Filtering with empty value

[tameroski]

json/contenttype?filter[field]= returns all entries instead of entries with field value empty. Not sure this is the desired behaviour, is it ?

[xiaohutai]

I'm not entirely sure if it should work like that, maybe try ?filter[field]=! instead?

Edit: No never mind what I said, that's only for checking non-empty. I don't think you can filter for empty values.

[xiaohutai]

Leaving this ticket open so that others may see.

JSON API does not support this (issue might be outdated) and as far as I know, Bolt doesn't either.

I think the problem is then empty string vs null.

Depending on what you want, you can:

• Query them all and then filter it on your service.
• An extension that listens to a save event, and then sets a (hidden) field to something that can be for querying.

[jimcue]

Looks like it might be an option now?
json-api-dotnet/JsonApiDotNetCore#387