Beyor-Dato Portfolio 218 - Crystal REST API

Final portfolio: Crystal language REST API with Kemal framework. Ruby syntax with C performance for blazingly fast web applications.

Features

• Crystal: Fast as C, slick as Ruby
• Kemal: Lightweight web framework
• Type Safe: Compile-time type checking
• Performance: Compiled to native code
• Concurrency: Lightweight fibers

API

GET /health
GET /api/developer
GET /api/tools
GET /api/tools/{id}
POST /api/tools

Run

# Build
crystal build src/app.cr

# Run
./app

# Test
curl http://127.0.0.1:8000/health

Docker

docker-compose up -d
curl http://localhost:8000/health

Crystal Philosophy

• Performance: Fast as C
• Ruby Syntax: Easy to write
• Type Safety: Compile-time checking
• Simplicity: Minimal language
• Productivity: Rapid development

Resources

• Crystal: https://crystal-lang.org/
• Kemal: https://kemalcr.com/
• Docs: https://crystal-lang.org/reference/

Repository

beyor-dato-portfolio-218

Author

Beyor-Dato - davit.gamtenadze320@eab.tsu.edu.ge

Created: June 2026 | Crystal: Latest | License: MIT