hnnp-sdk 0.1.1

HNNP Python SDK

HNNP Python SDK

This directory contains the official Python SDK for interacting with the HNNP Cloud backend. It provides a simple, clean API client plus webhook verification utilities.

All behavior MUST strictly follow: protocol/spec.md

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Features

• REST API client (requests-based)
• Webhook signature verification
• Typed dataclasses for events, links, sessions
• Error handling and pagination helpers

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Installation

pip install hnnp-sdk

Requires: Python 3.9+ and requests.

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Usage Example

from hnnp_sdk import HnnpClient

client = HnnpClient( api_key="YOUR_API_KEY_OR_ORG_TOKEN", org_id="org_123", base_url="https://api.hnnp.example", return_models=True )

If you prefer raw JSON dictionaries, set return_models=False.

events = client.list_events()

client.link_presence_session( presence_session_id="psess_001", user_ref="emp_45" )

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Webhook Verification

from hnnp_sdk import verify_webhook_signature

is_valid = verify_webhook_signature( secret=webhook_secret, timestamp=timestamp_header, raw_body=raw_body_bytes, signature_hex=signature_header, )

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Flask Webhook Example

import os
from flask import Flask, request, jsonify
from hnnp_sdk import verify_webhook_signature

app = Flask(__name__)

WEBHOOK_SECRET = os.environ["WEBHOOK_SECRET"]

@app.route("/hnnp/webhook", methods=["POST"])
def hnnp_webhook() -> "tuple[dict, int]" | "tuple[dict, int, dict]":
    signature = request.headers.get("X-HNNP-Signature", "")
    timestamp = request.headers.get("X-HNNP-Timestamp", "")
    raw_body = request.get_data()  # bytes

    if not verify_webhook_signature(WEBHOOK_SECRET, timestamp, raw_body, signature):
        return jsonify({"error": "invalid_webhook_signature"}), 400

    # At this point, request.json is trusted HNNP payload
    print("Received HNNP webhook:", request.json)
    return jsonify({"status": "ok"}), 200

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FastAPI Webhook Example

import os
from fastapi import FastAPI, Request, HTTPException
from hnnp_sdk import verify_webhook_signature

app = FastAPI()
WEBHOOK_SECRET = os.environ["WEBHOOK_SECRET"]

@app.post("/hnnp/webhook")
async def hnnp_webhook(request: Request):
    signature = request.headers.get("X-HNNP-Signature", "")
    timestamp = request.headers.get("X-HNNP-Timestamp", "")
    raw_body = await request.body()  # bytes

    if not verify_webhook_signature(WEBHOOK_SECRET, timestamp, raw_body, signature):
        raise HTTPException(status_code=400, detail="invalid_webhook_signature")

    payload = await request.json()
    print("Received HNNP webhook:", payload)
    return {"status": "ok"}

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Methods

client.list_receivers() client.create_receiver(...) client.update_receiver(...) client.list_events() client.list_sessions() client.list_links() client.create_link(...) client.link_presence_session(presence_session_id, user_ref) client.activate_link(link_id) client.revoke_link(link_id) client.unlink(link_id) # alias for revoke_link

Extended org console APIs (requires org admin auth)

client.list_orgs(...) client.get_org(org_id) client.get_org_settings(org_id) client.update_org_settings(org_id, settings) client.get_org_config(org_id) client.update_org_config(org_id, config) client.get_org_metrics_realtime(org_id, params) client.list_org_users(org_id)

client.list_org_sessions(...) client.get_org_sessions_summary(...) client.create_org_session(payload) client.update_org_session(session_id, payload) client.delete_org_session(session_id) client.finalize_org_session(session_id)

client.get_presence_live(...) client.get_presence_logs(...) client.get_presence_events(...) client.list_locations() client.list_groups() client.create_group(payload) client.update_group(group_id, payload) client.delete_group(group_id) client.get_attendance(...) client.export_attendance_csv(...)

client.get_billing_summary() client.list_invoices() client.get_invoice_pdf(invoice_id)

client.list_incidents(...) client.get_incident(incident_id) client.get_incident_rollcall(incident_id) client.get_safety_status() client.get_safety_summary()

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Typed models

Dataclasses are available in hnnp_sdk.types for receivers, events, sessions, billing, incidents, and safety summaries.

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File Structure

hnnp_sdk/ client.py http.py webhook.py types.py init.py

tests/ test_client.py test_webhook.py

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Environment Variables (optional)

WEBHOOK_SECRET=your_org_webhook_secret

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Notes

• HMAC verification MUST use exact rules defined in Section 10.3 of spec.md (v2).
• All network calls MUST use HTTPS
• Must not alter any packet format or cryptographic behavior
• Some endpoints require an org admin JWT (org console auth) instead of an API key.

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Pagination helpers

for evt in client.iterate_events(org_id="org_123"):
    print(evt.id)

for sess in client.iterate_sessions(org_id="org_123"):
    print(sess.session_id)

for rcv in client.iterate_receivers(org_id="org_123"):
    print(rcv.receiver_id)

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Rate limiting

The client retries on 5xx and 429 responses with exponential backoff.
If Retry-After is provided, it is respected (up to 30s).

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Testing

python -m pytest -q

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Reference

Full protocol: ../../protocol/spec.md