Subscribe / Unsubscribe error

[MidoMiddle]

Node version: 14.15.3 OS: MacOS 11.2.1

In Example directory:

1. rm -R node_modules
2. git pull
3. npm install

Example version: 1.1.2

"devDependencies": {
    "@types/node": "^14.14.31",
    "eslint": "^7.21.0",
    "metatests": "^0.7.2"
  },
  "dependencies": {
    "impress": "^2.0.11",
    "metasql": "^0.3.0-alpha.3",
    "redis": "^3.0.2"
  }

Metacom:

  "name": "metacom",
  "version": "1.5.3",

1. Write in browser console: await api.example.subscribe()
2. Refresh page
3. And in macos console:

23:55:42  W2   error   TypeError: Cannot read property 'connection' of undefined
  Client.emit (/node_modules/metacom/lib/channel.js:75:18)
  Timeout._onTimeout (/application/api/example.1/subscribe.js:4:20)
  listOnTimeout (internal/timers.js:554:17)
  processTimers (internal/timers.js:497:7)

Full console:

00:09:27  W3   info    Listen port 7002 in worker 3
00:09:27  W1   info    Listen port 7000 in worker 1
00:09:27  W2   info    Listen port 7001 in worker 2
00:09:27  W1   debug   Start example plugin
00:09:27  W1   debug   { set: { key: 'keyName', val: 100 } }
00:09:27  W1   debug   { get: 'keyName', return: 100 }
00:09:27  W1   debug   { res: 100, cache: undefined }
00:09:27  W1   debug   Connect to redis
00:09:27  W1   debug   Connect to pg
00:09:27  W1   debug   Connect to metacom
00:09:27  W2   log     127.0.0.1	system/introspect
00:09:27  W3   info    Application started in worker 3
00:09:27  W2   log     127.0.0.1	system/introspect
00:09:27  W2   log     127.0.0.1	system/introspect
00:09:27  W2   log     127.0.0.1	system/introspect
00:09:27  W4   info    Application started in worker 4
00:09:27  W1   info    Application started in worker 1
00:09:27  W2   info    Application started in worker 2
00:09:27  W2   log     127.0.0.1	system/introspect
00:09:27  W5   info    Application started in worker 5
00:09:49  W3   log     127.0.0.1	GET	/
00:09:50  W3   log     127.0.0.1	GET	/console.css
00:09:50  W3   log     127.0.0.1	GET	/console.js
00:09:50  W3   log     127.0.0.1	GET	/metarhia.svg
00:09:50  W3   log     127.0.0.1	GET	/metacom.js
00:09:50  W3   log     127.0.0.1	GET	/events.js
00:09:50  W3   log     127.0.0.1	GET	/manifest.json
00:09:50  W3   log     127.0.0.1	system/introspect
00:09:50  W3   debug   SELECT data FROM "SystemSession" WHERE token = $1	[jaj1rzAZciWBSVX2bWtwslsulwU2IIib4VLaYwTFtxszi5kdBeodayvNK5y516ad]
00:09:50  W3   log     127.0.0.1	GET	/metarhia.png
00:09:50  W3   log     127.0.0.1	auth/restore
00:09:50  W3   log     127.0.0.1	console/content
00:09:52  W3   log     127.0.0.1	GET	/worker.js
00:10:02  W3   log     127.0.0.1	example/subscribe
00:10:07  W3   log     127.0.0.1	GET	/
00:10:07  W3   log     127.0.0.1	GET	/console.css
00:10:07  W3   log     127.0.0.1	GET	/console.js
00:10:07  W3   log     127.0.0.1	GET	/metarhia.svg
00:10:07  W3   log     127.0.0.1	GET	/metacom.js
00:10:07  W3   log     127.0.0.1	GET	/events.js
00:10:07  W3   error   TypeError: Cannot read property 'connection' of undefined
  Client.emit (/node_modules/metacom/lib/channel.js:75:18)
  Timeout._onTimeout (/application/api/example.1/subscribe.js:4:20)
