Micronaut Guides: graalvm

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Getting Started

Creating your first Micronaut application

Learn how to create a Hello World Micronaut application with a controller and a functional test.

Core Basics

@Configuration and @ConfigurationBuilder

Learn how to use @Configuration and @ConfigurationBuilder annotations to configure declared properties.

HTTP Server

Configure CORS in a Micronaut application

Learn how to configure Cross-Origin Resource Sharing (CORS) in a Micronaut application.

Exposing a Health endpoint for your Micronaut application

Learn how to expose a health endpoint for your Micronaut application.

HTTP Client

Micronaut HTTP Client

Learn how to use Micronaut low-level HTTP Client. Simplify your code with the declarative HTTP client.

Testing

Using Micronaut Test REST-Assured in a Micronaut application

Learn how to use Micronaut Test REST-Assured to test the REST API of your Micronaut application.

Data Access

Access an Oracle Autonomous Database

Learn how to access an Oracle Autonomous Database using the Micronaut framework.

Access a database with MyBatis

Learn how to access a database with MyBatis using Micronaut Framework.

Data JDBC

Micronaut Data and Java Records

Learn how to leverage Java records for immutable configuration, Micronaut Data Mapped Entities and Projection DTOs

Access a database with Micronaut Data JDBC

Learn how to access a database with Micronaut JDBC repositories.

Data JPA

Access a database with Micronaut Data and Hibernate Reactive

Learn how to use Micronaut Data and Hibernate Reactive.

Data R2DBC

Access a database with Micronaut Data R2DBC

Learn how to access a database with Micronaut R2DBC repositories.

GraalVM

Generate reflection metadata for GraalVM Native Image

In this guide, you will see several methods to provide the metadata required for reflection to be used in a Micronaut application distributed as a GraalVM Native executable.

Serverless

Deploy a Micronaut HTTP API Gateway Function (Serverless) application to Oracle Cloud

Learn how to deploy a Micronaut HTTP API Gateway Function (Serverless) application to Oracle Cloud.

Deploy a Micronaut Function (Serverless) application to Oracle Cloud

Learn how to deploy a Micronaut Function (Serverless) application to Oracle Cloud.

AWS Lambda

Micronaut RequestStreamHandler as a GraalVM Native Executable to AWS Lambda

Learn how to distribute a Micronaut function with an AWS Lambda RequestStreamHandler built as a GraalVM native executable to an AWS Lambda custom runtime.

Deploy a Micronaut application as a GraalVM Native Executable to AWS Lambda

Learn how to distribute a Micronaut application built as a GraalVM native executable to an AWS Lambda custom runtime

Deploy a Micronaut function as a GraalVM Native Executable to AWS Lambda

Learn how to distribute a Micronaut function built as a GraalVM native executable to an AWS Lambda custom runtime

Kubernetes

Service discovery and distributed configuration with Google Kubernetes Engine (GKE)

Service discovery and distributed configuration in a Micronaut application with Google Kubernetes Engine (GKE)

Kubernetes service discovery and distributed configuration

How to use Kubernetes service discovery and distributed configuration in a Micronaut application

Service discovery and distributed configuration with Amazon Elastic Kubernetes Service (EKS)

Service discovery and distributed configuration in a Micronaut application with Amazon Elastic Kubernetes Service (EKS)

Service discovery and distributed configuration with Oracle Cloud Container Engine for Kubernetes (OKE)

Service discovery and distributed configuration in a Micronaut application with Oracle Cloud Container Engine for Kubernetes (OKE)

Authorization Code

Secure a Micronaut application with an OCI Identity Domain using cookie authentication

Learn how to create a Micronaut application and secure it with an OCI (Oracle Cloud Infrastructure) Identity Domain.

Secure a Micronaut application with an OCI Identity Domain using idtoken authentication

Learn how to create a Micronaut application and secure it with an OCI (Oracle Cloud Infrastructure) Identity Domain.

Secure a Micronaut application with Keycloak

Learn how to create a Micronaut application and secure it with an Authorization Server provided by Keycloak.

