CODEWITHSUNDEEP
bean-validationopen-liberty
Geoff Alexander
Geoff Alexander

Reputation: 502

How can I return a custom reponse for a bean validation error under Open Liberty?

We are using beanValidation-2.0 and cdi-2.0 under Open Liberty 20.0.0.3. This works fine in that Open Liberty returns a 400 Bad Request response containing the bean validation error message when a a bean validation error is detected. I would like to update our application to instead return a custom response when Open Liberty detects a bean validation error. Is there a way that I can somehow "intercept" the bean validation error (or the Open Liberty generated response) and return my own custom response?`

Upvotes: 0

Views: 197

Answers (2)

Azquelt
Azquelt

Reputation: 1495

Usually when you get a validation error, a ConstraintViolationException is thrown and you should be able to catch that and create your own response.

If you're using JAX-RS, you might want to do this by creating and registering an ExceptionMapper to handle this type of exception and turn it into a response. There's an example here.

Upvotes: 1

njr
njr

Reputation: 3484

You might be able to do this with a custom MessageInterpolator. It can be specified via the message-interpolator element of validation.xml.

Upvotes: 0

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