theme: OCI White slidenumbers: false [.hide-footer]
- Graeme Rocher
- Creator of Grails and Micronaut
- Principal Engineer at Object Computing
- 2018 Oracle Groundbreaker Award Winner
- Java Champion
- Brief Introduction to Micronaut
- 10 Things You Can Do with Micronaut
- Demos, Demos and more demos
- Summary
- Q & A
- A Microservices and Serverless Focused framework (hence the branding)
- Also a Complete Application Framework for any type of Application
- Dependency Injection, Aspect Oriented Programming (AOP), Configuration Management, Bean Introspection and more..
- Microservices
- Serverless Applications
- Message-Driven Applications with Kafka/Rabbit
- CLI Applications
- Even Android Applications
- Anything with
static void main(String..args)
- An Application Framework for the Future
- Reflection Free, Runtime Proxy Free, No Dynamic Classloading (in 1.1)
- Ahead of Time (AOT) Compilation AOT APIs
- ... oh and let's you build Microservices
- Reflection and Runtime Proxy Free
- Supports Configuration Injection
- Supports Aspect Oriented Programming (AOP)
- Constructor, field, method injection all supported
- Integration with PicoCLI
- Can use any Micronaunt component, like the HTTP client.
- Supports going native with GraalVM for ultra fast execution
- Low level, flexible client
- Also declaring compile time client
- Just declare an interface and have it implemented for you!
- Uses Micronaut's low overead AOP
| Runtime | Memory | Startup |
|---|---|---|
| JDK 11 | 75MB | 1.1s |
| JDK 13 | 75MB | 900ms |
| JDK 13 + CDS | 75MB | 400ms |
| GraalVM Substrate | 15MB | 21ms |
- Compilation time computed
- Adds no overhead to the runtime
- Generated YAML can be imported into Swagger UI
- Or use AutoREST to generate a JS client
- Write headless Microservices that just listen for Kafka messages
- Great for real time processing
- Send Kafka messages with
@KafkaClient, implemented automatically for you.
- Precomputed SQL or JPA-QL queries
- Uses Micronaut's zero overhead AOP
- The JDBC implementation completely reflection free
- Support for Oracle DB, MySQL, Postgres and SQL Server
- Tracing: Support for Open Tracing, Zipkin and Jaeger
- Metrics: Based on Micrometer with support for ever metric registry imaginable
- Instrumentation for the whole framework (client and server requests)
- Website: https://micronaut.io
- Github: https://github.com/micronaut-projects/micronaut-core
- Comprehensive Guides: https://guides.micronaut.io
- Talk to us on Gitter: https://gitter.im/micronautfw
- Micronaut provides a wealth of features
- Tackles a range of uses cases
- General purpose for whatever your needs
- Optimizes for reduced memory usage and startup time
- Works well with Graal native image
