# Using with Lit Passkey Auth

Lit provides a simple way to integrate passkeys authentication into your application. This guide will walk you through the process of setting up user passkeys authentication with Lit.

# Getting Started

First ensure you've installed the necessary packages:

npm install @snowballtools/js-sdk @snowballtools/auth-lit

Then initialize Snowball with passkey auth:

import { Snowball, SnowballChain } from '@snowballtools/js-sdk'
import { LitPasskeyAuth } from '@snowballtools/auth-lit'

const snowball = Snowball.withAuth({
  passkey: LitPasskeyAuth.configure({
    litRelayApiKey: 'your-lit-relay-api-key',
  })
}).create({
  apiKey: 'your-snowball-api-key',
  initialChain: SnowballChain.sepolia
});

# Usage

There are two key points you need to interact with passkey auth:

1. Creating a passkey with register(username)
2. Authenticating with a passkey with authenticate

Note that these are functions on the snowball.auth.passkey object, so you would access them like so:

snowball.auth.passkey.register('someUsername')
snowball.auth.passkey.authenticate()