vspaz / jsondiff

jsondiff is a json diff utility. It can compare two JSON files, using strings, prefixes, or regex to filter required/optional fields, and apply relative or absolute precision tolerance per each numeric field or globally; prints the diff between 2 json files. It can optionally accept a config with required or optional fields.

jsondiff

yet another jsondiff utility helpful for data analysis.

unlike other json diff utilities:

• it's possible to skip the fields that you are not interesting for analysis.
• one can choose only required fields
• the jsondiff utility compares numeric values using relative or absolute precision tolerance e.g. 1e-03 or 0.001, which can be set globally or per field.
• it's possible to use field prefixes or regexes to filter out fields.
• there's an optional config (see below) when dealing with a large number of fields.
• jsondiff requires no 3d party modules.

NOTE: there's also an experimental WIP version implemented in C & Cython.

install

git clone [email protected]:vspaz/jsondiff.git
cd jsondiff
python3 setup.py install

config (optional)

{
  "required": [],
  "skipped": [
    "barbaz"
  ],
  "tolerance": {
    "default": 1e-09,
    "fields": {
      "foo": 0.01,
      "baz": 0.1
    }
  }
}

jsondiff -f1 tests/data/file_1.json -f2 tests/data/file_2.json -c tests/data/config.json  # -> {}, as field "barbaz" is skipped in the config.

or

jsondiff -f1 tests/data/file_1.json -f2 tests/data/file_2.json  #  -> {'baz': {'barbaz': [90, 80]}}  # no fields are skipped

run tests

git clone [email protected]:vspaz/jsondiff.git
cd jsondiff
pip install -r requirements/dev.txt
make test