# Shared

## Domain Types

### API Key Reference

- `APIKeyReference`

  A reference to an API key with basic identifying information

  - `apiKeyId: string`

    Unique API key identifier (UUIDv4 format)

  - `description: string`

    Human-readable description of the API key

  - `isViewerEnabled?: boolean`

    Whether this API key has access to the Viewer product

### Express Customer Reference

- `ExpressCustomerReference`

  A reference to an Express customer with basic identifying information

  - `expressCustomerId: string`

    Unique Express customer identifier. Format: cus_{32-hex-chars}

  - `expressCustomerName: string`

    Name of the Express customer

### User Reference

- `UserReference`

  A reference to a user with basic identifying information

  - `email: string`

    User's email address

  - `userId: string`

    Unique user identifier. Format: usr_{32-hex-chars}

  - `firstName?: string`

    User's first name

  - `lastName?: string`

    User's last name

  - `middleName?: string`

    User's middle name

  - `suffix1?: string`

    Name suffix (e.g., 'MD', 'Jr.')

  - `suffix2?: string`

    Additional name suffix