Implementing Prefixed base62 UUIDv7 Object IDs in Ecto

Dan Schultzer introduces the concept of using prefixed base62 encoded UUIDv7 Object IDs with Ecto in Elixir applications. The article starts by explaining the limitations of using incremental integer IDs and UUIDv4, particularly with enumeration attacks and sorting difficulties. Schultzer then explains the benefits of UUIDv7, which combines a Unix epoch timestamp with UUIDs to maintain index locality. He further elaborates on the usage of base62 encoding for UUIDs to make them more human-readable and suitable for use in API endpoints. The detailed guide includes steps for setting up Ecto to generate and handle these custom IDs, requirements like the Uniq library, and practical examples for integrating the approach in your application's schema. The implementation is concluded with examples of schema definitions using the MyApp.Schema module for convenience.