Create, update, and get an object from Bubble

Name: Create, update, and get an object from Bubble
Availability: InStock
Author: Harshil Agrawal

Create, update, and get an object from Bubble preview

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Important notice

This workflow is provided as-is. Please review and test before using in production.

Overview

This workflow allows you to create, update, and get an object from Bubble.

workflow-screenshot

Bubble node: This node will create a new object of the type Doc in Bubble. If you want to create an object with a different type, use that type instead.

Bubble1 node: This node will update the object that we created using the previous node.

Bubble2 node: This node will retrieve the information of the object that we created earlier.

Harshil Agrawal

186 workflows

Nodes

n8n-nodes-base.bubble

Complexity

beginner

Published 15 Apr 2021

Likes 0

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Install path: /data/workflows/1041/1041.json

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Notify on menu orders via ntfy and Home Assistant TTS with daily BAC tracking

# Notify on menu orders via ntfy and Home Assistant TTS with daily BAC tracking Receive instant push notifications on your phone and voice announcements on your Google Home every time someone orders from your intranet menu — with cumulative BAC tracking per person. > **Full documentation & step-by-step setup guides:** > [📖 Notion Documentation](https://paoloronco.notion.site/Documentation-Menu-Order-Push-Notifications-Home-Assistant-TTS-BAC-32ff0ba27c328075a886d89ebfbf5ce5) > [💻 GitHub Repository](https://github.com/paoloronco/n8n-templates/tree/main/free-templates/5%20v3%20online_menu-push_notifications-homeassistant-TTS-BACcalculation) --- ## What This Workflow Does Every time a customer submits an order from your intranet menu website, this workflow: 1. Receives the order via **Webhook** 2. Logs it to an **n8n DataTable** and reads all orders for that person today 3. Calculates the cumulative **BAC** (Blood Alcohol Content) using the Widmark formula 4. Sends a **push notification** via ntfy (with order history + BAC level) 5. Triggers a **Home Assistant script** → voice announcement on Google Home **No cloud TTS fees. No external AI services. Fully self-hosted.** --- ## Flow ``` Webhook → Prepare Order → DataTable (INSERT) → Read Today's Orders → BAC Calculator → ntfy Push Notification → Home Assistant TTS ``` --- ## Example Output **Push notification (ntfy app):** ``` 🛎 Order from Mario Mario: 1x Pizza, 2x Beer 33cl 🕐 12:30 📋 Ordered before: - 1x Prosecco 🕐 11:45 🍸 BAC ~0.54 g/L 🔴 ``` **Google Home voice announcement:** ``` Mario has ordered Pizza ``` --- ## Prerequisites Before importing this workflow, you need: - A running **n8n** instance (self-hosted or cloud) reachable from the internet - **Home Assistant** on your local network (e.g. `homeassistant.local:8123`) - At least one **Google Home** (or Chromecast-capable) device added to HA via the Google Cast integration - **ntfy** deployed via Docker (self-hosted push notification server) - A public HTTPS URL for ntfy — recommended via **Cloudflare Tunnel** (no open ports needed) - An Android or iOS device with the **ntfy app** installed --- ## Credentials Required | Credential | Used For | | ------------------------------------------------------ | ---------------------------------------- | | **Home Assistant** | Calling the `annuncia_ordine` TTS script | | **Header Auth** (`Authorization: Bearer <ntfy_token>`) | Sending authenticated requests to ntfy | --- ## n8n DataTable Schema Create a DataTable in **n8n → Data → Tables** with these columns: | Column | Type | Description | | -------------- | ------ | ------------------------------------------------------ | | `item` | Text | Full order string (e.g. "2x Negroni, 1x Messina 33cl") | | `person` | Text | Normalised person name | | `alcol_grammi` | Number | Total grams of alcohol for this order | | `data` | Text | ISO date (YYYY-MM-DD) | | `orario` | Text | Time string from the order | Copy the DataTable ID and paste it into the DataTable nodes inside the workflow. --- ## Webhook Payload Your menu website must POST this JSON to the Webhook Production URL: ```json { "name": "Mario", "time": "26/03/2026, 12:30:00", "order": [ { "section": "Food", "name": "Pizza", "details": "", "quantity": 1 }, { "section": "Drinks", "name": "Beer", "details": "33cl", "quantity": 2 } ], "total": 3 } ``` --- ## Setup Steps ### 1. Deploy ntfy (self-hosted push notifications) Add