Aging legacy database technologies used in current relational database management systems (RDBMS) are no longer able to handle the needs of modern web applications. MongoDB, built upon a NoSQL foundation, has taken the world by storm and is rapidly gaining market share over inadequate RDBMS-based websites. It is critical for DevOps, technical managers, and those whose careers are in transition to gain knowledge on how to build dynamic database-driven web applications based upon MongoDB. This book takes a deep dive into management and the application development of a web application that uses MongoDB 4.x as its database.

The book takes a hands-on approach, building a set of useful Python classes, starting with simple operations, and adding more complexity as the book progresses. When you have finished going through the book, you'll have mastered not only basic day-to-day MongoDB database operations, but will have gained a firm understanding of development using complex MongoDB features such as replication, sharding, and the aggregation framework. Complex queries are presented in both JavaScript form as well as the equivalent in Python. The JavaScript queries presented will allow DBAs to manage and manipulate data directly, as well as being able to generate ad hoc reports for management. Throughout the book, practical examples of each concept are covered in detail, along with potential errors and gotchas.

All examples in the book are based upon realistic real-world scenarios ranging from a small company that sells sweets online, all the way to a start-up bank that offers micro-financing to customers worldwide. With each scenario, you'll learn how to develop a usable MongoDB database structure based on realistic customer requirements. Each major part of the book, based upon a different scenario, guides you through progressively more complex tasks, ranging from generating simple reports, to directing queries through a global network of sharded MongoDB database clusters.