Overview

Providers define how users authenticate. They encapsulate login, registration, and session logic for strategies like credentials, passkeys, magic links, and custom flows.

Usage


import { AuthKit } from "@astra-void/au/th-kit";
import { CredentialProvider, PasskeyProvider } from "@astra-void/auth-kit/providers";
import { PrismaAdapter } from "@astra-void/auth-kit/adapters";
 
export const handler = AuthKit({
  adapter: PrismaAdapter(prisma),
  providers: [
    CredentialProvider(),
    PasskeyProvider({ ... })
  ]
});

Client calls like login("credential") or register("passkey") map directly to the corresponding provider.

Built-in Providers

Credential

Email + password authentication.


CredentialProvider()

Compatible with bcrypt, argon2, etc.
No config required

Passkey

WebAuthn-based passwordless login.


PasskeyProvider({
  rpId: "localhost",
  rpName: "Your App",
  mode: "email", // or "credential"
  challengeStore: RedisChallengeStore(redis)
})

Biometric/device authentication
Requires challenge store (memory or Redis)
See Passkey Guide

Magiclink

One-time login link sent via email.


MagiclinkProvider()

Requires SMTP setup and adapter methods for token handling
See Magiclink Guide

Custom Provider

You can build your own:


const MyProvider = {
  name: "my-custom",
  type: "email",
  authorize: async ({ token }) => getUser(token),
  register: async ({ email }) => createUser(email)
};