select-notifier 0.2.0

Lightweight notification package(email & Rocket.Chat, Telegram) for Select services

Name

Select-Notifier: Lightweight Notification Module (Email + Rocket.Chat + Telegram)

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Description

Select-Notifier is a small, production-friendly Python package that provides a unified interface for sending notifications.
It currently supports:

• EmailNotifier — SMTP with robust input validation, STARTTLS/SSL support, retries & backoff (subject required)
• RocketNotifier — Rocket.Chat integration via REST API (chat.postMessage) with retries & backoff (subject optional)
• TelegramNotifier — Telegram Bot API integration using python-telegram-bot with retries & backoff (subject optional)

The package is designed to be embedded inside Select services and pipelines where a simple, reliable notifier is needed.

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Badges

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You can use Shields.io to add badges. Many services also have instructions for adding a badge.

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Visuals

Depending on what you are making, it can be a good idea to include screenshots or even a video (you'll frequently see GIFs rather than actual videos).
Tools like ttygif can help, but check out Asciinema for a more sophisticated method.

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Features

✅ Email (SMTP):
    - STARTTLS (587) and SMTPS/SSL (465)
    - Retries with exponential backoff
    - Validation for sender/recipient, subject/body (subject is required)
    - Password normalization (removes whitespace, converts non-ASCII digits)

✅ Rocket.Chat (REST API):
    - Auth with userId + authToken
    - Send to channels (#channel) or direct messages (@user)
    - Retries with exponential backoff
    - Subject is optional

✅ Telegram (Bot API via python-telegram-bot):
    - Bot token + chat_id
    - Send to private chats (after user has started the bot) or groups (bot must be added)
    - Retries with exponential backoff
    - Subject is optional
    - Proxy support for restricted regions

✅ Minimal Dependencies:
    - Email: standard library only
    - Rocket: [`httpx`](https://www.python-httpx.org/)
    - Telegram: [`python-telegram-bot`](https://docs.python-telegram-bot.org/)

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Repository Structure

select-notifier/
├── src/
│   └── select_notifier/
│       ├── __init__.py
│       ├── __version__.py
│       ├── base.py                 # Core types & protocols
│       └── services/
│           ├── email.py            # EmailNotifier
│           ├── rocket.py           # RocketNotifier
│           └── telegram.py         # TelegramNotifier
├── tests/
│   ├── test_base.py
│   ├── test_email_notifier.py
│   ├── test_rocket_notifier.py
│   └── test_telegram_notifier.py
├── version_and_changelog.py        # Version bump + changelog generator
├── versioning_strategy.md          # Versioning policy
├── pyproject.toml
├── requirements.txt
├── requirements-dev.txt
└── README.md

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Installation

1. Clone the repository:

git clone http://repo.afe.ir/afeai/select-notifier.git
cd select-notifier

2. Create virtual environment:

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

3. Install requirements:

pip install -r requirements.txt

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Usage

EmailNotifier (STARTTLS, port 587)

from select_notifier.services.email import EmailNotifier

notifier = EmailNotifier.create(
    sender="[e-mail]",
    password="your-app-password",
    server="smtp.example.com",
    port=587,
    use_tls=True,
    use_ssl=False,
    timeout=30.0,
    retries=2,
    backoff=1.5,
)

notifier.send_text(
    subject="Hello from Select-Notifier",   # subject REQUIRED for email
    body="This is a test message.",
    to=["[e-mail]"],
)

EmailNotifier (SMTPS, port 465)

from select_notifier.services.email import EmailNotifier

notifier = EmailNotifier.create(
    sender="[e-mail]",
    password="your-app-password",   # use an app password, not your login password
    server="smtp.example.com",
    port=465,
    use_tls=False,                  # no STARTTLS on SMTPS
    use_ssl=True,                   # implicit SSL (SMTPS)
    timeout=30.0,
    retries=2,
    backoff=1.5,
)

notifier.send_text(
    subject="Hello from Select-Notifier",
    body="This is a test message over SMTPS (465).",
    to=["[e-mail]"],
)

RocketNotifier (REST API)

from select_notifier.services.rocket import RocketNotifier

notifier = RocketNotifier.create(
    domain="https://chat.company.com",
    user_id="YOUR_USER_ID",
    auth_token="YOUR_AUTH_TOKEN",
    retries=2,
    backoff=1.5,
)

notifier.send_text(
    subject="Deploy",   # subject OPTIONAL
    body="Production deployment finished",
    to=["#ops"],   # or ["@username"]
)

TelegramNotifier (subject optional, with proxy example)

from select_notifier.services.telegram import TelegramNotifier
from select_notifier.base import normalize_message

notifier = TelegramNotifier.create(
    bot_token="YOUR_BOT_TOKEN",
    api_base="https://api.telegram.org",
    proxy_url="http://127.0.0.1:10809",   # optional
    retries=1,
    backoff=1.5,
)
# user must have started the bot, or bot must be added to group
msg = normalize_message(subject="", body="Hello via Telegram ✅", to=["123456789"])
notifier.send(msg)

Notes & Limitations

• Gmail: Use an App Password (no spaces).
• Rocket.Chat: Requires a valid userId and authToken. User must have permission to post in the target channel/DM.
• Telegram:
  • To DM, the user must have clicked Start on the bot at least once.
  • To send in a group, add the bot to the group (make admin if you want it to manage messages).
  • chat_id can be retrieved using getUpdates or helper bots (e.g., @userinfobot).
• Proxy: If your region blocks Telegram or other services, provide proxy_url (http/socks) when creating the notifier.

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License

Private Repository:
This codebase is private and currently not distributed under any open-source license.
Contact the project owner for more information or collaboration requests.

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Contact

For questions, ideas, or collaboration, please reach out to the project maintainer.

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Project Status

Under Development:
This project is still evolving. While core functionalities are operational, enhancements and stability improvements are ongoing.