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

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​ Level up your system design skills! This course progresses from foundational concepts to production-ready systems, covering databases, scaling, and load balancing. Learn practical techniques for building and securing APIs, including RESTful and GraphQL.

Course developed by @hayk.simonyan

❤️ Support for this channel comes from our friends at Scrimba – the coding platform that’s reinvented interactive learning: https://scrimba.com/freecodecamp

⭐️ Contents ⭐️
– 0:00:00 Introduction
– 0:03:05 Single Server Setup
– 0:07:12 Databases: SQL, NoSQL, Graph
– 0:13:32 Vertical vs Horizontal Scaling
– 0:16:22 Load Balancing
– 0:25:08 Health Checks
– 0:28:00 Single Point of Failure (SPOF)
– 0:31:01 API Design
– 0:47:17 API Protocols
– 0:59:10 Transport Layer: TCP, UDP
– 1:04:22 RESTful APIs
– 1:19:04 GraphQL
– 1:24:52 Authentication
– 1:45:51 Authorization
– 1:57:02 Security

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