FeatureFlagService

Source: FeatureFlagService.js:24

Service responsible for initializing and querying feature flags.

This service initializes the client once and exposes helper methods to validate configuration and to read feature flag values.

Constructor

Create a new FeatureFlagService and start initialization. The initialization promise resolves when the client emits the synchronized event.

Instance Methods

isEnabled(flagName: FeatureFlagKey): Promise.<boolean>

Check whether a feature flag is enabled.

Waits for the client to finish initialization before querying. Returns false when feature flags are not configured.

Parameters

• flagName (FeatureFlagKey) — The feature flag key to check.

Returns

• Promise.<boolean> — True if the flag is enabled; otherwise false.

getAll(): Promise.<Array.<{name: string, enabled: boolean}>>

Retrieve all feature flag definitions.

Filters out stale flags and returns an array of simplified flag states. Returns an empty array when feature flags are not configured.

Returns

• Promise.<Array.<{name: string, enabled: boolean}>> — Array of feature flag states.