There are also various connection options here.
oData at App Gyver and MDK
However, especially with the oData, there are fewer authentication options.
Here are the MDK options for comparison
The sample app reads a barcode and outputs the item and calories. In the development environment, the final app looks like this.
A REST API was connected.
The service can be tested directly
A scheme can be directly derived from the result
Another data resource was created; here, the barcode is mapped to the input of the service.
A rule has been implemented for the button.
And so, the button opens the scanner, and, with the scanned number, the service is accessed, and the result is then recorded. The app’s output fields then access the entity and display the value.
For testing purposes, the app “SAP AppGyver Preview” can be installed from the app stores. In the app, the app’s QR code is then scanned and can then be tested directly.
The determined data are correct.