Remove calls to Revolut
parent
b53fbfc905
commit
2266300064
GPG Key ID:
5ACFCEED46C0904F
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# Twisted/Klein imports
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from twisted.logger import Logger
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# Other library imports
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from json import dumps
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from simplejson.errors import JSONDecodeError
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import requests
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from cryptography.hazmat.primitives import serialization
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from cryptography.hazmat.backends import default_backend
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import jwt
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from random import choices
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from string import ascii_uppercase
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# Project imports
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from settings import settings
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class Revolut(object):
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"""
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Class to handle Revolut API calls.
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"""
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def __init__(self):
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"""
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Initialise the Revolut object.
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Set the logger and token.
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"""
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self.log = Logger("revolut")
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self.token = None
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def setup_auth(self):
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"""
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Function to create a new Java Web Token and use it to get a refresh/access token.
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"""
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self.create_new_jwt()
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self.get_access_token()
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def create_new_jwt(self):
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"""
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Create a new Java Web Token.
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"""
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payload = {
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"iss": settings.Revolut.Domain,
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"sub": settings.Revolut.ClientID,
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"aud": "https://revolut.com",
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"exp": int(settings.Revolut.Expiry),
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}
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with open(settings.Revolut.PrivateKey, "rb") as f:
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pem_bytes = f.read()
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# payload = {jwt_header, jwt_body}
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private_key = serialization.load_pem_private_key(pem_bytes, password=None, backend=default_backend())
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encoded = jwt.encode(payload, private_key, algorithm="RS256")
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settings.Revolut.JWT = encoded
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settings.write()
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def get_access_token(self):
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"""
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Get an access token with our JWT.
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:return: True or False
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:rtype: bool
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"""
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headers = {"Content-Type": "application/x-www-form-urlencoded"}
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data = {
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"grant_type": "authorization_code",
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"code": settings.Revolut.AuthCode,
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"client_id": settings.Revolut.ClientID,
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"client_assertion_type": "urn:ietf:params:oauth:client-assertion-type:jwt-bearer",
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"client_assertion": settings.Revolut.JWT,
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}
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r = requests.post(f"{settings.Revolut.Base}/auth/token", data=data, headers=headers)
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try:
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parsed = r.json()
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except JSONDecodeError:
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self.log.error("Error parsing access token response: {content}", content=r.content)
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return False
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if r.status_code == 200:
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try:
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settings.Revolut.RefreshToken = parsed["refresh_token"]
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settings.Revolut.SetupToken = "0"
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settings.write()
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self.log.info("Refreshed refresh token - Revolut")
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self.token = parsed["access_token"]
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self.log.info("Refreshed access token - Revolut")
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except KeyError:
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self.log.error(f"Token authorization didn't contain refresh or access token: {parsed}", parsed=parsed)
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return False
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else:
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self.log.error(f"Cannot refresh token: {parsed}", parsed=parsed)
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return False
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def get_new_token(self, fail=False):
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"""
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Get a new access token with the refresh token.
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:param fail: whether to exit() if this fails
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:type fail: bool
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:return: True or False
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:rtype: bool
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"""
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headers = {"Content-Type": "application/x-www-form-urlencoded"}
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data = {
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"grant_type": "refresh_token",
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"refresh_token": settings.Revolut.RefreshToken,
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"client_id": settings.Revolut.ClientID,
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"client_assertion_type": "urn:ietf:params:oauth:client-assertion-type:jwt-bearer",
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"client_assertion": settings.Revolut.JWT,
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}
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r = requests.post(f"{settings.Revolut.Base}/auth/token", data=data, headers=headers)
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try:
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parsed = r.json()
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except JSONDecodeError:
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if fail:
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exit()
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return False
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if r.status_code == 200:
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if "access_token" in parsed.keys():
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self.token = parsed["access_token"]
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self.log.info("Refreshed access token - Revolut")
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return True
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else:
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self.log.error(f"Token refresh didn't contain access token: {parsed}", parsed=parsed)
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if fail:
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exit()
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return False
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else:
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self.log.error(f"Cannot refresh token: {parsed}", parsed=parsed)
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if fail:
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exit()
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return False
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def setup_webhook(self):
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"""
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Check the webhook we have set up in Revolut.
