Get information from REST API and use in UI designer form
You are going to show data coming from variables in your UI Designer form or page some of your variables are defined with the contract while developping in Bonita Studio. But you can also define directly other variables in UI Designer directly, such as External API, and use them to fetch your external data.
As you can see in the image below, when adding your variable you select "External API" and you add the API URL. You have examples of API provided, but you can also develop your own REST API extension in Bonita Studio Development menu.
You can find more details in Bonita Documentation .