@sleekio/sdk/src/config.js

Modern A/B Testing SDK for JavaScript Applications - Production-ready with graceful fallbacks

/**
 * Sleek SDK Configuration
 * Production-ready defaults with environment-specific overrides
 */

export const DEFAULT_CONFIG = {
  // API Configuration
  requestTimeout: 3000, // 3 seconds - fast timeout for better UX
  retryAttempts: 2, // Limited retries to avoid blocking

  // Event Batching
  batchEvents: true,
  batchSize: 20, // Larger batch size for efficiency
  flushInterval: 10000, // 10 seconds

  // Assignment Behavior
  autoRefresh: true,
  gracefulFallback: true,

  // Logging and Debugging
  enableLogging: false, // Disabled by default for production
  enableDebugMode: false,

  // User Management
  userManager: {
    useLocalStorage: true,
    useSessionStorage: true,
    cookieExpireDays: 365,
    useDeviceFingerprint: false, // Privacy-friendly default
    fallbackToFingerprint: false,
  },

  // Headers
  headers: {},
};

export const DEVELOPMENT_CONFIG = {
  ...DEFAULT_CONFIG,
  requestTimeout: 10000, // Longer timeout for development
  enableLogging: true,
  enableDebugMode: true,
  retryAttempts: 3,
};

export const PRODUCTION_CONFIG = {
  ...DEFAULT_CONFIG,
  requestTimeout: 2000, // Very fast timeout for production
  enableLogging: false,
  enableDebugMode: false,
  retryAttempts: 1, // Minimal retries
  gracefulFallback: true,
};

/**
 * Get configuration based on environment
 */
export function getEnvironmentConfig(environment = "production") {
  switch (environment) {
    case "development":
      return DEVELOPMENT_CONFIG;
    case "production":
      return PRODUCTION_CONFIG;
    default:
      return DEFAULT_CONFIG;
  }
}

/**
 * Merge user options with environment defaults
 */
export function mergeConfig(userOptions = {}, environment = "production") {
  const envConfig = getEnvironmentConfig(environment);

  return {
    ...envConfig,
    ...userOptions,
    userManager: {
      ...envConfig.userManager,
      ...(userOptions.userManager || {}),
    },
    headers: {
      ...envConfig.headers,
      ...(userOptions.headers || {}),
    },
  };
}