[youtubei.js](../../../../README.md) / [Utils](../README.md) / generateSidAuth

# Function: generateSidAuth()

> **generateSidAuth**(`sid`): `Promise`\<`string`\>

Defined in: [src/utils/Utils.ts:110](https://github.com/LuanRT/YouTube.js/blob/faaf5fc5c15ff93eac8442b2fbdb4767d9a47b3f/src/utils/Utils.ts#L110)

Generates an authentication token from a cookies' sid.

## Parameters

### sid

`string`

Sid extracted from cookies

## Returns

`Promise`\<`string`\>