Explore building a serverless URL shortener application using only YAML in this conference talk from GOTO Copenhagen 2019. Learn how to create a massively scalable solution with minimal architecture by abandoning functional code and handling all business logic and security at the gateway level. Follow along as Eric Johnson, Senior Developer Advocate at AWS Serverless, demonstrates live coding to integrate authorization and a simple database using less than 400 lines of YAML. Discover techniques for reducing latency and compute costs while achieving global, regional, or private data access. Gain insights into serverless architecture, API creation, integration services, mapping templates, testing, redirecting, headers, and implementing an authorizer for enhanced security.