Official SDKs for Subflag feature flag management.
| SDK | Language | Framework | Install |
|---|---|---|---|
| Web Provider | TypeScript | React, Vue, etc. | npm install @subflag/openfeature-web-provider |
| Node Provider | TypeScript | Express, Fastify, etc. | npm install @subflag/openfeature-node-provider |
| Ruby Provider | Ruby | OpenFeature SDK | gem install subflag-openfeature-provider |
| Kotlin Provider | Kotlin/Java | Android, Spring, Ktor | JitPack |
| Rails | Ruby | Rails | gem install subflag-rails |
The Web, Node, Ruby, and Kotlin providers are OpenFeature-compliant, providing a vendor-neutral API for feature flags. The Rails SDK offers a more idiomatic Rails experience with helpers and view integration.
- Sign up at subflag.com
- Create a project with environments (dev, staging, production)
- Create feature flags and configure variants
- Generate an API key for your environment
- Install an SDK and start evaluating flags
MIT