Practical deployment guides
From Git to a running service: steps, checks and common mistakes.
Deploy a Node.js application from GitHub →
Start with a Node.js example that requires no external libraries. It returns JSON at /health and uses the PORT environment variable.
Connect a web application to MySQL →
The web service receives HTTP requests while MySQL stores records. They are separate services: the application connects using the MySQL protocol.
Host a Telegram bot as a worker →
A long-polling bot is a persistent background process and does not need a regular web page. A webhook bot can instead use a web service that receives HTTPS requests.