One-Click Databases: Postgres, MySQL, Redis, MongoDB

Railway offers managed databases as one-click templates — provisioning a real, production-capable database without manually installing or configuring database software yourself.

"New" → choose a database template provisions it in seconds. Postgres, MySQL, Redis, and MongoDB are all available as one-click templates — Railway handles installation, initial configuration, and gives you working connection details immediately, as its own Service within your Project.

Connection variables are provided automatically. A freshly provisioned Postgres service comes with DATABASE_URL (and individual PGHOST, PGPORT, PGUSER, PGPASSWORD, PGDATABASE variables) already populated — reference these from your application service (from the Environment Variables course) rather than assembling a connection string by hand.

Railway manages the underlying infrastructure, not your schema or data. Provisioning gives you a running database engine — you're still responsible for your actual schema design, migrations, and data model, the same as you would be with any database, managed or self-hosted.

A database is just another Service, with its own resource usage and billing. It shows up in your Project alongside your application, with its own logs and metrics — conceptually no different from any other Service, just running a database engine instead of your application code.

Choosing which database engine fits your project is a real decision, not just a default. Postgres for relational data with real structure and relationships; Redis for caching and fast key-value lookups; MongoDB for flexible, document-shaped data — picking based on your actual data model matters more than picking whichever is fastest to provision.

Why this matters for you

Managed databases remove a genuine category of operational work (patching, backups infrastructure, basic tuning) that used to require real database administration skill just to get started — this course is about using that well, not assuming zero database knowledge is needed at all.

▶️ Before the next lesson

Provision a Postgres database in your Railway project (one-click template) if you don't already have one from the Welcome course, and open its Variables tab to see what Railway populated automatically.