Cosmos DB Change Feed and Event-Driven Architecture

Modern applications demand real-time responsiveness, and event-driven architectures are the key to unlocking this capability. By leveraging database change feeds, you can instantly react to data modifications and trigger downstream workflows without complex polling mechanisms. This text-based course guides you through the foundational concepts of event-driven processing using Cosmos DB. You will transition from understanding basic database triggers to designing robust, decoupled microservices that react to data changes in real time. We cover modern patterns such as the push model with Azure Functions, the pull model with the Change Feed Processor SDK, and handling high-throughput event streams. What you'll learn: - Understand the core architecture of the Cosmos DB change feed and its role in event-driven systems - Configure the change feed using both push and pull processing models - Implement the Change Feed Processor SDK to manage state, leases, and partition distribution - Design resilient error-handling and dead-letter patterns for reliable event delivery - Apply modern event-driven patterns to synchronize data stores and update caches instantly - Monitor and scale change feed consumers to handle high-throughput workloads efficiently Starting with fundamental database concepts and terminology, this course walks you through the architectural patterns and practical configurations needed to build reactive systems. You will read detailed explanations, analyze architectural diagrams represented in structured text, and study production-ready code configurations. This course is designed for backend developers, data engineers, and cloud architects who have a basic understanding of databases and want to master event-driven integration patterns. No prior experience with Cosmos DB change feed is required. Start reading today to build highly responsive, event-driven data pipelines.