canonicaljson-rs

Python package leveraging our Canonical JSON implementation in Rust.

In order to validate content signatures of our data, Canonical JSON gives us a predictable JSON serialization. And Rust allows us to reuse the same implementation between our server in Python (this package) and our diverse clients (Rust, Android/iOS, JavaScript).

Usage

pip install canonicaljson-rs

>>> import canonicaljson
>>>
>>> canonicaljson.dumps({"héo": 42})
'{"h\\u00e9o":42}'

• canonicaljson.dumps(obj: Any) -> str
• canonicaljson.dump(obj: Any, stream: IO) -> str

Development

We rely on a specific Python builder that automates everything around Rust bindings.

pip install maturin

In order to install the package in the current environment:

maturin develop

Run tests:

pytest

Release

1. Create a release on Github on https://github.com/mozilla-services/python-canonicaljson-rs/releases/new
2. Create a new tag vX.Y.Z (This tag will be created from the target when you publish this release.)
3. Generate release notes
4. Publish release

See Also

• https://github.com/gibson042/canonicaljson-spec
• The code to build a serde_json::Value from a pyo3::PyObject was greatly inspired by Matthias Endler's hyperjson

Other specs:

• https://github.com/Kinto/kinto-signer/blob/6.1.0/kinto_signer/canonicaljson.py
• https://searchfox.org/mozilla-central/rev/b2395478c/toolkit/modules/CanonicalJSON.jsm
• https://github.com/matrix-org/python-canonicaljson

License

• Mozilla Public License 2.0