Building reliable (and fast!) directory sync
Summary
Firezone discusses directory sync fundamentals, highlights the limitations of SCIM for real-time provisioning, and presents a hybrid approach that blends real-time provider webhooks with periodic full sync to keep directory data up to date while reducing API quota usage. The article covers data models (Users, Groups, Members), the flattening strategy for membership, and practical considerations like rate limits, delta syncs, and consistency.