Send BindingResult Errors in ResponseEntityExceptionHandler [SPR-13183]

[spring-projects-issues]

Chris Bonham opened SPR-13183 and commented

I propose adding the BindingResult errors in the entity response for these ResponseEntityExceptionHandler methods:

• handleBindException()
• handleMethodArgumentNotValid()

This will give the RESTful API caller more information when a 400 status is received.

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Affects: 4.2 RC2

Issue Links:

• Provide a standard exception hierarchy for REST end points [SPR-12531] #17136 Provide a standard exception hierarchy for REST end points

[spring-projects-issues]

Chris Bonham commented

I have created pull request #831 for this enhancement.

I have also signed the SpringSource CLA.

[spring-projects-issues]

Rossen Stoyanchev commented

What you've proposed is one option for what goes in the body of an error response but there can be many others. For most REST APIs we expect some kind of JSON error response along the lines of what's discussed in #17136. This is why ResponseEntityExceptionHandler is an abstract base class. The idea is that your sub-class will decide what goes in the body. In short your PR is a perfectly valid choice for an application. It's just not something we want to do by default for all applications.