google-adk-kotlin-core/com.google.adk.kt.sessions/InMemorySessionService

InMemorySessionService

class InMemorySessionService : SessionService

An in-memory implementation of SessionService assuming Session objects are mutable regarding their state map, events list, and last update time.

This implementation stores sessions, user state, and app state directly in memory in a thread-safe manner. It is suitable for testing or single-node deployments where persistence is not required.

Note: State merging (app/user state prefixed with app: / user:) occurs during retrieval operations (getSession, createSession).

Constructors

InMemorySessionService

constructor()

Functions

appendEvent

open suspend override fun appendEvent(session: Session, event: Event): Event

Appends event to session, applying its state delta to the in-memory session and recording the event; temp: keys are applied to the in-memory state (so later agents in the invocation can read them) but removed from event before persistence.

closeSession