ntfy to your `docker-compose.yml`: ```yaml ntfy: image: binwiederhier/ntfy command: serve volumes: - ./ntfy/config:/etc/ntfy - ./ntfy/data:/var/lib/ntfy ports: - "8095:80" ``` In `server.yml`, set `auth-default-access: deny-all`. Then create an admin user and generate a token: ```bash docker exec -e NTFY_PASSWORD="your_password" ntfy ntfy user add --role=admin admin docker exec ntfy ntfy token add admin ``` ### 2. Expose ntfy over HTTPS (Cloudflare Tunnel) Add an ingress rule to your Cloudflare Tunnel config: ```yaml - hostname: ntfy.YOUR_DOMAIN.com service: http://localhost:8095 ``` ### 3. Configure Home Assistant TTS In HA, go to **Settings → Automations & Scenes → Scripts → Add script → Edit in YAML** and paste: ```yaml alias: annuncia_ordine sequence: - action: tts.speak target: entity_id: tts.google_translate_en_com data: media_player_entity_id: media_player.YOUR_GOOGLE_HOME_ENTITY message: "{{ message }}" language: it mode: single ``` > Replace `media_player.YOUR_GOOGLE_HOME_ENTITY` with your actual entity ID. Then go to your HA profile → **Security → Long-lived access tokens** → create and copy a token. ### 4. Import and configure the workflow 1. Import the workflow JSON into n8n 2. Create the **DataTable** (columns listed above) — copy its ID 3. Create the **Header Auth** credential for ntfy: - Header Name: `Authorization` - Header Value: `Bearer YOUR_NTFY_TOKEN` 4. Create the **Home Assistant** credential: - Host: `http://homeassistant.local:8123` - Access Token: your HA long-lived token 5. In the `ntfy notification` node, replace `YOUR_TOPIC` in the URL 6. In the `Home Assistant TTS` node, set the `message` attribute expression: ``` ={{ $('Webhook').item.json.body.nome }} has ordered {{ $('Webhook').item.json.body.ordine[0].nome }} ``` 7. Activate the workflow and copy the **Webhook Production URL** ### 5. Configure your menu website Set the webhook URL in your menu site config: ```js // menu-data.js "orderWebhook": "https://YOUR_N8N_DOMAIN/webhook/menu" ``` --- ## BAC Calculation (Widmark Formula) ``` BAC [g/L] = total_alcohol_grams_today / (70 × 0.68) ``` Assumes ~70 kg body weight. Italian legal driving limit: **0.5 g/L** | Emoji | Level | BAC | | ----- | ---------- | ------------- | | ⬜ | None | 0 g/L | | 🟢 | Low | < 0.2 g/L | | 🟡 | Warning | 0.2 – 0.5 g/L | | 🔴 | Over limit | > 0.5 g/L | BAC is **cumulative per day per person** and resets automatically the next day. --- ## Customization | What | How | | ----------------------------------------- | ------------------------------------------------------------ | | Change the TTS message | Edit the `message` expression in the HA TTS node | | Announce all ordered items | Use `$json.body.ordine.map(i => i.quantita + ' ' + i.nome).join(', ')` | | Change TTS language | Edit `language` in the `annuncia_ordine` HA script | | Announce on multiple Google Home devices | Add multiple `media_player_entity_id` entries to the HA script | | Disable TTS (keep only push notification) | Remove or deactivate the `Home Assistant TTS` node | --- ## Security | Layer | Mechanism | | -------------------- | ---------------------------------------------------- | | Transport (ntfy) | HTTPS via Cloudflare Tunnel | | ntfy access | `auth-default-access: deny-all` — no anonymous reads | | n8n → ntfy | Dedicated Bearer token (revokable, no expiry) | | n8n → Home Assistant | Long-lived access token | | Mobile app | Username/password on the ntfy server | --- ## Documentation & Source | | | | ------------------------ | ------------------------------------------------------------ | | 📖 **Full documentation** | [Notion — step-by-step setup guides](https://paoloronco.notion.site/Documentation-Menu-Order-Push-Notifications-Home-Assistant-TTS-BAC-32ff0ba27c328075a886d89ebfbf5ce5) | | 💻 **GitHub Repository** | [paoloronco/n8n-templates](https://github.com/paoloronco/n8n-templates/tree/main/free-templates/5%20v3%20online_menu-push_notifications-homeassistant-TTS-BACcalculation) | ## Related Resources - [ntfy.sh documentation](https://docs.ntfy.sh) - [Home Assistant TTS documentation](https://www.home-assistant.io/integrations/tts/) - [Home Assistant Scripts](https://www.home-assistant.io/integrations/script/) - [Google Cast integration](https://www.home-assistant.io/integrations/cast/) - [n8n Home Assistant node](https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-base.homeassistant/)

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Create, update, and get an object from Bubble

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Overview