Hi @HemaR16948231,

he Pega DX API acts as a bridge between Pega's data models and user interfaces

The DX API uses the REST (REpresentational State Transfer) architectural style, helps us to communication using standard HTTP methods GET, POST, PUT.

DX API endpoints primarily return two types of information:

• Data: This includes the actual data associated with the Pega case or work object being displayed.
• UI Metadata: This contains information about how the UI should be rendered, including layout, component properties, and user interactions.

The Constellation DX API is a specific implementation of the DX API designed to work seamlessly with Pega's out-of-the-box Constellation UI framework. This framework offers a modern, React-based approach to building UIs within Pega applications. Constellation DX API empower Pega developers to build interactive UI.

Regards,

Prasad.