ajar-connector (Python)

The Python SDK for building byte-compatible connectors to Ajar. Types are generated from the same vendored event.proto as the Rust/Go/C++ SDKs, so this SDK reproduces the same golden vectors.

Try the template in 10 seconds

cd python
pip install -e .                     # or: pip install protobuf cryptography
echo '{"lat":26.4,"lon":50.9,"alt_m":11000,"quality":0.9}' \
  | PYTHONPATH=. python examples/connector_template.py --dry-run
# -> 019e... -> ajar.ingest.demo-connector (196 sealed bytes)  [dry-run]

You just built and signed a canonical Ajar event. To make it yours, edit the one function marked EDIT in examples/connector_template.py.

Use it in code

from ajar_connector import EventBuilder, canonical_bytes, seal, SigningKey

event = (
    EventBuilder("acme-radar-1", "mim:aircraft")
    .new_id().now()
    .location(26.4, 50.9, 11000.0)
    .confidence(0.94)
    .build()
)
sealed = seal(canonical_bytes(event), SigningKey.from_seed(my_seed))  # 64-byte sig ++ canonical

Run the checks

cd python
python -m pytest                                   # unit tests
PYTHONPATH=. python conformance/golden_vectors.py   # the byte-compat gate

Streaming example

pip install -e ".[examples]"                        # adds nats-py
PYTHONPATH=. python examples/synthetic_radar.py      # publish to a local Core
PYTHONPATH=. python examples/synthetic_radar.py --dry-run --ticks 3   # no infra

See the full onboarding guide for data flow, deployment topology, key generation, and troubleshooting.

The conformance gate and --dry-run need only protobuf + cryptography. nats-py is an examples extra, kept out of the SDK's core dependencies.

Development Status
- 4 - Beta
Intended Audience
- Developers
Programming Language
- Python :: 3
Topic
- Software Development :: Libraries
- System :: Networking

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

ajar_connector-0.5.7.tar.gz (10.8 kB view details)

Uploaded Aug 29, 2026 Source

Built Distribution

If you're not sure about the file name format, learn more about wheel file names.

The dropdown lists show the available interpreters, ABIs, and platforms. Enable javascript to be able to filter the list of wheel files.

ajar_connector-0.5.7-py3-none-any.whl (9.8 kB view details)

Uploaded Aug 29, 2026 Python 3

File details

Details for the file ajar_connector-0.5.7.tar.gz.

File metadata

Download URL: ajar_connector-0.5.7.tar.gz
Upload date: Aug 29, 2026
Size: 10.8 kB
Tags: Source
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/7.0.0 CPython/3.13.14

File hashes

Hashes for ajar_connector-0.5.7.tar.gz
Algorithm	Hash digest
SHA256	`4ed70f25938f22685fe3a1c7168b7724da37d07360497cd45a2ee138f861a328`
MD5	`f6bad713b5504e1907061d62eb051348`
BLAKE2b-256	`7196278d114d623b9cf1e06d525397d5cfd5e4a5be1535de7f1ea1ff639bbb37`

See more details on using hashes here.

Provenance

The following attestation bundles were made for ajar_connector-0.5.7.tar.gz:

Publisher: publish-python.yml on promaka/ajar-connectors

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: ajar_connector-0.5.7.tar.gz
- Subject digest: 4ed70f25938f22685fe3a1c7168b7724da37d07360497cd45a2ee138f861a328
- Sigstore transparency entry: 2636881628
- Sigstore integration time: Aug 29, 2026
Source repository:
- Permalink: promaka/ajar-connectors@0af528aad86016cfcd0fb9e80ee14b4999dd3a5b
- Branch / Tag: refs/tags/v0.5.7
- Owner: https://github.com/promaka
- Access: public
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: publish-python.yml@0af528aad86016cfcd0fb9e80ee14b4999dd3a5b
- Trigger Event: push