Tag: #spring-boot
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 15 posts
Modern Kotlin 2026 — Kotlin 2.1 / K2 Compiler / Compose Multiplatform / KMP 2.1 / Ktor 3 / Spring Boot Kotlin Deep Dive
Kotlin 2.1 (Nov 2024) made the K2 compiler the default, and 2.2 (Mar 2025) shipped context parameters. In the same window Compose Multiplatform 1.7 declared iOS stable, Ktor 3 added a WebAssembly target, and Spring Boot
2026-05-16 · 22 min read #kotlin#kotlin-2-1#k2-compiler#compose-multiplatform#kmpModern Java 2026 — Java 25 LTS / Spring Boot 3.5 / Quarkus / Virtual Threads / GraalVM 25 / Loom / Panama Deep Dive
A full state-of-the-ecosystem tour of Modern Java in 2026 — Java 25 LTS (Sept 2025) with virtual threads as the default, pattern matching finalized, Spring Boot 3.5 native integration, Quarkus 3.20, Micronaut 4, Helidon
2026-05-16 · 18 min read #java#jvm#java-25#spring-boot#quarkusKeycloak Integration Hands-On — Run It with Docker, Configure Realm/Client, Wire Up Spring Boot and Next.js (2025 Hands-On Guide)
Don't build authentication yourself — use Keycloak. This is a follow-along hands-on: run Keycloak 26 with Docker, configure Realm/Client/User/Role, poke the OIDC endpoints with curl, and integrate a Spring Boot Resource
2026-05-14 · 23 min read #keycloak#oidc#oauth2#authentication#authorizationModern Backend Frameworks 2025 — NestJS, Fastify, Hono, Elysia, Spring Boot, FastAPI, Go, Axum, tRPC, GraphQL, gRPC (S7 E2)
Which backend framework in 2026? This is a ranked tour through TypeScript (NestJS, Fastify, Hono, Elysia), JVM (Spring Boot, Micronaut), Python (FastAPI, Litestar), Go (Fiber, Echo, Chi), Rust (Axum, Actix), and API styl
2026-04-15 · 8 min read #backend#framework#nestjs#fastify#honoKotlin Complete Guide 2025: From Spring Boot Backend to Android, Multiplatform & Coroutines
Everything about Kotlin! Using Kotlin with Spring Boot, async processing with Coroutines, Ktor servers, Jetpack Compose UI, Kotlin Multiplatform (KMP), extension functions, null safety, sealed classes, DSL — the modern c
2026-03-24 · 21 min read #kotlin#spring-boot#android#coroutines#multiplatformSpring Boot 3.x Complete Guide 2025: Virtual Threads, GraalVM Native, Spring AI
Everything about Spring Boot 3.x! Java 21 Virtual Threads, GraalVM Native Image, Spring AI, Security 6, Testcontainers, Observability complete guide.
2026-03-23 · 19 min read #spring-boot#java#virtual-threads#graalvm#spring-aiToss Bank Data Engineer (Kafka & Streaming) Study Guide: Tech Stack, Interview Prep, and 6-Month Roadmap
Complete analysis of Toss Bank Real-Time Data team JD. Master Kafka Broker operations, Spring Boot Kafka Client, Active-Active replication, CDC with Debezium, Flink stream processing, and ClickHouse analytics — with a 6-
2026-03-21 · 29 min read #kafka#data-engineering#tossbank#streaming#flinkSpring Boot Embedded Tomcat Complete Guide: Configuration, Optimization, and Production Tuning
Complete guide to Spring Boot Embedded Tomcat — thread pool, connection timeout, SSL, HTTP/2, compression, access logs, and switching to Undertow/Jetty for production optimization.
2026-03-17 · 8 min read #spring-boot#tomcat#embedded-server#performance#sslSpring Boot Batch Complete Guide: Job, Step, Chunk Processing and Production Patterns
Complete guide to Spring Boot Batch — Job/Step/Chunk model, ItemReader/ItemProcessor/ItemWriter, partitioning, parallel processing, scheduler integration, and monitoring.
2026-03-17 · 12 min read #spring-boot#spring-batch#batch-processing#job#chunkSpring Boot Database Connection Complete Guide: JPA, HikariCP, Transactions, QueryDSL, Multi-DB
Complete guide to Spring Boot database integration — JPA/Hibernate configuration, HikariCP connection pool optimization, transaction management, QueryDSL, multi-datasource, R2DBC, and slow query logging.
2026-03-17 · 10 min read #spring-boot#jpa#hikaricp#querydsl#transactionSpring Boot Flyway Complete Guide: Database Migration Strategy and Production Patterns
Complete guide to database migration with Flyway in Spring Boot — versioning strategy, multi-environment configuration, test strategies, Java-based migrations, and production deployment patterns.
2026-03-17 · 11 min read #spring-boot#flyway#db-migration#jpa#postgresqlSpring Boot Configuration Files and Project Structure Complete Guide: Mastering application.yml
Complete guide to Spring Boot application.yml hierarchy, profile configuration, external configuration priority, multi-module project structure, and package organization best practices.
2026-03-17 · 9 min read #spring-boot#configuration#project-structure#application-yml#profileSpring Boot Authentication Practical Guide — Session, JWT, SecurityContext, Cookie-Based Auth Complete Mastery
Master how to implement session and JWT-based authentication in Spring Boot, from SecurityFilterChain and custom filters to SecurityContext and cookie configuration, with practical code examples.
2026-03-08 · 14 min read #architecture#authentication#spring-boot#jwt#cookieCircuit Breaker Pattern and Resilience4j Practical Implementation Guide: From Failure Isolation to Recovery
Covers the Circuit Breaker state machine principles, integrated configuration of Resilience4j CircuitBreaker, Retry, Bulkhead, and RateLimiter modules, practical implementation in Spring Boot 3, Grafana monitoring, and r
2026-03-06 · 22 min read #architecture#circuit-breaker#resilience4j#fault-tolerance#spring-bootClean Architecture + DDD Practical Guide: Domain-Centric Design with Spring Boot
A practical guide to applying Clean Architecture and Domain-Driven Design in Spring Boot projects. Covers layer separation, domain modeling, and the Ports/Adapters pattern with code implementations.
2026-03-03 · 9 min read #architecture#clean-architecture#domain-driven-design#spring-boot#2026-03