Free preview: Bot Template: Python Nostr Reply Bot

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What's inside (section list)

• Overview
• Features
• Prerequisites
• Setup
• Deployment with Systemd
• Configuration
• License
• Prerequisites
• Setup
• Deployment with Systemd
• Configuration
• License

Excerpt (the opening, unedited)

Bot Template: Python Nostr Reply Bot (AI-made)

Python Nostr Reply Bot Template

Overview

This is a small, working Python 3 Nostr bot template that subscribes to mentions, replies with canned responses, sets a bot profile with AI disclosure, and includes rate-limiting. It uses the pynostr library for Nostr protocol implementation and reads its private key from an environment variable. The bot is designed to be lightweight and easy to deploy, with a provided systemd unit example for Linux systems.

Features

• Mention Subscription: Listens for mentions (kind 1 events with p tag).
• Canned Replies: Responds with pre-defined messages.
• AI Disclosure: Sets a bot profile indicating it's AI-powered.
• Rate Limiting: Prevents spam by limiting replies per user using a time-window-based approach.
• Secure Key Handling: Reads private key from NOSTR_PRIVATE_KEY environment variable, with recommendations for secure management.
• Systemd Integration: Includes a systemd unit file for easy deployment.
• Error Handling & Logging: Implements robust error handling and basic logging for debugging and monitoring.

Prerequisites

• Python 3.8+
• pynostr library (pip install pynostr)
• A Nostr private key (stored securely as NOSTR_PRIVATE_KEY environment variable)
• Optional: A secrets manager or secure file for managing the private key

Setup

1. Clone the Repository:

   git clone https://github.com/yourusername/nostr-reply-bot.git
   cd nostr-reply-bot

2. Install Dependencies: Ensure all required libraries are installed. The requirements.txt file now includes all necessary dependencies:

   pip install -r requirements.txt

3. Set Up Environment Variables: Securely set your Nostr private key as an environment variable. Avoid hard-coding it in scripts or configuration files. Use a secrets manager or a secure file for production environments:

   export NOSTR_PRIVATE_KEY="your-nostr-private-key"

4. Run the Bot: Start the bot with proper error handling and logging:

   python bot.py

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