Begin implementing TrueLayer API

This commit is contained in:
Mark Veidemanis 2022-02-28 20:03:21 +00:00
parent dcfc4510ad
commit d566b4da16
Signed by: m
GPG Key ID: 5ACFCEED46C0904F
1 changed files with 94 additions and 0 deletions

View File

@ -0,0 +1,94 @@
# Twisted/Klein imports
from twisted.logger import Logger
# Other library imports
import requests
from json import dumps
from simplejson.errors import JSONDecodeError
# Project imports
from settings import settings
class TrueLayer(object):
"""
Class to manage calls to Open Banking APIs through TrueLayer.
"""
def __init__(self):
self.log = Logger("truelayer")
self.token = None
# self.auth = HTTPBasicAuth(settings.Yapily.ID, settings.Yapily.Key)
# print(self.get_institutions())
# authorisation = self.get_authorisation("monzo_ob", settings.Yapily.CallbackURL)
# print("authirisation", authorisation)
def setup_auth(self):
"""
Exchange an authentication code for an access and refresh token.
"""
headers = {"Content-Type": "application/x-www-form-urlencoded"}
data = {
"grant_type": "authorization_code",
"code": settings.TrueLayer.Monzo_AuthCode,
"client_id": settings.TrueLayer.ID,
"client_secret": settings.TrueLayer.Key,
"redirect_uri": "https://console.truelayer.com/redirect-page",
}
r = requests.post(f"{settings.TrueLayer.Base}/connect/token", data=data, headers=headers)
try:
parsed = r.json()
except JSONDecodeError:
self.log.error("Error parsing access token response: {content}", content=r.content)
return False
print("PARSED", parsed)
if r.status_code == 200:
try:
settings.TrueLayer.Monzo_RefreshToken = parsed["refresh_token"]
settings.TrueLayer.Monzo_SetupToken = "0"
settings.write()
self.log.info("Refreshed refresh token")
self.token = parsed["access_token"]
self.log.info("Refreshed access token")
except KeyError:
self.log.error(f"Token authorization didn't contain refresh or access token: {parsed}", parsed=parsed)
return False
else:
self.log.error(f"Cannot refresh token: {parsed}", parsed=parsed)
return False
def get_new_token(self, _=None):
"""
Exchange our refresh token for an access token.
"""
print("calling get new token")
pass
def get_institutions(self, filter_name=None):
"""
Get a list of supported institutions.
"""
path = f"{settings.Yapily.Base}/institutions"
r = requests.get(path, auth=self.auth)
try:
parsed = r.json()
except JSONDecodeError:
self.log.error("Error parsing institutions response: {content}", content=r.content)
return False
return parsed
def get_authorisation(self, institution_id, callback_url):
"""
Get an authorisation URL for linking a bank account of an institution.
"""
headers = {"Content-Type": "application/json"}
data = {"applicationUserId": "account-data-and-transactions-tutorial", "institutionId": institution_id, "callback": callback_url}
path = f"{settings.Yapily.Base}/account-auth-requests"
r = requests.post(path, headers=headers, data=dumps(data), auth=self.auth)
try:
parsed = r.json()
except JSONDecodeError:
self.log.error("Error parsing institutions response: {content}", content=r.content)
return False
return parsed