Tag: #spring-boot

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• Modern Kotlin 2026 — Kotlin 2.1 / K2 Compiler / Compose Multiplatform / KMP 2.1 / Ktor 3 / Spring Boot Kotlin Deep Dive ♪ Listenable

  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#kmp

• Modern 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#quarkus

• Keycloak Integration Hands-On — Run It with Docker, Configure Realm/Client, Wire Up Spring Boot and Next.js (2025 Hands-On Guide) ♪ Listenable

  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#authorization

• Modern 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#hono

• Kotlin Complete Guide 2025: From Spring Boot Backend to Android, Multiplatform & Coroutines ♪ Listenable

  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#multiplatform

• Spring 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-ai

• Toss Bank Data Engineer (Kafka & Streaming) Study Guide: Tech Stack, Interview Prep, and 6-Month Roadmap ♪ Listenable

  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#flink

• Spring 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#ssl

• Spring 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#chunk

• Spring 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#transaction

• Spring 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#postgresql

• Spring 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#profile

• Spring 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#cookie

• Circuit Breaker Pattern and Resilience4j Practical Implementation Guide: From Failure Isolation to Recovery ♪ Listenable

  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-boot

• Clean 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