This advanced C# and EF Core course is designed for developers looking to optimize performance and implement best practices in application design. The course begins with tracking immutable records in EF Core, showing how to manage unchangeable data efficiently. It addresses the pitfalls of overusing service layers in Web APIs and introduces lightweight change trackers for Dapper as an optimal alternative to EF Core in certain scenarios. Learners explore DDD aggregates, gaining a fundamental understanding of structuring applications with domain-driven design principles. The series also highlights performance considerations, such as the implications of using double for geolocation and optimizing LINQ queries, including SelectMany. Students learn yield return and IEnumerable for efficient data streaming and discover the power of lightweight query specifications to simplify complex queries. Additionally, the course examines the relevance of design patterns in modern C# development and teaches how to make domain rules explicit for better maintainability and clarity in business applications. By completing this course, developers will have the tools and knowledge to write high-performance, maintainable, and well-architected C# applications, while mastering advanced EF Core techniques and best practices.
