Learn MICRONAUT with Real Code Examples

Install JDK 11+

Install Micronaut CLI via SDKMAN or homebrew

Create new project: `mn create-app my-app`

Open project in IDE (IntelliJ, VS Code)

Run: `./gradlew run` or `mn run`

Install JDK 11+

Install Micronaut CLI

Set up Gradle or Maven

Open project in IDE

Verify run with `mn run`

application.yml - configuration

build.gradle / pom.xml - build scripts

src/main/java - source code

src/test/java - tests

Dockerfile - containerization

mn create-app my-app -> generate new project

mn run -> run application

./gradlew build -> build project

mn test -> run tests

docker build/run -> containerize application

Supports UTF-8 out of the box

Locale-specific content via configuration

Integrates with third-party i18n libraries

Used globally for multilingual apps

Custom translation pipelines possible

Framework-agnostic

Supports CORS and HTTP standards

Accessible via REST clients

Works on all JVM-supported platforms

Security and middleware configurable

Not handled - backend framework

Serve static files if needed

Return JSON/XML API responses

Integrate with frontend frameworks

Optional template rendering via Micronaut Views

Stateless by default

Session support via JWT or cookies

Persistent state in DB or cache

Reactive streams for ephemeral state

DI-managed beans maintain scoped state

Handle JSON, XML, and other payloads

Integrate with relational and NoSQL databases

Reactive and non-blocking database access

Validate input with Micronaut Validation

Logging and monitoring of data flow