Merge two JSON objects jq

Select non-null fields jq '[.[] | select(.value != null)]' data.json Group by field jq 'group_by(.status) | map({status: .[0].status, count: length})' data.json Flatten nested array jq 'flatten(1)' nested.json Convert array to object (index_by) jq 'INDEX(.[]; .id)' items.json Merge two objects jq -s '.[0] * .[1]' base.json override.json