💎 Rails Stack
Ruby on Rails · PostgreSQL · Puma
R
Ruby on Rails
MVC Web Framework
- Controllers, Models, Views, Routing
- Active Record ORM & migrations
- Action Cable, Active Job, caching
↓
P
Puma
Rack Application Server
- Multi-threaded, cluster workers
- Rack middleware pipeline
- Reverse-proxy friendly (Nginx/Apache)
↓
PG
PostgreSQL
Relational Database
- ACID transactions & indexing
- JSONB, extensions, full-text search
- Read replicas & backup strategies
Request Flow: Client → Puma (Rack) → Rails (MVC/ORM) → PostgreSQL → Rails → Puma → Client