$ echo '[ {"node1": "foo1", "node2": "bar1"}, {"node1": "foo2", "node2": "bar2"}]' | jq -r '
  [
    path(..) | map(select(type == "string") // "[]")
    | join(".")
  ] | sort | unique | .[] | split(".[]") | join("[]") | "." + .
  '
.
.[]
.[].node1
.[].node2

jqrepl /tmp/bw.json                                             13:06:51
set: Unknown option “-f”

~/.local/share/omf/pkg/jq-fish-plugin/functions/jqrepl.fish (line 3): 
  set -f input (string trim "$argv[1]")
  ^
in function 'jqrepl' with arguments '/tmp/bw.json'

(Type 'help set' for related documentation)
set: Unknown option “-f”

~/.local/share/omf/pkg/jq-fish-plugin/functions/jqrepl.fish (line 7): 
    set -f input (mktemp)
    ^
in function 'jqrepl' with arguments '/tmp/bw.json'

(Type 'help set' for related documentation)
~/.local/share/omf/pkg/jq-fish-plugin/functions/jqrepl.fish (line 9): Invalid redirection target: 
    cat /dev/stdin > $input
                   ^
in function 'jqrepl' with arguments '/tmp/bw.json'

.