{"message":"Holiday API is running","version":"1.0.0","endpoints":["GET /v1/countries/:countryCode/holidays/:date? - Get holidays (date: YYYY or YYYY-MM or YYYY-MM-DD)","GET /v1/countries/:countryCode/states/:state/holidays/:date? - Get state holidays (date: YYYY or YYYY-MM or YYYY-MM-DD)","GET /v1/countries/:countryCode/national/holidays/:date? - Get national holidays only (date: YYYY or YYYY-MM or YYYY-MM-DD)"],"queryParameters":{"lang":"Language code (e.g., 'en', 'de', 'fr') - defaults to 'en'","start":"Start date for range queries (YYYY-MM-DD format)","end":"End date for range queries (YYYY-MM-DD format)"}}