This blog post discusses implementing a serverless architecture using Amazon RDS, AWS Lambda, and API Gateway with Python, FastAPI, and SQLAlchemy. It highlights the benefits of this setup, including scalability, reliability, and support for complex querying capabilities. The author outlines key considerations when integrating RDS with Lambda, such as VPC configuration, connection management, and security measures. The post explains the use of RDS Proxy to efficiently manage database connections and explores the implementation details using Terraform for infrastructure management. It also provides code examples for setting up FastAPI routes and SQLAlchemy models, demonstrating how to create a robust serverless API with a relational database backend.