Overview
The StellarStack API uses Better Auth for session-based authentication. Authentication is handled through HTTP-only cookies for security.
Authentication Methods
Email and Password
Sign in with email and password credentials:
curl -X POST http://localhost:3001/api/auth/sign-in/email \
-H "Content-Type: application/json" \
-d '{
"email": "[email protected]",
"password": "your_password"
}'
Social OAuth Providers
StellarStack supports OAuth authentication with:
- Google - Configure with
GOOGLE_CLIENT_ID and GOOGLE_CLIENT_SECRET
- GitHub - Configure with
GITHUB_CLIENT_ID and GITHUB_CLIENT_SECRET
- Discord - Configure with
DISCORD_CLIENT_ID and DISCORD_CLIENT_SECRET
OAuth providers are only enabled when the corresponding environment variables are configured.
Passkeys (WebAuthn)
StellarStack supports passwordless authentication using passkeys. Configure the relying party:
PASSKEY_RP_ID
string
default:"localhost"
Passkey relying party identifier (your domain)
FRONTEND_URL
string
default:"http://localhost:3000"
Frontend origin for passkey authentication
Two-Factor Authentication
Enhance account security with 2FA:
- TOTP - Time-based one-time passwords (Google Authenticator, Authy)
- Email OTP - One-time codes sent via email
Session Management
After successful authentication, Better Auth creates a session and returns a session token in an HTTP-only cookie:
Set-Cookie: better-auth.session_token=<token>; HttpOnly; Secure; SameSite=Lax
Using Sessions
Include the session cookie in subsequent requests:
curl http://localhost:3001/api/servers \
-H "Cookie: better-auth.session_token=<session_token>"
Getting Current Session
Check your current session status:
curl http://localhost:3001/api/auth/get-session \
-H "Cookie: better-auth.session_token=<session_token>"
{
"user": {
"id": "user_123",
"email": "[email protected]",
"name": "John Doe",
"role": "user"
},
"session": {
"token": "<session_token>",
"expiresAt": "2026-03-08T12:00:00.000Z"
}
}
WebSocket Authentication
For WebSocket connections, you can obtain a short-lived token:
curl http://localhost:3001/api/ws/token \
-H "Cookie: better-auth.session_token=<session_token>"
{
"token": "<ws_token>",
"userId": "user_123"
}
User Roles
StellarStack implements role-based access control:
Full system access, can manage all resources and settings
Standard user access, can manage own servers and resources
Limited access to shared servers only
First-Time Setup
If no users exist in the system, create the initial admin account:
curl -X POST http://localhost:3001/api/setup \
-H "Content-Type: application/json" \
-d '{
"name": "Admin User",
"email": "[email protected]",
"password": "secure_password"
}'
{
"success": true,
"user": {
"id": "user_123",
"name": "Admin User",
"email": "[email protected]",
"role": "admin"
},
"message": "Admin account created successfully"
}
Password Recovery
For systems with the ADMIN_RECOVERY_KEY environment variable configured, reset user passwords:
curl -X POST http://localhost:3001/api/admin/reset-password \
-H "Content-Type: application/json" \
-d '{
"email": "[email protected]",
"newPassword": "new_secure_password",
"recoveryKey": "your_recovery_key"
}'
The recovery key should be kept secret and only used for emergency password resets.
Password Hashing
StellarStack uses bcrypt for password hashing, which is:
- Industry-standard and battle-tested
- Compatible with SFTP authentication
- Secure with appropriate work factors
Passwords must be at least 8 characters long.
Email Verification
In production environments (NODE_ENV=production), email verification is required for new accounts. Users receive a verification email after signup.
Sign Out
End the current session:
curl -X POST http://localhost:3001/api/auth/sign-out \
-H "Cookie: better-auth.session_token=<session_token>"