Croniq

A modern, open-source job scheduler built with Elixir and Phoenix

✨ Features

• HTTP Task Scheduling: Trigger any API endpoint on a schedule
• Full Cron Syntax: Supports standard cron expressions with seconds precision
• Retry Mechanism: Automatic retries with exponential backoff
• Web UI & REST API: Manage jobs through both interfaces
• Lightweight: Minimal resource usage

Live demo: croniq.ilaletdinov.ru

The Croniq web interface allows you to manage scheduled jobs through a modern dashboard:

Task List View all jobs, their statuses, and schedules

Create Task Convenient form for creating a new job

Request Log Execution history and HTTP request logs

🚀 Quick Start

Requirements:

• Elixir 1.14+
• PostgreSQL 12+
• Node.js 16+ (for assets)

Installation:

git clone https://github.com/yourusername/croniq.git
cd croniq
mix deps.get
cd assets && npm install && cd ..
mix ecto.setup
mix phx.server

Visit http://localhost:4000 in your browser.

📚 Usage

API Example: Create a New Job

curl -X POST http://localhost:4000/api/jobs \
  -H "Content-Type: application/json" \
  -d '{
    "name": "daily-backup",
    "schedule": "0 3 * * *",
    "url": "https://api.example.com/backup",
    "method": "POST",
    "headers": {
      "Authorization": "Bearer your-token"
    },
    "body": {
      "database": "production"
    }
  }'

List All Jobs

curl http://localhost:4000/api/jobs

Web UI

• View, create, edit, and delete scheduled tasks via the web dashboard.
• Real-time status and logs for each job.

⚙️ Configuration

• All configuration is managed via config/*.exs.
• Database settings: config/dev.exs, config/prod.exs
• Environment variables can be used for secrets and production settings.

🏗️ Architecture Overview

• Elixir + Phoenix: Robust, concurrent backend.
• Quantum: Used for cron-like scheduling.
• Ecto: Task persistence in PostgreSQL.
• HTTPoison: Executes HTTP requests for tasks.

How it works:

• Each task is stored in the database and scheduled via Quantum.
• When a task is due, Croniq sends an HTTP request as specified.
• Retries and status updates are handled automatically.
• Both REST API and Web UI are available for management.

🤝 Contributing

We welcome contributions! To get started:

1. Fork the repository
2. Create a new branch (git checkout -b feature/my-feature)
3. Make your changes
4. Commit and push (git commit -am 'Add new feature' && git push origin feature/my-feature)
5. Open a Pull Request

🛡️ Security

• All user input is validated and sanitized.
• Built-in CSRF protection and secure session management.
• Please report vulnerabilities via GitHub Issues.

🗺️ Roadmap

• [ ] Task history and logs
• [ ] Advanced authentication (OAuth, SSO)
• [ ] Multi-tenant support
• [ ] More integrations (Slack, Email, etc.)
• [ ] Retry Mechanism

❓ FAQ

Q: Can I use custom HTTP headers?
A: Yes, just specify them in the headers field when creating a job.

📄 License

This project is licensed under the MIT License. See the LICENSE file for details.

🔗 Links

• Elixir
• Phoenix
• Quantum
• LiveView

Made with ❤️ by the Croniq community