Evaluate feature flags

Feature flags are evaluated for the current person. Use them for staged rollouts, experiments, and remote configuration.

Evaluate flags

Pass the keys you need; pass nil to evaluate every flag:

let flags = try await voidhash.getFeatureFlags(["new-onboarding", "pricing-test"])

let newOnboarding = flags.first { $0.key == "new-onboarding" }?.enabled == true
let pricing = flags.first { $0.key == "pricing-test" }

Validate a variant payload before using it; payloads are untyped JSON.

Identity behavior

Flag results are scoped to the current person. The SDK clears them after identify() or a reset so one customer never sees another customer's assignment.

Choose a safe default while flags are loading or unavailable. For paid access, use entitlement grants rather than a feature flag.