welcome

Thank you for purchasing the MEAP edition of “MongoDB in Action, Third Edition”. I'm thrilled to have you join this journey as we explore MongoDB 8.0 and the MongoDB Atlas Platform, with a focus on building AI-driven and data-intensive applications.

To get the most out of this book, it’s helpful to have a foundation in programming and some experience with databases, particularly NoSQL systems. If you’ve worked with MongoDB before, you’ll find this book a valuable resource to deepen your understanding of its new capabilities. If you’re new to some of the advanced topics, don’t worry—I’ll guide you through everything in a clear and structured way.

This book is designed to be a comprehensive resource for mastering the latest features in MongoDB 8.0 and MongoDB Atlas. We’ll dive into the new sharding enhancements, including the ability to select the optimal shard key using the Shard Key Analyzer and the flexibility to unshard collections and work with embedded config servers. These features provide greater control and efficiency in managing distributed data across your clusters.

You’ll also gain expertise in AI-powered search technologies with MongoDB Atlas. The book covers how to implement vector search and full-text search, utilizing advanced features like fuzzy search, autocomplete, and faceted search. These capabilities are crucial for building intelligent applications that require sophisticated search functionalities.