Aura Auth

Spotify Authorization Provider

Add Spotify authorization provider to Aura Auth to authenticate and authorize

Spotify

Set up the Spotify authorization provider in your Aura Auth instance.


What you'll build

Through this quick start guide you are going to learn and understand the basics and how to set up the Spotify provider for Aura Auth.


Spotify OAuth App

Register the Application

The first step is to create and register an OAuth App on the Spotify developer console to obtain access to the user's resources.

  1. Navigate to the Spotify Developer Dashboard.
  2. Click Create app.
  3. Fill in the App name, App description, and redirect URI: http://localhost:3000/auth/callback/spotify.
    • (Make sure to replace localhost:3000 with your production domain when deploying)
  4. Agree to the Terms of Service and click Save.
  5. Once saved, click on the Settings button for your newly created app.
  6. Here, you will find and be able to copy your Client ID and view your Client Secret.

Installation

Install the package using a package manager like npm, pnpm, or yarn:

npm install @aura-stack/auth

Environment setup

Now, you must configure the environment variables required by Aura Auth, including the Spotify credentials and the encryption secrets.

.env
# Aura Secrets
AURA_AUTH_SECRET="your-32-byte-secret"
AURA_AUTH_SALT="your-32-byte-salt"

# Spotify Credentials
AURA_AUTH_SPOTIFY_CLIENT_ID="your_spotify_client_id"
AURA_AUTH_SPOTIFY_CLIENT_SECRET="your_spotify_client_secret"

CRITICAL SECURITY WARNING: The AURA_AUTH_SECRET and AURA_AUTH_SALT variables are used to encrypt and sign user sessions. These MUST be securely generated, highly randomized strings consisting of at least 32 bytes to ensure adequate entropy. Never hardcode these values in your repository. Use a secure generator (like openssl rand -base64 32) to create them, and store them exclusively in your secure environment variables manager.

Configure the Auth Instance

Configure the createAuth instance inside an auth.ts file located at the root of your project. Ensure you explicitly export the handlers, api, and jose objects.

auth.ts
import { createAuth } from "@aura-stack/auth"

export const auth = createAuth({
  oauth: ["spotify"],
})

// Extract the required utilities
export const { handlers, api, jose } = auth

The handlers object contains mapping utilities for standard HTTP methods (GET, POST, PATCH) as well as a unified ALL handler. This allows you to easily mount the authentication routes across any framework (Next.js, Elysia, Express, etc.).

Customizing the OAuth Provider

If you need to define custom scopes, change the response type, or map profile data differently, you can use the provider's factory function instead of a simple string identifier.

auth.ts
import { createAuth } from "@aura-stack/auth"
import { spotify } from "@aura-stack/auth/oauth/spotify"

export const auth = createAuth({
  oauth: [
    spotify({
      authorize: {
        params: {
          // Override default scopes
          scope: "user-read-email",
        },
      },
    }),
  ],
})

export const { handlers, api, jose } = auth

Sign In to Spotify (Client & Server)

There are multiple ways to trigger the sign-in flow depending on your ecosystem.

Sign-in Path (Direct Navigation)

The common route to trigger the auth flow natively without needing a client library is simply navigating the browser to: http://localhost:3000/auth/signIn/spotify


Client-Side (React, Vue, etc.)

You can utilize the createAuthClient utility to programmatically trigger sign-ins. You can also define a redirectTo destination.

Constraint Rule: The baseURL passed into createAuthClient MUST exactly match the root domain and path where the HTTP handlers expose their endpoints on the server.

components/Login.tsx
import { createAuthClient } from "@aura-stack/auth/client"

export const authClient = createAuthClient({
  baseURL: "http://localhost:3000/auth",
})

const triggerSignIn = async () => {
  await authClient.signIn("spotify", {
    redirectTo: "/dashboard",
  })
}

Server-Side (Next.js Actions, Remix Loaders, etc.)

For environments supporting server-side actions, use the programmatic api.signIn method securely.

actions.ts
import { api } from "./auth"

export const serverSignIn = async () => {
  const response = await api.signIn("spotify", {
    redirectTo: "http://localhost:3000/dashboard",
  })

  // Example returning redirect location
  return response.headers.get("Location")
}

Session Retrieval

After a user successfully signs in, you can retrieve their session data securely.

Client-Side:

const session = await authClient.getSession()
console.log(session?.user) // The authenticated user profile

Server-Side:

// Note: You must pass the native Web Request object or Headers!
const session = await api.getSession(request)
console.log(session?.user) // Safely retrieved backend session

Resources

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