Helidon: Java Libraries for Microservices
Project Helidon is a set of Java Libraries for writing microservices. Helidon supports two programming models:
- Helidon MP: MicroProfile 3.3
- Helidon SE: a small, functional style API
In either case your application is just a Java SE program.
License
Helidon is available under Apache License 2.0.
Documentation
Latest documentation and javadocs are available at https://helidon.io/docs/latest.
Get Started
See Getting Started at https://helidon.io.
Downloads / Accessing Binaries
There are no Helidon downloads. Just use our Maven releases (GroupID io.helidon
).
See Getting Started at https://helidon.io.
Helidon CLI
MacOS:
curl -O https://helidon.io/cli/latest/darwin/helidon
chmod +x ./helidon
sudo mv ./helidon /usr/local/bin/
Linux:
curl -O https://helidon.io/cli/latest/linux/helidon
chmod +x ./helidon
sudo mv ./helidon /usr/local/bin/
Windows:
PowerShell -Command Invoke-WebRequest -Uri "https://helidon.io/cli/latest/windows/helidon.exe" -OutFile "C:\Windows\system32\helidon.exe"
See this document for more info.
Build
You need JDK 17+ to build Helidon.
You also need Maven. We recommend 3.6.1 or newer.
Building the documentation requires the dot
utility from Graphviz.
This is included in many Linux distributions. For other platforms
see https://www.graphviz.org/.
Full build
$ mvn install
Checkstyle
# Cd to the component you want to check
$ mvn validate -Pcheckstyle
Copyright
# Cd to the component you want to check
$ mvn validate -Pcopyright
Spotbugs
# Cd to the component you want to check
$ mvn verify -Pspotbugs
Build Scripts
Build scripts are located in etc/scripts
. These are primarily used by our pipeline,
but a couple are handy to use on your desktop to verify your changes.
copyright.sh
: Run a full copyright checkcheckstyle.sh
: Run a full style check
Get Help
- See the Helidon FAQ
- Ask questions on Stack Overflow using the helidon tag
- Join us on Slack: #helidon-users
Get Involved
- Learn how to contribute
- See issues for issues you can help with
Stay Informed
- Twitter: @helidon_project
- Blog: Helidon on Medium