feature-toggle-package/dist/feature-toggle.d.ts

A lightweight and flexible feature toggle (feature flag) implementation for JavaScript/TypeScript applications

export interface FeatureConfig {
    [featureName: string]: boolean;
}

export interface SubmoduleConfig {
    enabled: boolean;
    features?: FeatureConfig;
}

export interface ModuleConfig {
    enabled: boolean;
    submodules?: {
        [submoduleName: string]: SubmoduleConfig;
    };
}

export interface AppConfig {
    modules: {
        [moduleName: string]: ModuleConfig;
    };
}

export class ConfigurationError extends Error {
    constructor(message: string, cause?: unknown);
}

export class FeatureToggleError extends Error {
    constructor(message: string);
}

export class ModuleError extends Error {
    constructor(message: string);
}

export class SubmoduleError extends Error {
    constructor(message: string);
}

export function getConfig(configPath?: string): Promise<AppConfig>;

export function isFeatureEnabled(
    moduleName: string,
    submoduleName?: string,
    featureName?: string
): Promise<boolean>;