Power Off Notifier

Get notified about scheduled DEDDIE power outages in your area — without refreshing a clunky government site.

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DEDDIE (the Greek electricity distribution operator) publishes planned power outages on siteapps.deddie.gr, but there's no way to subscribe to your department. This project scrapes that site, stores the announcements, and pushes them to a mobile app so you get notified the moment a new outage is posted for your area.

How it works

[DEDDIE site]  →  scraper (cron)  →  [PostgreSQL]  →  FastAPI  →  Flutter app

1. Scraper (WebScrapping/) — a Python script, run on a cron, that scrapes new outage announcements and stores them in Postgres, de-duplicated per department.
2. API (fastAPI/) — a FastAPI service exposing the announcements per department.
3. App (power_off_notifier/) — a Flutter app that polls the API and notifies the user about outages in their selected department.

Tech stack

• Mobile — Flutter (Dart)
• Backend — FastAPI (Python)
• Database — PostgreSQL
• Scraping — Python, scheduled via cron
• Deployment — systemd service (fastapi.service)

API Reference

Get all items

GET /

Get latest announcements

GET /latest

Parameter	Type	Description
department	string	Required. Name of department
id	integer	Required. ID of the last announcement you have

Returns the announcements newer than id for the given department.

Get announcements count

GET /count

Parameter	Type	Description
department	string	Name of department

Returns the number of announcements stored for the department.

Get announcements by department

GET /{department}

Parameter	Type	Description
department	string	Required. Name of department

Returns all announcements for the selected department.

Deployment

Provision a server, then:

1. Install PostgreSQL

sudo apt install postgresql postgresql-contrib
sudo -u postgres psql
\password          # set a password
\q

Create a database and a table named deddhe.

2. Run the API as a service

Copy fastapi.service to /etc/systemd/system, edit WorkingDirectory, User, and Group, then:

sudo systemctl daemon-reload
sudo systemctl enable --now fastapi.service
sudo systemctl status fastapi.service

3. Schedule the scraper — add the WebScrapping/ script to a cron job and you're ready to go.

Author

• @nicknterm

License

Released under the Apache License 2.0.