> ## Documentation Index
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> Use this file to discover all available pages before exploring further.

# createSession

[API Reference](/api-reference/modelence/server/functions/../../../index) / [modelence](/api-reference/modelence/server/functions/../../index) / [server](/api-reference/modelence/server/functions/../index) / createSession

> **createSession**(`userId`): `Promise`\<`Session`>

Defined in: [packages/modelence/src/auth/session.ts:107](https://github.com/modelence/modelence/blob/0e072e44dd157ae8712ae82111cf4aa756460eba/packages/modelence/src/auth/session.ts#L107)

## Parameters

| Parameter | Type                 | Default value |
| --------- | -------------------- | ------------- |
| `userId`  | `null` \| `ObjectId` | `null`        |

## Returns

`Promise`\<`Session`>