System Design Course – APIs, Databases, Caching, CDNs, Load Balancing & Production Infra

The course provides a solid foundation in system design, covering a wide range of topics from basic architecture to advanced concepts like caching and CDNs. The instructor’s explanations are clear and well-structured, with helpful visual aids. The content is practical, drawing on real-world experience, which adds credibility. However, the course lacks depth in certain areas, such as detailed trade-offs between different caching strategies or database sharding techniques. The information is presented as best practices without citing specific sources, which may limit its academic rigor. The course is particularly strong in API design, offering a comprehensive comparison of REST, GraphQL, and gRPC, and explaining when to use each. The sections on authentication and authorization are also well done, covering OAuth, JWT, and RBAC. The production infrastructure part, including load balancing and health checks, is practical and directly applicable. The title accurately reflects the content, and the course meets its stated objectives. The main weakness is the lack of references to external literature or standards, which would enhance its credibility. Overall, it is a valuable resource for developers seeking to improve their system design skills, but it should be supplemented with more detailed resources for advanced topics.

The title accurately reflects the content, which covers APIs, databases, caching, CDNs, load balancing, and production infrastructure.

8/10

The course is well-structured, covering fundamental system design concepts with clear explanations and practical examples. The content aligns with industry best practices and is presented by an experienced practitioner. However, it is a tutorial based on the author's experience, not peer-reviewed research, and lacks citations to external sources.

• 00:00Introduction
• 03:05Single Server Setup
• 07:12Databases: SQL, NoSQL, Graph
• 13:32Vertical vs Horizontal Scaling
• 16:22Load Balancing
• 25:08Health Checks
• 28:00Single Point of Failure (SPOF)
• 31:01API Design
• 47:17API Protocols
• 59:10Transport Layer: TCP, UDP
• 1:04:22RESTful APIs
• 1:19:04GraphQL
• 1:24:52Authentication
• 1:45:51Authorization
• 1:57:02Security

• freeCodeCamp News — Referenced in the video description as a resource for programming articles.
• freeCodeCamp — Mentioned as the platform to learn to code for free.
• Scrimba — Mentioned as a sponsor and interactive learning platform.

• System Design Primer (GitHub) — A popular open-source resource covering similar system design topics.
• Designing Data-Intensive Applications (book) — A well-regarded book that explores data systems and scalability in depth.

• No direct discordant sources found — The course content aligns with widely accepted industry practices; no conflicting sources were identified.