budget/pfbudget/input/nordigen.py
Luís Murta 98f1730ac2
Add period option to transactions download
The period will only apply after the transactions have been received,
since if sent on the request, credit cards seem to use the value date
instead of the booking date, rendering the feature useless.

Also adds some robustness to the download of the transactions, by adding
a retry in case of timeout.
2022-10-09 23:11:14 +01:00

121 lines
3.6 KiB
Python

from datetime import date
from time import sleep
from requests import ReadTimeout
from dotenv import load_dotenv
from nordigen import NordigenClient
from uuid import uuid4
import os
import webbrowser
from .input import Input
from pfbudget.common.types import NoBankSelected, Transactions
from pfbudget.utils import convert
load_dotenv()
class NordigenInput(Input):
def __init__(self, manager, options: dict = {}, start=date.min, end=date.max):
super().__init__(manager)
self._client = NordigenClient(
secret_key=os.environ.get("SECRET_KEY"),
secret_id=os.environ.get("SECRET_ID"),
)
self.client.token = self.__token()
# print(options)
if "all" in options and options["all"]:
self.__banks = self.manager.get_banks()
elif "id" in options and options["id"]:
self.__banks = [
self.manager.get_bank_by("nordigen_id", b) for b in options["id"]
]
elif "name" in options and options["name"]:
self.__banks = [
self.manager.get_bank_by("name", b) for b in options["name"]
]
else:
self.__banks = None
self.__from = start
self.__to = end
def parse(self) -> Transactions:
transactions = []
if not self.__banks:
raise NoBankSelected
for bank in self.__banks:
print(f"Downloading from {bank}...")
requisition = self.client.requisition.get_requisition_by_id(
bank.requisition_id
)
for acc in requisition["accounts"]:
account = self._client.account_api(acc)
retries = 0
downloaded = {}
while retries < 3:
try:
downloaded = account.get_transactions()
break
except ReadTimeout:
retries += 1
print(f"Request #{retries} timed-out, waiting 1s")
sleep(1)
if not downloaded:
print(f"Couldn't download transactions for {account}")
continue
converted = [
convert(t, bank.name, bank.invert)
for t in downloaded["transactions"]["booked"]
]
transactions.extend(
[t for t in converted if self.__from <= t.date <= self.__to]
)
return transactions
def token(self):
token = self._client.generate_token()
print(f"New access token: {token}")
return token
def requisition(self, institution: str, country: str = "PT"):
link, _ = self.__requisition_id(institution, country)
webbrowser.open(link)
def list(self, country: str):
print(self._client.institution.get_institutions(country))
@property
def client(self):
return self._client
def __token(self):
if token := os.environ.get("TOKEN"):
return token
else:
token = self._client.generate_token()
print(f"New access token: {token}")
return token
def __requisition_id(self, i: str, c: str):
id = self._client.institution.get_institution_id_by_name(
country=c, institution=i
)
init = self._client.initialize_session(
redirect_uri="https://murta.dev",
institution_id=id,
reference_id=str(uuid4()),
)
print(f"{i}({c}) link: {init.link} and requisition ID: {init.requisition_id}")
return (init.link, init.requisition_id)