Constellation DX API focuses on view-based authoring and requires that your application uses the React-based UI runtime. Learn how to access, use, and successfully implement DX APIs in your application.DX APIs provide UI metadata that helps you develop a seamless user experience within your chosen front-end framework, while using the power of Pega’s Case Management capability. The difference between a DX API and a traditional API is that the Case or assignment UX information in the DX API’s response includes information on UI elements, layout, actions, and styling.Constellation DX API improves upon Traditional DX API by providing a significantly different approach that optimizes the number of messages (chattiness) and their structure. However, only applications that use the new view-based approach can fully benefit from Constellation DX APIConstellation DX API supports multiple access groups on an operator because the application name is included in the URL after the /app/ part. For example:https://agilestudio.pega.com/prweb/AgileStudio/app/agilestudio/api/application/v2/mention_typesIn this URL, agilestudio is the name of the app. When a request reaches the server and is authenticated, Constellation identifies the first access group listed in the Operator ID that matches the application. As a result, Operator IDs containing multiple access groups connected to the same application are not supported.