trac3r00 JSON Diff
diff on JSON is useless — one reordered key and everything flags. This
parses both documents and reports what actually changed, by path.
Commands
python3 scripts/json_diff.py old.json new.json
python3 scripts/json_diff.py a.json b.json --json
python3 scripts/json_diff.py expected.json actual.json --max-changes 0
curl -s api/v1/config | python3 scripts/json_diff.py - prod-config.json
Output
~ port: 8080 -> 9090
+ db.ssl: true
- legacy_mode: false
~ tags: array[2] -> array[3]
Paths use dot notation for objects (db.host) and brackets for arrays
(items[2]). --max-changes N makes it a CI gate: exit 1 when the count
exceeds N (use 0 for "must be identical").
Pairs with
env-gate (config completeness), api-tester (fetch the JSON this diffs),
verification-before-completion (the discipline that makes you run it).