Pre-computed Reads
Writes do the work. Reads return what’s already computed.
Actionbase
One database for user-user (follows), user-item (likes), and item-item (related items) interactions — precomputed at write time, served as simple lookups
U2U · U2I · I2I
One model for user–user, user–item, and item–item interactions.
REST API
Simple writes, fast reads — all via HTTP.
CDC Built-in
Stream changes for downstream pipelines.
Battle-tested
Serving over a million requests per minute at Kakao.