UniFi stock alerts in Home Assistant.

Add an automation with a webhook trigger. The webhook_id becomes part of the URL, so treat it like a password: long and random. NotiFi posts from the internet, so local_only must be off, and your Home Assistant instance needs to be reachable externally (Nabu Casa or your own reverse proxy both work).

automation:
  - alias: "UniFi restock alert"
    trigger:
      - platform: webhook
        webhook_id: notifi-restock   # pick any long random string
        allowed_methods: [POST]
        local_only: false            # NotiFi posts from the internet
    condition:
      - condition: template
        value_template: "{{ trigger.json.event == 'in_stock' }}"
    action:
      - service: notify.mobile_app_your_phone
        data:
          title: "UniFi restock"
          message: >-
            {{ trigger.json.product.title }} is back in stock
            ({{ '%.2f' | format(trigger.json.price.amount / 100) }}
            {{ trigger.json.price.currency }})
      # Anything else you like:
      # - service: light.turn_on
      #   target: { entity_id: light.office }
      #   data: { flash: long }

In NotiFi, open Settings, then Webhook, and paste your webhook URL:

https://YOUR-INSTANCE/api/webhook/notifi-restock

Use the Test button to fire a sample delivery and confirm the automation runs. Every alert for the products you watch now POSTs the full payload (product, variant, price) to Home Assistant the moment it fires; the webhook docs show the exact JSON shape and the optional HMAC signature if you want to verify sender authenticity.

Webhooks fire for the products on your watchlist. Sold-out gateways and WiFi 7 APs are the classic picks; the rarity leaderboard shows which products are worth automating over.