Get entries that a field value is not empty/null

[closemarketing]

Hello,
I’m using GFAPI::get_entries and I’d like to use it to get fields with value not null or empty.
How could I do it?

[sacom (Samuel Aguilera (Gravity Forms))]

You can use the Filter Operators in the following documentation: GFAPI Class - Gravity Forms Documentation

Using isnot and 'value' => '' would be a “non empty” check.