ff-golang-server-sdk
ff-golang-server-sdk is a Go SDK for Harness Feature Flags, enabling applications to integrate with the Harness feature flagging service. It supports both non-blocking and blocking initialization modes, allowing flexibility in how the client connects to the FF service. Developers can evaluate flags, retrieve variations, and receive real-time updates through streaming or a Relay Proxy. The SDK requires Golang 1.20 or later for version v0.1.21 and above, with earlier versions supporting Golang 1.6 through 1.19. Installation is done via go get. Key options include WithWaitForInitialized for blocking startup and WithMaxAuthRetries for controlling authentication attempts. Typical use cases include progressive feature rollout, A/B testing, feature toggling, and delivering personalized user experiences in Go-based backend services.