feat: implement cluster-friendly engine

Author: darrachequesne

.github/workflows/ci.yml

@@ -21,6 +21,17 @@ jobs:
           - 18
           - 20
 
+    services:
+      redis:
+        image: redis:7
+        options: >-
+          --health-cmd "redis-cli ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 6379:6379
+
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4

package-lock.json

@@ -4,6 +4,7 @@
     "packages/socket.io-component-emitter",
     "packages/engine.io-parser",
     "packages/engine.io",
+    "packages/socket.io-clustered-engine",
     "packages/engine.io-client",
     "packages/socket.io-adapter",
     "packages/socket.io-parser",
@@ -47,10 +48,12 @@
     "express-session": "^1.18.0",
     "has-cors": "^1.1.0",
     "helmet": "^7.1.0",
+    "ioredis": "^5.4.1",
     "mocha": "^10.6.0",
     "node-forge": "^1.3.1",
     "nyc": "^17.0.0",
     "prettier": "^2.8.8",
+    "redis": "^4.6.15",
     "rimraf": "^6.0.0",
     "rollup": "^2.79.1",
     "rollup-plugin-terser": "^7.0.2",

package.json

@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2024-present Guillermo Rauch and Socket.IO contributors
+
+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.