juul_paa_nesoya/de_som_forsvinner_i_taaken/webpage

Email Capture Flask App

A minimal Flask service that accepts an email from a form POST and stores it in a SQLite database.

Endpoints

• POST /subscribe — Accepts email via HTML form or JSON and stores it.
• GET /stats — Returns a count of stored subscribers.
• GET /health — Basic health check.

Quick start

1. Create and activate a virtualenv (recommended):

python -m venv .venv
source .venv/bin/activate  # Windows: .venv\Scripts\activate

2. Install dependencies:

pip install -r requirements.txt

3. Run the app:

python app.py
# or
FLASK_DEBUG=1 python app.py

The server listens on http://localhost:5000.

Configure

• DATABASE_PATH (optional): path to the SQLite database file. Default is emails.db in the project root.
• PORT (optional): server port (default 5000).

Posting from your HTML form

Your existing form should point to /subscribe and include an email field:

<form action="http://localhost:5000/subscribe" method="post">
  <input type="email" name="email" placeholder="you@example.com" required />
  <button type="submit">Subscribe</button>
</form>

If your web page is served from a different origin (domain/port), you may need to enable CORS on this service (e.g., via a proxy or using flask-cors).

cURL examples

• Form POST:

curl -X POST -d "email=test@example.com" http://localhost:5000/subscribe

• JSON POST:

curl -X POST -H "Content-Type: application/json" \
     -d '{"email":"test@example.com"}' \
     http://localhost:5000/subscribe

• Check stats:

curl http://localhost:5000/stats

Notes

• Emails are normalized to lowercase and checked with a simple regex. For strict validation, consider the email-validator package.
• Duplicate submissions return HTTP 409 with status duplicate.
• SQLite is suitable for lightweight usage; for higher traffic, consider a server database (PostgreSQL, MySQL) with a proper connection pool.