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Python SDK for Finanfut Billing External API

Project description

Finanfut Billing Python SDK

Client oficial sincrònic per consumir la Finanfut Billing External API (/external/v1) amb models compatibles amb Pydantic v2, ara preparat per treballar amb Business Units.

Instal·lació

  • Pydantic 2.x: pip install finanfut-billing-sdk>=2.0
  • Pydantic 1.x: pip install finanfut-billing-sdk<2.0
  • Des del repositori local: pip install -e backend/sdk

Dependències principals:

  • pydantic>=2.0,<3.0
  • requests>=2.31

Configuració bàsica i Business Units

from finanfut_billing_sdk import FinanfutBillingClient

client = FinanfutBillingClient(
    base_url="https://billing.finanfut.com",
    api_key="sk_live_xxx",
    business_unit_id="bu_default",  # opcional: aplicada a serveis/factures per defecte
)

Com funciona business_unit_id

  • Global al client: passa business_unit_id al constructor i s'aplicarà automàticament a les operacions compatibles.
  • Per operació: pots sobreescriure-la en cada mètode (business_unit_id="bu_alt").
  • Endpoints sense BU: liquidacions, tax rates o partner payment methods són d'abast de companyia i ignoren la BU (l'SDK emet un avís si n'hi ha una definida).
  • Validació: crear serveis/productes i factures requereix business_unit_id. L'SDK llança FinanfutBillingValidationError si no n'hi ha cap disponible.

Exemples d'ús

Crear producte/servei amb BU

from decimal import Decimal
from finanfut_billing_sdk.models import ExternalServiceUpsertRequest

payload = ExternalServiceUpsertRequest(
    external_reference="service_abc",
    type="service",
    name="Monthly subscription",
    description="Access to premium content",
    price=Decimal("29.90"),
    vat_rate_code="vat_21",
)
service = client.upsert_service(payload)  # usa la BU global

Crear factura amb BU (sobre-escrivint la BU global)

from finanfut_billing_sdk.models import ExternalInvoiceCreateRequest, ExternalInvoiceLine

invoice = client.create_invoice(
    ExternalInvoiceCreateRequest(
        client_external_reference="client_123",
        currency="EUR",
        lines=[
            ExternalInvoiceLine(
                service_external_reference="service_abc",
                description="Premium plan",
                qty=1,
                price=29.90,
                vat_rate_code="vat_21",
            ),
        ],
    ),
    business_unit_id="bu_sales",  # prioritat respecte la BU global
)

Operacions sense BU (àmbit de companyia)

# Les liquidacions continuen essent globals a la companyia.
settlement = client.settlements.create_settlement(...)
# Si el client té BU per defecte, l'SDK avisarà que no s'aplica a aquest endpoint.

Enviar factura i registrar pagament

from finanfut_billing_sdk.models import ExternalInvoiceEmailRequest, ExternalPaymentCreateRequest

email = client.send_invoice_email(
    invoice.invoice_id,
    ExternalInvoiceEmailRequest(subject="La teva factura", body="Adjunt trobaràs el PDF"),
)

payment = client.register_payment(
    invoice.invoice_id,
    ExternalPaymentCreateRequest(amount=29.90, method="stripe"),
)

Errors

from finanfut_billing_sdk.errors import (
    FinanfutBillingAuthError,
    FinanfutBillingServiceError,
    FinanfutBillingValidationError,
)

try:
    client.list_tax_rates()
except FinanfutBillingAuthError:
    print("API key incorrecta o sense permisos")
except FinanfutBillingValidationError as e:
    print("Error de validació:", e.payload)
except FinanfutBillingServiceError as e:
    print(f"Error de servei ({e.request_id}): {e.error}")

Els errors del backend inclouen sempre error, message i request_id.

Publicació a PyPI

El paquet està preparat per publicar-se a PyPI quan es creen tags v* al repositori. El workflow publish-sdk.yml valida la versió (__version__) i fa l'upload amb Twine.

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