Secure a Micronaut application with Auth0

Learn how to create a Micronaut application and secure it with an Authorization Server provided by Auth0.

Secure a Micronaut application with LinkedIn

Learn how to create a Micronaut application and authenticate with LinkedIn.

Secure a Micronaut application with GitHub

Learn how to create a Micronaut application and secure it with an Authorization Server provided by GitHub. Learn how to write your own Authentication Mapper.

Secure a Micronaut application with Cognito

Learn how to create a Micronaut application and secure it with an Authorization Server provided by Cognito.

Secure a Micronaut application with Google

Learn how to create a Micronaut application, secure it with Google, and provide authentication with OpenID Connect.

Secure a Micronaut application with Okta

Learn how to create a Micronaut application and secure it with an Authorization Server provided by Okta.

Beyond JSON

Download an Excel file in a Micronaut application

Learn how to download an Excel file with the Micronaut framework and Spreadsheet Builder library.

Cache

Micronaut Cache

Learn how to use Micronaut caching annotations

Client Credentials

Client Credentials Flow with Micronaut and Oracle Identity Domain

Learn how to use Client Credentials Flow between Micronaut microservices with an Authorization Server provided by Oracle Identity Domain.

Client Credentials Flow with Micronaut and Auth0

Learn how to use Client Credentials Flow between Micronaut microservices with an Authorization Server provided by Auth0.

Client Credentials Flow with Micronaut and Amazon Cognito

Learn how to use Client Credentials Flow between Micronaut microservices with an Authorization Server provided by Amazon Cognito.

Database Modeling

Many-to-Many with Micronaut Data JDBC and MySQL

Learn how to map a many-to-many association with Micronaut Data JDBC and MySQL.

Many-to-Many with Micronaut Data JDBC and Oracle

Learn how to map a many-to-many association with Micronaut Data JDBC and Oracle.

One-to-Many with Micronaut Data JDBC

Learn how to map a one-to-many association with Micronaut Data JDBC.

Distributed Tracing

Use OpenTracing with Zipkin and the Micronaut Framework for Microservice Distributed Tracing

Use Zipkin distributed tracing to investigate the behaviour of your Micronaut applications.

Distribution

Building a Docker image of your Micronaut application

Micronaut build plugins offer several ways to build Docker images: JAR, GraalVM native executable, and CRaC.

Deploy GraalVM Native Executable to Google Cloud Run

Deploy a GraalVM Native Executable of a Micronaut application to Google Cloud Run - a fully managed serverless platform for containerized applications.

Deploy a Micronaut application to Oracle Cloud

Learn how to deploy a Micronaut application to Oracle Cloud.

Deploy a Micronaut application to Microsoft Azure

Learn how to deploy a Micronaut application to Microsoft Azure.

Read

Creating your first Micronaut Graal application

Learn how to create a Hello World Micronaut GraalVM application.

Email

Send Emails with Amazon SES from the Micronaut Framework

Learn how to send emails with Amazon SES from a Micronaut application.

Send Emails with SendGrid from the Micronaut Framework

Learn how to send emails with SendGrid from a Micronaut application.

GraphQL

Creating a ToDo application with Micronaut GraphQL

Build a TODO application with Micronaut GraphQL.

Micronaut GraphQL

Learn how to use Micronaut GraphQL.

i18n

Localize your application

Respond to a localized version of your application with LocalizedMessageSource.

JAX-RS

Micronaut JAX-RS

Expose endpoints using JAX-RS annotations in a Micronaut application

Kotlin

Using Kotlin Extension Functions in the Micronaut Framework

Take a tour of the extension functions in the Micronaut framework and learn to write your own

Read

Messaging

Publishing and subscribing to MQTT Topics from a Micronaut Application

Learn how to use Mosquitto as an MQTT broker, create a Micronaut CLI application and publish an MQTT topic, and subscribe to the MQTT topic in a different Micronaut Messaging application.

Oracle Cloud Streaming and the Micronaut Framework - Event-Driven Applications at Scale

Use Oracle Cloud Streaming to communicate between your Micronaut applications.

