Extract screen validation so it can also be used in other programs

Hello,

We have a client screen with the program behind it to do the validation and such. A normal RPGLE progam ;-).

But, as things become a bit more modern, we can get client information from other ways than just input via the screen. Via a webform, JSON file, ...

In order not to write the same validations everytime, we would like to make a seperate validation program that's used by each of these input methods.

Has anyone done anything like this before?
If so, how did you approach this? How do you give the errors back and how do you handle them to show the correct errors on the screen...

Kind regards,
Frederik




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