https://github.com/quarkiverse/quarkus-flags

A lightweight and extensible feature flag extension
https://github.com/quarkiverse/quarkus-flags

feature-flags quarkus-extension toggles

Last synced: 4 days ago
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A lightweight and extensible feature flag extension

• Host: GitHub
• URL: https://github.com/quarkiverse/quarkus-flags
• Owner: quarkiverse
• License: apache-2.0
• Created: 2025-11-11T15:54:02.000Z (7 months ago)
• Default Branch: main
• Last Pushed: 2026-05-28T15:11:42.000Z (11 days ago)
• Last Synced: 2026-05-28T16:24:41.605Z (10 days ago)
• Topics: feature-flags, quarkus-extension, toggles
• Language: Java
• Homepage: https://docs.quarkiverse.io/quarkus-flags/dev
• Size: 367 KB
• Stars: 6
• Watchers: 0
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Codeowners: .github/CODEOWNERS
  • Security: security/deployment/pom.xml

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README

          
# Quarkus Feature Flags

[![Version](https://img.shields.io/maven-central/v/io.quarkiverse.flags/quarkus-flags-parent?logo=apache-maven&style=flat-square)](https://central.sonatype.com/artifact/io.quarkiverse.flags/quarkus-flags-parent)

This project aims to provide a lightweight and extensible feature flag Quarkus extension.

More specifically, it provides:

* An API to access feature flags.

* An SPI to provide flags and externalize the computation of a flag value.

* Built-in flag providers:

   * Leverage Quarkus config to define feature flags,

   * In-memory repository (useful for testing and dynamic registration).

* Built-in flag evaluators:

   * Time span evaluator - based on the current date-time obtained from the system clock in the default time-zone.

   * Composite evaluator - evaluates a flag with the specified sub-evaluators.

   * Variant evaluator - selects a value from a set of named variants based on the computation context.

* [Hibernate ORM module](https://docs.quarkiverse.io/quarkus-flags/dev/hibernate-orm.html), where feature flags are mapped from an annotated entity and are automatically loaded from the database.

* [Security module](https://docs.quarkiverse.io/quarkus-flags/dev/security.html), so that it's possible to evaluate flags based on the current `SecurityIdentity`.

* [Qute module](https://docs.quarkiverse.io/quarkus-flags/dev/qute.html), so that it's possible to use the flags directly in templates.

* [Cron module](https://docs.quarkiverse.io/quarkus-flags/dev/cron.html) with a flag evaluator that matches a specific CRON expression.

* [OpenFeature module](https://docs.quarkiverse.io/quarkus-flags/dev/openfeature.html), so that it's possible to use any OpenFeature-compatible provider as a flag backend.

## Documentation

The documentation is available at https://docs.quarkiverse.io/quarkus-flags/dev/.