For fill dummy data have to run php artisan migrate --seed

There is three users by defaul Admin, Manager and Guest.
Admin can create, delete and read posts.
Manager has the rights to delete and read posts.
Guest can only read posts.

Email and password for Admin, Manager and Guest according to
"[email protected]", "password"
"[email protected]", "password"
"[email protected]", "password"

Use file "roles-permissions.postman_collection.json" for import collection.
After login or register save Bearer Token in section roles-permissions->Authorization.