HELIDON-CLI.md

Helidon CLI

The Helidon CLI lets you easily create a Helidon project by picking from a set of archetypes.

It also supports a developer loop that performs continuous compilation and application restart, so you can easily iterate over source code changes.

Prerequisites

Helidon requires Java 21 (or newer) and Maven 3.6.1 or newer.

• Java SE
• Maven

You should make sure java and mvn are in your path.

java -version
mvn --version

Install

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"

Create a New Project

helidon init

Then answer the questions.

Developer Loop

cd myproject
helidon dev

As you make source code changes the project will automatically recompile and restart your application.

Demo