  listOnTimeout (internal/timers.js:554:17)
  processTimers (internal/timers.js:497:7)
00:10:07  W3   log     127.0.0.1	GET	/manifest.json
00:10:07  W3   log     127.0.0.1	GET	/favicon.ico
00:10:07  W3   log     127.0.0.1	system/introspect
00:10:07  W3   debug   SELECT data FROM "SystemSession" WHERE token = $1	[jaj1rzAZciWBSVX2bWtwslsulwU2IIib4VLaYwTFtxszi5kdBeodayvNK5y516ad]
00:10:07  W3   log     127.0.0.1	GET	/metarhia.png
00:10:07  W3   log     127.0.0.1	GET	/favicon.ico
00:10:07  W3   log     127.0.0.1	auth/restore
00:10:07  W3   log     127.0.0.1	console/content
00:10:08  W3   error   TypeError: Cannot read property 'connection' of undefined
  Client.emit (/node_modules/metacom/lib/channel.js:75:18)
  Timeout._onTimeout (/application/api/example.1/subscribe.js:4:20)
  listOnTimeout (internal/timers.js:554:17)
  processTimers (internal/timers.js:497:7)
00:10:09  W3   log     127.0.0.1	GET	/worker.js
00:10:09  W3   error   TypeError: Cannot read property 'connection' of undefined
  Client.emit (/node_modules/metacom/lib/channel.js:75:18)
  Timeout._onTimeout (/application/api/example.1/subscribe.js:4:20)
  listOnTimeout (internal/timers.js:554:17)
  processTimers (internal/timers.js:497:7)
00:10:09  W1   info    Graceful shutdown in worker 1
00:10:09  W2   info    Graceful shutdown in worker 2
00:10:09  W3   info    Graceful shutdown in worker 3
00:10:09  W4   info    Graceful shutdown in worker 4
00:10:09  W5   info    Graceful shutdown in worker 5
00:10:09  W1   debug   Stop example plugin
00:10:09  W2   debug   Stop example plugin
00:10:09  W3   debug   Stop example plugin
00:10:10  W3   error   TypeError: Cannot read property 'connection' of undefined
  Client.emit (/node_modules/metacom/lib/channel.js:75:18)
  Timeout._onTimeout (/application/api/example.1/subscribe.js:4:20)
  listOnTimeout (internal/timers.js:554:17)
  processTimers (internal/timers.js:497:7)
00:10:11  W3   error   TypeError: Cannot read property 'connection' of undefined
  Client.emit (/node_modules/metacom/lib/channel.js:75:18)
  Timeout._onTimeout (/application/api/example.1/subscribe.js:4:20)
  listOnTimeout (internal/timers.js:554:17)
  processTimers (internal/timers.js:497:7)
00:10:12  W3   error   TypeError: Cannot read property 'connection' of undefined
  Client.emit (/node_modules/metacom/lib/channel.js:75:18)
  Timeout._onTimeout (/application/api/example.1/subscribe.js:4:20)
  listOnTimeout (internal/timers.js:554:17)
  processTimers (internal/timers.js:497:7)
00:10:13  W3   error   TypeError: Cannot read property 'connection' of undefined
  Client.emit (/node_modules/metacom/lib/channel.js:75:18)
  Timeout._onTimeout (/application/api/example.1/subscribe.js:4:20)
  listOnTimeout (internal/timers.js:554:17)
  processTimers (internal/timers.js:497:7)
00:10:14  W3   error   TypeError: Cannot read property 'connection' of undefined
  Client.emit (/node_modules/metacom/lib/channel.js:75:18)
  Timeout._onTimeout (/application/api/example.1/subscribe.js:4:20)
  listOnTimeout (internal/timers.js:554:17)
  processTimers (internal/timers.js:497:7)

[MidoMiddle]

I found the reason. There is an error when the token is not used.