pycityvisitorparking 0.5.5

Async integration layer between Home Assistant and Dutch municipal visitor parking APIs.

pyCityVisitorParking

Async integration layer between Home Assistant and Dutch municipal visitor parking APIs.

Status

This package ships the core client, provider interface, and discovery tooling, plus the following providers:

• DVS Portal
• The Hague

list_providers() reads provider manifests under src/pycityvisitorparking/provider/.

Provider documentation:

• DVS Portal: https://github.com/sir-Unknown/pyCityVisitorParking/blob/main/src/pycityvisitorparking/provider/dvsportal/README.md
• The Hague: https://github.com/sir-Unknown/pyCityVisitorParking/blob/main/src/pycityvisitorparking/provider/the_hague/README.md

Supported municipalities

For exact base_url and api_uri values, see the provider READMEs.

• DVS Portal: Apeldoorn, Bloemendaal, Delft, Den Bosch, Doetinchem (via Buha), Groningen, Haarlem, Harlingen, Heemstede, Heerenveen, Heerlen, Hengelo, Katwijk, Leiden, Leidschendam-Voorburg, Middelburg, Nissewaard, Oldenzaal, Rijswijk, Roermond, Schouwen-Duiveland, Sittard-Geleen, Smallingerland, Sudwest-Fryslan, Veere, Venlo, Vlissingen, Waadhoeke, Waalwijk, Weert, Zaanstad, Zevenaar, Zutphen, Zwolle
• The Hague: The Hague

Installation

Requires Python 3.13+.

pip install pycityvisitorparking

Quickstart

import asyncio

from pycityvisitorparking import Client


async def main() -> None:
    async with Client(base_url="https://example") as client:
        provider = await client.get_provider("dvsportal")
        await provider.login(credentials={"username": "user", "password": "secret"})
        permit = await provider.get_permit()
        print(permit)


asyncio.run(main())

Usage

import asyncio

from pycityvisitorparking import Client


async def main() -> None:
    async with Client() as client:
        providers = await client.list_providers()
        print(providers)


asyncio.run(main())

Configuration

• base_url is required for provider requests.
• api_uri is optional; providers may define a default (see provider README).
• Credentials are standardized: username and password are required.
• Provider-specific optional fields (for example permit_media_type_id) are documented in each provider README.

Async behavior

Provider discovery (list_providers(), get_provider()) runs in background threads so async callers avoid blocking the event loop.

Available data

The public API exposes a small, provider-agnostic set of models and operations. Provider READMEs list credential requirements and any unsupported operations.

• Providers: list_providers() returns ProviderInfo with id, favorite_update_fields, and reservation_update_fields.
• Permit: get_permit() returns Permit with id, remaining_balance (minutes), and zone_validity.
• Zone validity: each ZoneValidityBlock includes start_time and end_time (UTC ISO 8601).
• Reservations: list_reservations(), start_reservation(), update_reservation(), and end_reservation() return Reservation with id, name, license_plate, start_time, and end_time. Some providers only support updating end_time (see reservation_update_fields).
• Favorites: list_favorites() and add_favorite() return Favorite with id, name, and license_plate. update_favorite() returns Favorite when supported (favorite_update_fields is non-empty), otherwise it raises ProviderError. remove_favorite() removes the entry without returning data.

Examples

Providers (list_providers()):

import asyncio

from pycityvisitorparking import Client


async def main() -> None:
    async with Client() as client:
        providers = await client.list_providers()
        for info in providers:
            print(info.id, info.favorite_update_fields, info.reservation_update_fields)


asyncio.run(main())

Permit (get_permit()):

import asyncio

from pycityvisitorparking import Client


async def main() -> None:
    async with Client(base_url="https://example", api_uri="/api") as client:
        provider = await client.get_provider("dvsportal")
        await provider.login(credentials={"username": "user", "password": "secret"})
        permit = await provider.get_permit()
        print(permit.id, permit.remaining_balance)


asyncio.run(main())

Zone validity (ZoneValidityBlock):

import asyncio

from pycityvisitorparking import Client


async def main() -> None:
    async with Client(base_url="https://example", api_uri="/api") as client:
        provider = await client.get_provider("dvsportal")
        await provider.login(credentials={"username": "user", "password": "secret"})
        permit = await provider.get_permit()
        for block in permit.zone_validity:
            print(block.start_time, block.end_time)


asyncio.run(main())

