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Configuring Pega Platform for Constellation

Applicable to Cosmos React and Theme Cosmos applications

Gain access to the new run-time framework by configuring Constellation. To make your development environment compatible with Constellation, configure system settings in Pega Platform.

You do not have to configure Pega Platform for Constellation if you use Pega Cloud. In Pega Cloud, the system configures automatically during deployment.
To use Constellation in App Studio for building an application, update the component palettes and property panes with data from the Constellation service. The data is exported automatically through the REST API when you start the Docker container, but you must enable the REST API, and set up a Cosmos React UI service URL.

When you select Support React-based UI, Pega Platform generates a new cookie, Pega-AAT, to speed up stateless REST calls.

The dynamic system settings are not application specific. All nodes connected to the database with dynamic system settings inherit these settings.

Two dynamic system settings apply if you select Support React-based UI:

  • constellation/cacheReadOnlyDataPages – All read-only data pages are cached by default.
  • constellation/readOnlyDataPagesCacheSize – Enables modifying the cache size of read-only data pages.

One dynamic system setting applies if you do not select Support React-based UI:

  • constellation/cacheReadOnlyDataPages – All read-only data pages disable the custom cache size.
Review the process of implementing Constellation on your system. For more information, see Setting up the Constellation service in Pega Platform.
  1. In the navigation pane of Dev Studio, click Records.

  2. Expand the SysAdmin category, and then click Dynamic System Settings.

  3. Open the pega-uiengine!constellationsvcURL system setting.

  4. On the Settings tab, in the Value field, enter the React UI service URL:

    • For systems with load balancers, enter /prweb/constellation, and then click Save.
    • For simple systems, enter https://<localhost>:<port>/prweb/constellation, and then click Save.

      The variables have the following values:

      • <localhost> is the URL address of your host.
      • <port> is the port number used for the React UI service.
  5. Click Save.

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