***

title: "InMemorySessionCacheStrategy"
generated: true
---------------

<GenerationInfo sourceFile="packages/core/src/config/session-cache/in-memory-session-cache-strategy.ts" sourceLine="16" packageName="@vendure/core" />

Caches session in memory, using a LRU cache implementation. Not suitable for
multi-server setups since the cache will be local to each instance, reducing
its effectiveness. By default the cache has a size of 1000, meaning that after
1000 sessions have been cached, any new sessions will cause the least-recently-used
session to be evicted (removed) from the cache.

The cache size can be configured by passing a different number to the constructor
function.

```ts title="Signature"
class InMemorySessionCacheStrategy implements SessionCacheStrategy {
    constructor(cacheSize?: number)
    delete(sessionToken: string) => ;
    get(sessionToken: string) => ;
    set(session: CachedSession) => ;
    clear() => ;
}
```

* Implements: [`SessionCacheStrategy`](/current/core/reference/typescript-api/auth/session-cache-strategy#sessioncachestrategy)

<div className="members-wrapper">

### delete

\<MemberInfo kind="method" type={`(sessionToken: string) => `}   />

### get

\<MemberInfo kind="method" type={`(sessionToken: string) => `}   />

### set

\<MemberInfo kind="method" type={`(session: <a href='/current/core/reference/typescript-api/auth/session-cache-strategy#cachedsession'>CachedSession</a>) => `}   />

### clear

\<MemberInfo kind="method" type={`() => `}   />

</div>