Reservations (list_reservations(), start_reservation(), update_reservation(), end_reservation()):

import asyncio
from datetime import datetime, timedelta, timezone

from pycityvisitorparking import Client


async def main() -> None:
    async with Client(base_url="https://example", api_uri="/api") as client:
        provider = await client.get_provider("dvsportal")
        await provider.login(credentials={"username": "user", "password": "secret"})

        reservations = await provider.list_reservations()
        print([reservation.id for reservation in reservations])

        start_time = datetime(2024, 5, 1, 9, 0, tzinfo=timezone.utc)
        end_time = start_time + timedelta(hours=2)
        reservation = await provider.start_reservation(
            "12AB34",
            start_time=start_time,
            end_time=end_time,
            name="Visitor",
        )

        if "end_time" in provider.reservation_update_fields:
            new_end_time = end_time + timedelta(hours=1)
            reservation = await provider.update_reservation(
                reservation.id,
                end_time=new_end_time,
            )
            end_time = new_end_time

        ended = await provider.end_reservation(reservation.id, end_time=end_time)
        print(ended.id, ended.start_time, ended.end_time)


asyncio.run(main())

Favorites (list_favorites(), add_favorite(), update_favorite(), remove_favorite()):

import asyncio

from pycityvisitorparking import Client
from pycityvisitorparking.exceptions import ProviderError


async def main() -> None:
    async with Client(base_url="https://example", api_uri="/api") as client:
        provider = await client.get_provider("dvsportal")
        await provider.login(credentials={"username": "user", "password": "secret"})

        favorites = await provider.list_favorites()
        print([favorite.id for favorite in favorites])

        favorite = await provider.add_favorite("12AB34", name="Visitor")
        try:
            favorite = await provider.update_favorite(favorite.id, name="Visitor 2")
            print(favorite.id, favorite.name, favorite.license_plate)
        except ProviderError:
            pass

        await provider.remove_favorite(favorite.id)


asyncio.run(main())

Provider framework

Providers are discovered via manifest.json files without importing provider modules. Discovery runs in a background thread to avoid blocking the event loop. To add a provider later, create:

src/pycityvisitorparking/provider/<provider_id>/
  manifest.json
  __init__.py
  api.py
  const.py
  README.md
  CHANGELOG.md

Only files under src/pycityvisitorparking/provider/<provider_id>/ should change in a provider PR.

Manifest loading is cached (5-minute TTL); pass refresh=True or call clear_manifest_cache() to force a reload. If you use loader helpers directly, prefer their async_* variants to avoid blocking the event loop.

Credential inputs are standardized: pass username and password to login() for all providers. Provider READMEs list any optional fields such as permit_media_type_id.

Error handling

Public methods raise library exceptions instead of raw aiohttp errors:

• AuthError: authentication failures (HTTP 401/403 or provider auth rejection).
• NetworkError: network/timeout failures.
• ValidationError: invalid inputs (timestamps, plates, missing fields).
• ProviderError: provider responses or request failures not covered above.

Exception messages avoid credentials and full license plates.

Example handling:

from pycityvisitorparking import Client
from pycityvisitorparking.exceptions import AuthError, NetworkError, ProviderError, ValidationError

async with Client(base_url=base_url, api_uri=api_uri) as client:
    try:
        provider = await client.get_provider("dvsportal")
        await provider.login(credentials={"username": "user", "password": "secret"})
        permit = await provider.get_permit()
    except (AuthError, ValidationError) as exc:
        handle_auth_or_input_error(exc)
    except NetworkError as exc:
        handle_network_issue(exc)
    except ProviderError as exc:
        handle_provider_issue(exc)

Logging

The library logs diagnostic events to the pycityvisitorparking logger using the standard Python logging module. Configure handlers and levels in your application to enable debugging output. Logs avoid credentials and full license plates.

Normalization rules

• Public APIs accept only timezone-aware datetime values; naive timestamps raise ValidationError.
• All public timestamps are normalized to UTC ISO 8601 with Z and second precision (microseconds are truncated).
• Internally, reservation times are handled as timezone-aware UTC datetime values and serialized to strings only at provider and model boundaries.
• License plates are normalized to uppercase A-Z0-9 without spaces/symbols.
• Adding a favorite that already exists by license plate raises ValidationError.
• zone_validity must include only chargeable windows.

Development

Run checks with Hatch:

hatch run lint:check
hatch run lint:format-check
hatch run test:run

Build artifacts:

hatch build
python -m twine check dist/*

License

MIT. See LICENSE.