adding artillery perf test for websockets

Author: jkyberneees

.gitignore

@@ -59,3 +59,5 @@ typings/
 
 # next.js build output
 .next
+
+.DS_Store

benchmark/websocket/artillery-perf1.yml

@@ -0,0 +1,11 @@
+config:
+  target: "ws://localhost:8080/echo"
+  phases:
+    - duration: 15  # test for 20 seconds
+      arrivalRate: 20 # every second, add 10 users
+      rampTo: 500 # ramp it up to 100 users over the 20s period
+      name: "Ramping up the load"
+scenarios:
+  - engine: "ws"
+    flow:
+      - send: 'echo me'

benchmark/websocket/echo.js

@@ -0,0 +1,26 @@
+'use strict'
+
+const gateway = require('../../index')
+const WebSocket = require('faye-websocket')
+const http = require('http')
+
+gateway({
+  routes: [{
+    proxyType: 'websocket',
+    prefix: '/echo',
+    target: 'ws://127.0.0.1:3000'
+  }]
+}).start(8080)
+
+
+const service = http.createServer()
+service.on('upgrade', (request, socket, body) => {
+  if (WebSocket.isWebSocket(request)) {
+    const ws = new WebSocket(request, socket, body)
+    
+    ws.on('message', (event) => {
+      ws.send(event.data)
+    })
+  }
+})
+service.listen(3000)

package.json

@@ -42,6 +42,7 @@
   ],
   "devDependencies": {
     "@types/express": "^4.17.11",
+    "artillery": "^2.0.0-6",
     "aws-sdk": "^2.1037.0",
     "chai": "^4.3.4",
     "cors": "^2.8.5",