Why SOASAP
Technical advantages over remote-evaluation feature flag systems.
O(1) local evaluation
Flag reads are dictionary lookups against an in-memory snapshot. No HTTP round-trip on the request path.
Real-time synchronization
SSE streams delta updates when flags change in the dashboard. Connected SDKs refresh without polling.
Persistent cache
On restart, SDKs hydrate from disk before the first SSE frame, so cold starts do not block on the network.
Offline-first operation
When SOASAP Cloud is unreachable, evaluation continues against the last known snapshot.
Non-blocking startup
Preload patterns let the process accept traffic while synchronization completes in the background.
Unified SDK architecture
Every official SDK shares the same model: snapshot, SSE sync, persistent cache, and explicit defaults.