libipld 3.0.0

Python binding to the Rust IPLD library

Python IPLD

This project aims to speed up The AT Protocol SDK by using Rust for the heavy lifting. Only atproto related parts are implemented first.

Code snippet:

import libipld

# CID
print(libipld.decode_cid('bafyreig7jbijxpn4lfhvnvyuwf5u5jyhd7begxwyiqe7ingwxycjdqjjoa'))
# Output: {'hash': {'size': 32, 'code': 18, 'digest': b'\xdfHP\x9b\xbd\xbcYOV\xd7\x14\xb1{N\xa7\x07\x1f\xc2C^\xd8D\t\xf44\xd6\xbe\x04\x91\xc1)p'}, 'version': 1, 'codec': 113}
print(libipld.encode_cid(b'\x01q\x12 \xb6\x81\x1a\x1d\x7f\x8c\x17\x91\xdam\x1bO\x13m\xc0\xe2&y\xea\xfe\xaaX\xd6M~/\xaa\xd5\x89\x0e\x9d\x9c'))
# Output: bafyreifwqenb274mc6i5u3i3j4jw3qhcez46v7vkldle27rpvlkysdu5tq

# DAG-CBOR
print(libipld.decode_dag_cbor(b'\xa2aa\x0cabfhello!'))
# Output: {'a': 12, 'b': 'hello!'}
print(libipld.encode_dag_cbor({'a': 12, 'b': 'hello!'}))
# Output: b'\xa2aa\x0cabfhello!'

# multibase
print(libipld.decode_multibase('ueWVzIG1hbmkgIQ'))
# Output: ('u', b'yes mani !')
print(libipld.encode_multibase('u', b'yes mani !'))
# Output: ueWVzIG1hbmkgIQ

Features

• Decode DAG-CBOR (decode_dag_cbor(bytes) -> dict, decode_dag_cbor_multi(bytes) -> list[dict])
• Encode DAG-CBOR (encode_dag_cbor(obj) -> bytes)
• Decode CID (decode_cid(str | bytes) -> dict). Accepts CID stringified form or CID raw byte form.
• Encode CID (encode_cid(bytes) -> str). Encodes CID raw byte form to stringified form.
• Decode Multibase (decode_multibase(str) -> tuple[str, bytes]). Returns base and data.
• Encode Multibase (encode_multibase(str, bytes) -> str). Accepts base and data.
• Decode CAR (decode_car(bytes) -> tuple[dict, dict[bytes, dict]]). Returns a header and blocks mapped by CID. CIDs in raw byte form.

Note: a stub file will be provided in the future.

Requirements

• Python 3.8 or higher.

Installing

You can install or upgrade libipld via

pip install libipld

Contributing

Contributions of all sizes are welcome.

License

MIT