Kafka and the Micronaut Framework - Event-Driven Applications

Use Kafka to communicate between your Micronaut applications.

RabbitMQ RPC and the Micronaut Framework

Use RabbitMQ RPC to use request-reply pattern in your Micronaut applications.

RabbitMQ and the Micronaut Framework - Event-Driven Applications

Use RabbitMQ to communicate between your Micronaut applications.

Metrics

Collect metrics with the Micronaut framework and monitor them on Amazon CloudWatch

Learn how to collect standard and custom metrics with the Micronaut framework and monitor them on Amazon CloudWatch.

Collect metrics with the Micronaut Framework and monitor them on Oracle Cloud

Learn how to collect standard and custom metrics with the Micronaut framework and monitor them on Oracle Cloud.

Collect Metrics with Micronaut

Learn how to collect standard and custom metrics with the Micronaut framework.

Micronaut Security

Testing Micronaut Security

Learn how to test your application's behavior when a user with specific roles is authenticated

Micronaut Security API Key

Learn how to secure a Micronaut application using an API Key.

X.509 Mutual Authentication

Learn how to implement mutual authentication using SSL and X.509 certificates.

JWK Generation with a Micronaut Command Line Application

Learn how to generate a JSON Web Key (JWK) with a Micronaut CLI (command-line interface) application

JWK Keys endpoint

Learn how to expose a keys endpoint with primary and secondary JSON Web Key (JWK)

Micronaut Token Propagation

Learn how to leverage token propagation in the Micronaut framework to simplify your code while keeping your microservices secure.

Micronaut Basic Auth

Learn how to secure a Micronaut application using 'Basic' HTTP Authentication Scheme.

Micronaut JWT Authentication

Learn how to secure a Micronaut application using JWT (JSON Web Token) Authentication.

Micronaut JWT authentication via Cookies

Learn how to secure a Micronaut application using JWT (JSON Web Token) based authentication where the JWT tokens are transported via Cookies.

Session-based authentication

Learn how to secure a Micronaut application using session-based authentication.

MongoDB

Micronaut MongoDB Asynchronous

Learn how to use a non-blocking reactive streams MongoDB client with a Micronaut application

Micronaut MongoDB Synchronous

Learn how to use a blocking MongoClient with a Micronaut application

Object Storage

Use the Micronaut Object Storage API to store files in Google Cloud Storage

Learn how to upload and retrieve files from Google Cloud Storage using the Micronaut Object Storage API

Use the Micronaut Object Storage API to store files in Oracle Cloud Infrastructure (OCI) Object Storage

Learn how to upload and retrieve files from Oracle Cloud Infrastructure (OCI) Object Storage using the Micronaut Object Storage API

Use the Micronaut Object Storage API to store files in Amazon S3

Learn how to upload and retrieve files from Amazon S3 using the Micronaut Object Storage API

OpenAPI

Micronaut Server generation with OpenAPI

Learn how to write an OpenAPI definition, use it to generate a server template for a Micronaut application, and get it all to work

Scheduling

Schedule periodic tasks inside your Micronaut applications

Learn how to schedule periodic tasks inside your Micronaut microservices.

Schema Migration

Schema Migration with Flyway

Learn how to use Flyway to manage your schema migrations.

Schema Migration with Liquibase

Learn how to use the Liquibase to manage your schema migrations.

Service Discovery

Consul and the Micronaut Framework - Microservices Service Discovery

Use Consul service discovery to expose your Micronaut applications.

Eureka and the Micronaut Framework - Microservices Service Discovery

Use Netflix Eureka service discovery to expose your Micronaut applications.

Turbo

Hotwire Turbo Chat with Micronaut Views

This guide shows how to build a Micronaut Framework chat application such as the Rails application demonstrated in the Hotwire announcement screencast.

Validation

Error Handling

Learn about error handling in the Micronaut framework.

Views

Server-side HTML with Thymeleaf

Learn how to render an HTML page with Thymeleaf and Micronaut Views

WebSockets

Expose a WebSocket Server in a Micronaut Application

Build a chat application by exposing a WebSocket Server with the Micronaut Framework

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