Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client

[mStirner]

[2025.01.20 - 12:27.36.844][debug][http] 127.0.0.1 - [POST] /api/endpoints/678e31d03653b0b33eb24390/commands/678e31d03653b0b33eb24391
Error: WebSocket is not open: readyState 0 (CONNECTING)
    at WebSocket.send (/home/marc/projects/OpenHaus/backend/node_modules/ws/lib/websocket.js:450:13)
    at Command.<anonymous> (/home/marc/projects/OpenHaus/backend/plugins/e0f59a54-cb97-4199-8a1b-dfed5ea680ac/endpoint-handler.js:76:28)
    at Command.trigger (/home/marc/projects/OpenHaus/backend/components/endpoints/class.command.js:271:16)
    at /home/marc/projects/OpenHaus/backend/routes/router.api.endpoints.js:42:21
    at Layer.handle [as handle_request] (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/router/layer.js:95:5)
    at next (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/router/route.js:149:13)
    at Route.dispatch (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/router/route.js:119:3)
    at Layer.handle [as handle_request] (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/router/layer.js:95:5)
    at /home/marc/projects/OpenHaus/backend/node_modules/express/lib/router/index.js:284:15
    at param (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/router/index.js:365:14)
Command timedout! Execution was not successful, worker function: [Function (anonymous)]
node:_http_outgoing:652
    throw new ERR_HTTP_HEADERS_SENT('set');
    ^

Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
    at ServerResponse.setHeader (node:_http_outgoing:652:11)
    at ServerResponse.header (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/response.js:794:10)
    at ServerResponse.send (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/response.js:174:12)
    at ServerResponse.json (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/response.js:278:15)
    at res.json (/home/marc/projects/OpenHaus/backend/routes/rest-handler.js:37:18)
    at /home/marc/projects/OpenHaus/backend/routes/router.api.endpoints.js:57:25
    at /home/marc/projects/OpenHaus/backend/components/endpoints/class.command.js:259:17
    at Timeout._onTimeout (/home/marc/projects/OpenHaus/backend/helper/timeout.js:47:13)
    at listOnTimeout (node:internal/timers:573:17)
    at process.processTimers (node:internal/timers:514:7) {
  code: 'ERR_HTTP_HEADERS_SENT'
}

Node.js v20.11.0
[nodemon] app crashed - waiting for file changes before starting...
``

[mStirner]

[2025.01.20 - 13:52.11.121][debug][http] 127.0.0.1 - [POST] /api/endpoints/678e46cd4d0aa72196102d87/commands/678e46cd4d0aa72196102d8b
TypeError: Cannot read properties of undefined (reading '0')
    at Command.<anonymous> (/home/marc/projects/OpenHaus/backend/plugins/e0f59a54-cb97-4199-8a1b-dfed5ea680ac/endpoint-handler.js:74:32)
    at Command.trigger (/home/marc/projects/OpenHaus/backend/components/endpoints/class.command.js:271:16)
    at /home/marc/projects/OpenHaus/backend/routes/router.api.endpoints.js:42:21
    at Layer.handle [as handle_request] (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/router/layer.js:95:5)
    at next (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/router/route.js:149:13)
    at Route.dispatch (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/router/route.js:119:3)
    at Layer.handle [as handle_request] (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/router/layer.js:95:5)
    at /home/marc/projects/OpenHaus/backend/node_modules/express/lib/router/index.js:284:15
    at param (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/router/index.js:365:14)
    at paramCallback (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/router/index.js:412:21)
Command timedout! Execution was not successful, worker function: [Function (anonymous)]
node:_http_outgoing:652
    throw new ERR_HTTP_HEADERS_SENT('set');
    ^

Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
    at ServerResponse.setHeader (node:_http_outgoing:652:11)
    at ServerResponse.header (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/response.js:794:10)
    at ServerResponse.send (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/response.js:174:12)
    at ServerResponse.json (/home/marc/projects/OpenHaus/backend/node_modules/express/lib/response.js:278:15)
    at res.json (/home/marc/projects/OpenHaus/backend/routes/rest-handler.js:37:18)
    at /home/marc/projects/OpenHaus/backend/routes/router.api.endpoints.js:57:25
    at /home/marc/projects/OpenHaus/backend/components/endpoints/class.command.js:259:17
    at Timeout._onTimeout (/home/marc/projects/OpenHaus/backend/helper/timeout.js:47:13)
    at listOnTimeout (node:internal/timers:573:17)
    at process.processTimers (node:internal/timers:514:7) {
  code: 'ERR_HTTP_HEADERS_SENT'
}

Node.js v20.11.0
[nodemon] app crashed - waiting for file changes before starting...

[OmkarBhosale06]

Hey @mStirner Can you connect for this issue ?

[mStirner]

@OmkarBhosale06 What do you mean?
Its a bug that i encountered while developing plugins.

res.json() or similar are called multiple times, which resulted in the error above.
Are you using OpenHaus?

[OmkarBhosale06]

I know I am saying can we connect for the project setup ?

…

On Sat, 25 Jan 2025 at 1:32 AM, Marc Stirner ***@***.***> wrote: @OmkarBhosale06 <https://github.com/OmkarBhosale06> What do you mean? Its a bug that i encountered while developing plugins. res.json() or similar are called multiple times, which resulted in the error above. — Reply to this email directly, view it on GitHub <#528 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AVE2H7KDVXUX64CGYTNFVRT2MKL7FAVCNFSM6AAAAABVQEVZEGVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDMMJTGI4DQNZZGU> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[OmkarBhosale06]

I want to contribute to this project On Sat, 25 Jan 2025 at 1:43 AM, omkar bhosale ***@***.***> wrote:

…

I know I am saying can we connect for the project setup ? On Sat, 25 Jan 2025 at 1:32 AM, Marc Stirner ***@***.***> wrote: > @OmkarBhosale06 <https://github.com/OmkarBhosale06> What do you mean? > Its a bug that i encountered while developing plugins. > > res.json() or similar are called multiple times, which resulted in the > error above. > > — > Reply to this email directly, view it on GitHub > <#528 (comment)>, > or unsubscribe > <https://github.com/notifications/unsubscribe-auth/AVE2H7KDVXUX64CGYTNFVRT2MKL7FAVCNFSM6AAAAABVQEVZEGVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDMMJTGI4DQNZZGU> > . > You are receiving this because you were mentioned.Message ID: > ***@***.***> >

[mStirner]

Feel free to fix the bug and create a pull request.
If you have any questions, ask me.

The first line, in the bug repeat ([2025.01.20 - 13:52.11.121][debug][http] 127.0.0.1 - [POST] /api/endpoints/678e46cd4d0aa72196102d87/commands/678e46cd4d0aa72196102d8) indicates, that the issue was provoked while telling the backend to execute some commands.

If i remember correctly, this was while the connector could not bridge the interface request, and the command execution timedout.

[mStirner]

Problem was worker functions that throw a error.
The error was not catched, and _timeout both triggered a http response.

The not catcher error from the "rest-handler.js", the _timeout in "router.api.endpoints.js"