Explore GraphQL's capabilities for building real-time APIs in this comprehensive conference talk. Learn about GraphQL's query language, its advantages over traditional REST APIs, and how to implement GraphQL Subscriptions for real-time updates. Dive into practical examples, including a Game of Thrones-inspired demonstration, to understand core concepts such as schema definition, data fetching, and manipulation. Discover graphical tools, database integration, and client-side implementation. Address common challenges in GraphQL development and gain insights into designing efficient architectures for real-time data handling. Benefit from lessons learned during nine months of developing and operating GraphQL-based APIs in production environments.