# backend
4 posts
Spring Boot 4 + MongoDB — Aggregations, Schema Evolution & Repository Patterns
Build a Spring Boot 4 application with MongoDB — document modeling in Kotlin, Spring Data repositories, MongoTemplate queries, aggregation pipelines, and schema evolution strategies.
Spring Boot 2 min
Spring Boot 4 Starter — Project Setup, Structure & First API
Set up a Spring Boot 4 project from scratch — project structure, REST controller, configuration, profiles, and your first working API endpoint.
Spring Boot 1 min
API Security Checklist — OWASP Top 10 for Backend Developers
A practical API security checklist covering authentication, authorization, input validation, rate limiting, and the OWASP API Security Top 10 risks.
Security 4 min
Kotlin + Ktor — Building a REST API Without Spring
Build a REST API with Ktor 3 and Kotlin — routing, serialization, authentication, database access, and testing. A lightweight alternative to Spring Boot.
Kotlin 2 min