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# `MastraAuthNeon` and `MastraRBACNeon`

[`MastraAuthNeon`](https://github.com/mastra-ai/mastra/tree/main/auth/neon) connects Mastra authentication to [Neon Auth](https://neon.com/docs/guides/neon-auth). It authenticates JWT bearer tokens with Neon Auth's JWKS endpoint and falls back to validating Neon Auth session cookies through its session API. The provider also supports email-and-password sign-in, sign-up, and session management.

`MastraRBACNeon` maps Neon Auth organization roles to Mastra permissions. Register it separately when your application uses Neon Auth organization memberships for role-based access control.

## Usage

```typescript
import { Mastra } from '@mastra/core/mastra'
import { MastraAuthNeon, MastraRBACNeon } from '@mastra/auth-neon'

const auth = new MastraAuthNeon()

const rbac = new MastraRBACNeon({
  roleMapping: {
    admin: ['*'],
    member: ['agents:read', 'workflows:read'],
    _default: [],
  },
})

export const mastra = new Mastra({
  server: {
    auth,
    rbac,
  },
})
```

Set `NEON_AUTH_BASE_URL` to your Neon Auth service URL. You can also pass `baseUrl` directly to both constructors.

## `MastraAuthNeon`

### Constructor parameters

The `MastraAuthNeon` constructor accepts an optional `MastraAuthNeonOptions` object.

**baseUrl** (`string`): Neon Auth service URL. Falls back to the NEON\_AUTH\_BASE\_URL environment variable. Trailing slashes are removed.

**jwksUrl** (`string`): JWKS endpoint used to verify bearer tokens. Falls back to NEON\_AUTH\_JWKS\_URL, then \<baseUrl>/auth/jwks.

**sessionCookieName** (`string`): Name of the Neon Auth session cookie. Defaults to neonauth.session\_token.

**signUpEnabled** (`boolean`): Whether credentials-based sign-up is enabled. Defaults to true.

**name** (`string`): Provider name. Defaults to neon.

**authorizeUser** (`AuthorizeUserFn<NeonAuthUser>`): Custom authorization function called after authentication.

**mapUserToResourceId** (`(user: NeonAuthUser) => string | undefined | null`): Maps an authenticated user to a Mastra memory resource ID.

**protected** (`MastraAuthConfig['protected']`): Routes that require authentication.

**public** (`MastraAuthConfig['public']`): Routes that do not require authentication.

### Environment variables

**NEON\_AUTH\_BASE\_URL** (`string`): Default Neon Auth service URL when baseUrl is not passed to the constructor.

**NEON\_AUTH\_JWKS\_URL** (`string`): Default JWKS endpoint when jwksUrl is not passed to the constructor.

### Authentication methods

#### `authenticateToken()`

```typescript
await auth.authenticateToken(token, request)
```

Verifies the token as a JWT with the configured JWKS endpoint. If JWT verification fails, the provider validates it as a Neon Auth session token through the session API. Returns the authenticated `NeonAuthUser`, or `null` when neither method succeeds.

#### `authorizeUser()`

```typescript
await auth.authorizeUser(user, request)
```

Runs the configured custom authorization function when one is provided. Otherwise, it requires a Neon Auth user ID and rejects expired JWT payloads.

### Credentials methods

#### `signIn()`

```typescript
const result = await auth.signIn(email, password, request)
```

Authenticates email-and-password credentials through Neon Auth. Returns the authenticated user, optional token, and response cookies.

#### `signUp()`

```typescript
const result = await auth.signUp(email, password, name, request)
```

Creates a Neon Auth account using email-and-password credentials. `name` is optional; when omitted, the provider derives a display name from the email address. Returns the authenticated user, optional token, and response cookies.

#### `isSignUpEnabled()`

```typescript
const enabled = auth.isSignUpEnabled()
```

Returns the configured `signUpEnabled` value.

### Session methods

#### `createSession()`

```typescript
const session = await auth.createSession(userId, metadata)
```

Creates a normalized Mastra session with a generated ID and a seven-day expiration without creating a remote Neon Auth session.

#### `validateSession()`

```typescript
const session = await auth.validateSession(sessionId)
```

Validates a Neon Auth session token and returns a normalized Mastra session, or `null` when the session is invalid.

#### `refreshSession()`

```typescript
const session = await auth.refreshSession(sessionId)
```

Validates the session through Neon Auth. Neon Auth refreshes sessions automatically when its configured update interval is reached.

#### `destroySession()`

```typescript
await auth.destroySession(sessionId)
```

Completes without a remote request. Neon Auth handles session destruction through its sign-out endpoint, while `getClearSessionHeaders()` returns the headers used to clear local session cookies.

## `MastraRBACNeon`

### Constructor parameters

The `MastraRBACNeon` constructor accepts a `MastraRBACNeonOptions` object.

**roleMapping** (`RoleMapping`): Maps Neon Auth role names to Mastra permission patterns. Use \_default to define permissions for unmapped roles.

**baseUrl** (`string`): Neon Auth service URL. Falls back to the NEON\_AUTH\_BASE\_URL environment variable. Trailing slashes are removed.

**organizationId** (`string`): Restricts membership lookup to one Neon Auth organization.

**getUserRoles** (`(user: EEUser) => Promise<string[]> | string[]`): Custom function for extracting role names. When omitted, the provider fetches organization memberships from Neon Auth.

**cache** (`{ ttlMs?: number; maxSize?: number }`): Role lookup cache configuration. The defaults are 30,000 ms and 1,000 entries.

### Methods

#### `getRoles()`

```typescript
const roles = await rbac.getRoles(user)
```

Returns roles from the configured `getUserRoles` function, the user's JWT `role` claim, or Neon Auth organization memberships. When `organizationId` is set, only memberships for that organization are considered.

#### `hasRole()`

```typescript
const allowed = await rbac.hasRole(user, 'admin')
```

Checks whether the user has the requested role.

#### `getPermissions()`

```typescript
const permissions = await rbac.getPermissions(user)
```

Resolves the user's roles through `roleMapping` and returns Mastra permission patterns.

#### `hasPermission()`

```typescript
const allowed = await rbac.hasPermission(user, 'agents:read')
```

Checks whether the resolved permissions allow the requested permission.

#### `hasAllPermissions()` and `hasAnyPermission()`

```typescript
const canReadAndRun = await rbac.hasAllPermissions(user, ['agents:read', 'agents:execute'])
const canReadAnything = await rbac.hasAnyPermission(user, ['agents:read', 'workflows:read'])
```

Checks whether the user has all or at least one of the requested permissions.

#### `getAvailableRoles()`

```typescript
const roles = await rbac.getAvailableRoles()
```

Returns the configured role names except `_default`.

#### `getRolePermissions()`

```typescript
const permissions = await rbac.getRolePermissions('member')
```

Resolves the permission patterns configured for a role.

## Related

- [Authentication overview](https://mastra.ai/docs/auth/overview)
- [Custom authentication providers](https://mastra.ai/docs/auth/custom-auth-provider)
- [Role-based access control](https://mastra.ai/reference/auth/fga)
- [Source code](https://github.com/mastra-ai/mastra/tree/main/auth/neon)