot, file))
 
-export function createServer (config: Config, app: Express.Application) {
+export function createServer (config: Config, app: RequestListener) {
   if (config.ssl) {
     const key = readFile(config.ssl.key)
     const cert = readFile(config.ssl.cert)
-    return require('https').createServer({ key, cert }, app)
+    return createHTTPSServer({ key, cert }, app)
   }
-  return require('http').createServer(app)
+  return createHTTPServer(app)
 }