How to get list of all devices and display on the UI in custom widget
have a look at this web development tutorial series, if you want to learn how you can develop a custom widget and query data from Cumulocity using its APIs. If you want to see additional examples for widgets or specific queries for Cumulocity’s API, you can use the @c8y/cli package and instantiate the tutorial application by running
c8ycli new <<your-app-name>> tutorial or selecting
tutorial as the base project in the prompt.