SQL Server and its cloud cousin Azure SQL are among the most popular relational database management systems. Data hosted in SQL Server sometimes need be securely exposed to outside services and applications. How to build an application programming interface (API) layer that securely exposes data stored in SQL Server to downstream services or consumers?
The example here uses FastAPI in Python, which is a good choice for a simple API layer. Regardless of the exact tooling or programming language you use, there’s a lot to proper API design, documentation, versioning, security, and optimization.