{"message":"Simple Books API - No Google Dependencies","description":"API đơn giản với 3 endpoints lấy sách có PDF/EPUB từ Open Library và Project Gutenberg","endpoints":{"downloads":{"getList":"GET /api/book?page=1&limit=20&source=&category=&format= - Danh sách sách có PDF/EPUB","search":"GET /api/book/search?q=javascript&page=1&source=&format= - Tìm kiếm sách","getDetail":"GET /api/book/:id - Chi tiết sách + download links (PDF/EPUB)"},"sync":{"openLibrary":"POST /api/book/sync/openlibrary?subject=programming&limit=30 - Manual sync Open Library","gutenberg":"POST /api/book/sync/gutenberg?search=fiction&page=1 - Manual sync Gutenberg"}},"sources":"Open Library (every 3 hours) + Project Gutenberg (every 4 hours)","features":"No Google API, Direct downloads, Auto sync"}