# login

> **login**(`client`, `options`): [`Promise`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise)\<`` `0x${string}` ``\>

Defined in: [packages/synapse-core/src/session-key/actions.ts:49](https://github.com/FilOzone/synapse-sdk/blob/2c515fb6328c4f7a68ed82653d96ab11299e177d/packages/synapse-core/src/session-key/actions.ts#L49)

## Parameters

| Parameter | Type |
| ------ | ------ |
| `client` | `Client`\<`Transport`, `Chain`, `Account`\> |
| `options` | [`LoginOptions`](/reference/filoz/synapse-core/session-key/type-aliases/loginoptions/) |

## Returns

[`Promise`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise)\<`` `0x${string}` ``\>