Fields
fields is a CSV of columns to include in the result. This parameter supports dot notation to request nested relational fields. You can also use a wildcard (*) to include all fields at a specific depth.
Examples
# Get all top-level fields
?fields=*
# Get all top-level fields and all second-level relational fields
?fields=*.*
# Get all top-level fields and second-level relational fields within images
?fields=*,images.*
# Get only the first_name and last_name fields
?fields=first_name,last_name
# Get all top-level and second-level relational fields, and third-level fields within images.thumbnails
?fields=*.*,images.thumbnails.*