1. Project Helidon Deep Dive
Confidential – Oracle Internal/Restricted/Highly Restricted
Project Helidon Deep Dive
Java Libraries for Microservices
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Joe Di Pol
Romain Grécourt
Oracle
Oct 25, 2018

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3. Agenda Brief Helidon Overview Dive into code1
Brief Helidon Overview Dive into code 2
Confidential – Oracle Internal/Restricted/Highly Restricted

4. A set of Java libraries for developing microservices.

5. Microframework
Functional style
Reactive
Transparent
MicroProfile
Declarative style
CDI, JAX-RS, JSON-P
Familiar to Java EE devs

6. Helidon Architecture Helidon SE Helidon MP Netty Simple Transparent
No classloading tricks
No packaging tricks
Just a Java SE application
CDI
JAX-RS
JSON-P
WebServer
Config
Security
Netty

7. What is Helidon SE? Reactive WebServer
Simple functional routing model with reactive Flow API
Built on Netty
OpenTracing and Metrics
JAX-RS, JSON-P support
Static content support
Config
Flexible, typed config model
Multiple data sources
Hierarchical model
Dynamic updates
Extensible
Security
Authentication
Authorization
Outbound Security
Auditing
Extensible

8. Open Source Project
@helidon_project

9. Dive into Code https://github.com/barchetta/helidon-se-codeone-2018
Server config and startup
Routing
JSON handling: requests, response
Threading considerations, Async
Metrics
Tracing
Security
Large payload (streaming)

10. Copyright © 2018 Oracle. All rights reserved.
Q & A
Copyright © 2018 Oracle. All rights reserved.