Error: connect ECONNREFUSED ::1:8081

[bajajcodes]

On running tests locally getting error messages from a few tests which involve after each hook call.

NPM SCRIPTS

yarn run test
yarn run test-unit
yarn run test-integration
yarn run tdd:watch

Stack Trace

     Error: connect ECONNREFUSED ::1:8081
      at Function.AxiosError.from (node_modules/axios/dist/node/axios.cjs:725:14)
      at RedirectableRequest.handleRequestError (node_modules/axios/dist/node/axios.cjs:2467:25)
      at ClientRequest.eventHandlers.<computed> (node_modules/follow-redirects/index.js:14:24)
      at Socket.socketErrorListener (_http_client.js:475:9)
      at emitErrorNT (internal/streams/destroy.js:106:8)
      at emitErrorCloseNT (internal/streams/destroy.js:74:3)
      at processTicksAndRejections (internal/process/task_queues.js:82:21)

Info

• OS: MACOS
• node: 14
• dev server: working
• validate-setup: success

yarn run v1.22.19
$ node scripts/validateSetup.js
✅ GitHub credentials are properly set.
✅ Firestore config is correct.
✅ Firestore config is not empty.
✅ Local development has permission to read and write in firestore.

🎉🎉🎉🎉🎉🎉 Success! The backend was successfully set up 👍. 🎉🎉🎉🎉🎉
✨  Done in 4.83s.

• Firebase debug log: Log

Casuse Identified

• IPV6 issue
• In short, it has to do with how DNS on a machine is being resolved in Node. Most of the emulators bind to the ipv4 addresses, but if a process resolves localhost to the ipv6 address [::1] that can cause the connections to fail (since emulators don't tend to bind on the ipv6 address).
• Issue Refference
• Firebase Debug log, issue detection

Feb 08, 2023 6:46:38 AM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
INFO: Detected HTTP/2 connection.

• Firebase debug log, issue acceptance

[debug] [2023-02-07T16:21:41.589Z] [logging] Logging Emulator only supports listening on one address (127.0.0.1). Not listening on ::1

Workaround Tried

• Changing ports
• Upgrading firebase cli
• Installing using npm
• Worked: Changing host address Change the following inside firebae.json.

Previously firebase.json
{
  "emulators": {
    "firestore": {
      "port": 8081
    },
    "ui": {
      "enabled": true,
      "port": 4000
    }
  }
}

After changes firebase.json
{
  "emulators": {
    "firestore": {
      "host": "0.0.0.0",
      "port": 8081
    },
    "ui": {
      "host": "0.0.0.0",
      "enabled": true,
      "port": 4200
    }
  }
}

Reference

• Firebase Tools Issue, ECONNREFUSED