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How do i utilize odoo's websocket connection ?

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John Louie

Good day everyone, I'm currently building a custom module and utilizing its controllers to create an external api with custom logic for endpoints like /api/auth/login , /api/auth/whoami etc. Basically it's an attendance logging api for my custom module and is integrated to a mobile application. Currently, I was looking how to make it so that my endpoint for attendnace logging could send notifications to the mobile application. I was thinking of utilizing a websocket and odoo has it's own websocket but i'm having a hard time how to implement it. For reference, here is the endpoint where i want to integrate a notification and basically establish a websocket connection. 


 # ───────────────────────────────────────────────────────────────

    # ATTENDANCE  –  /api/attendance/log  (POST)

    # ───────────────────────────────────────────────────────────────

    @http.route(

        "/api/attendance/log", type="http", auth="public", csrf=False, methods=["POST"]

    )

    def log_attendance(self):

        user = self._current_user()

        if not user:

            return self._json({"error": "Unauthorized"}, 401)

        if user.share:

            return self._json({"error": "Access denied: internal users only"}, 403)


        try:

            data = json.loads(request.httprequest.data or "{}")

        except Exception:

            return self._json({"error": "Malformed JSON body"}, 400)


        enrollment_id = data.get("enrollment_id")

        log_type = data.get("log_type")

        if not enrollment_id or not log_type:

            return self._json({"error": "enrollment_id and log_type are required"}, 400)


        enrollment = request.env["sis.enrollment"].sudo().browse(int(enrollment_id))

        if not enrollment.exists():

            return self._json({"error": "Student does not exist"}, 404)


        try:

            log = (

                request.env["sis.student.attendance.log"]

                .sudo()

                .create(

                    {

                        "enrollment_id": enrollment.id,

                        "log_type": log_type,

                    }

                )

            )

        except ValidationError as ve:

            return self._json({"error": str(ve)}, 400)

        except Exception as e:

            _logger.exception("Failed to log attendance")

            return self._json({"error": str(e)}, 500)


        return self._json(

            {

                "status": "success",

                "log_id": log.id,

                "student_name": enrollment.full_name,

                "section_name": enrollment.section_id.display_name,

            },

            201,

        )

So basically it is an attendance logging of a student and i want to notify their parent in the mobile application once their son/daughter times in/out of their school

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STAFFINSIDE
Best Answer

Hi John,

Odoo’s “websocket” is really the longpolling bus that powers live chat, notifications, and Discuss. It’s not a raw websocket server you can hook into directly, but you can piggyback on it.

For your case (attendance → push update to mobile app), the usual pattern is:

  1. Use the bus.bus model

    request.env['bus.bus'].sudo().sendone( f"attendance_{enrollment_id}", { "student": enrollment.full_name, "section": enrollment.section_id.display_name, "log_type": log_type, } )

    This publishes a message on a custom channel.
  2. Subscribe from your client
    Your mobile app (or another backend service) connects to /longpolling/poll with the channel name (attendance_123). Whenever you sendone, the subscriber gets the payload.
  3. Alternative: external websocket
    If you really need true websockets, you’ll have to spin up a small websocket server (Node, FastAPI, etc.), and then trigger it from Odoo (via HTTP call, RabbitMQ, Redis, etc.) whenever a log is created.

So if you want to stay “inside” Odoo, stick to the bus/longpolling. If you want a native websocket to push directly to your mobile app, you’ll need a separate service alongside Odoo.

Hope that clears it up!

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