How can i filter for null/empty values in Strapi 3?

Questions and Answers
1
System Information
  • Strapi Version: 3.6
  • Operating System: Mac
  • Database: MySQL
  • Node Version: 14
  • NPM Version: 12
  • Yarn Version: 12

update: i was talking about the admin filters not the query one

got the solution working like this:
&_where[0][<field_name>_null]=ture/false

2

GET /users?firstName_null=true