Spring Boot (Kotlin) Framework Guide

Applies to: Spring Boot 3.x, Kotlin 1.9+, REST APIs, Microservices Use with: .claude/skills/kotlin-guide/SKILL.md for base Kotlin patterns

When to Use

• Enterprise Applications: Proven enterprise-grade framework with vast ecosystem
• Microservices: Excellent with Spring Cloud for distributed systems
• Existing Spring Ecosystem: Leverage Spring libraries, security, data, cloud
• Complex Business Logic: Rich feature set for complex domains
• Team Familiarity: Teams with Java/Spring background transitioning to Kotlin

When NOT to Use

• Lightweight Services: Consider Ktor for simpler, minimal-dependency services
• Mobile Backend: Ktor is more lightweight for mobile-only backends
• Minimal Footprint: Spring Boot has a larger memory and startup footprint