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Set up configured webhook if not already set up.
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:return: True or False
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:rtype: bool
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"""
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webhook = self.get_webhook()
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if "url" in webhook.keys():
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if webhook["url"] == settings.Revolut.WebhookURL:
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self.log.info("Webhook exists - skipping setup: {url}", url=webhook["url"])
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return True # Webhook already exists
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self.log.info("Setting up webhook: {url}", url=settings.Revolut.WebhookURL)
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headers = {"Authorization": f"Bearer {self.token}"}
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data = {"url": settings.Revolut.WebhookURL}
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r = requests.post(f"{settings.Revolut.Base}/webhook", data=dumps(data), headers=headers)
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if r.status_code == 204:
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self.log.info("Set up webhook: {url}", url=settings.Revolut.WebhookURL)
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return True
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else:
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parsed = r.json()
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self.log.info("Failed setting up webhook: {parsed}", parsed=parsed)
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return False
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def get_webhook(self):
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"""
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Get the webhook address active in Revolut.
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:return: dict of hook with key url or False
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:rtype: dict or bool
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"""
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headers = {"Authorization": f"Bearer {self.token}"}
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r = requests.get(f"{settings.Revolut.Base}/webhook", headers=headers)
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if r.status_code == 200:
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parsed = r.json()
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return parsed
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elif r.status_code == 404:
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return {}
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else:
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self.log.error("Cannot get webhook: {content}", r.content)
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return False
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def accounts(self):
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"""
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Get the details and balances of all Revolut accounts.
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:return: account details
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:rtype: dict
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"""
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headers = {"Authorization": f"Bearer {self.token}"}
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r = requests.get(f"{settings.Revolut.Base}/accounts", headers=headers)
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if r.status_code == 200:
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return r.json()
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else:
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self.log.error("Error getting accounts: {content}", content=r.content)
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return False
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def get_total_usd(self):
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rates = self.money.get_rates_all()
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accounts = self.accounts()
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if not accounts:
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return False
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total_usd = 0
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for account in accounts:
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if account["currency"] == "USD":
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total_usd += account["balance"]
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else:
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total_usd += account["balance"] / rates[account["currency"]]
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return total_usd
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def convert(self, from_account_id, from_currency, to_account_id, to_currency, sell_amount):
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"""
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Convert currency.
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:param sell_currency: currency to sell
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:param buy_currency: currency to buy
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:param sell_amount: amount of currency to sell
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"""
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reference = "".join(choices(ascii_uppercase, k=5))
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headers = {"Authorization": f"Bearer {self.token}"}
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data = {
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"from": {
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"account_id": from_account_id,
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"currency": from_currency,
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"amount": sell_amount,
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},
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"to": {
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"account_id": to_account_id,
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"currency": to_currency,
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},
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"request_id": reference,
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}
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r = requests.post(f"{settings.Revolut.Base}/exchange", headers=headers, data=dumps(data))
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if r.status_code == 200:
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return r.json()
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else:
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self.log.error("Error converting balance: {content}", content=r.content)
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return False
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def shuffle(self, currency):
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"""
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Exchange money in all accounts to the given currency.
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:param currency: the currency to convert all our funds to
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"""
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accounts = self.accounts()
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# Find given currency account
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for account in accounts:
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if account["currency"] == currency:
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if account["state"] == "active" and account["public"] is True:
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dest_account = account
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# Remove this account
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accounts.remove(dest_account)
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break
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for account in accounts:
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if account["balance"] > 0:
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self.convert(account["id"], account["currency"], dest_account["id"], dest_account["currency"], account["balance"])
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return True
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