normalizing currencies

donation-api/src/donation_api/constants.py

@@ -45,9 +45,12 @@ class Constants:
     stripe_maximum_amount: int = int(os.getenv("STRIPE_MAXIMUM_AMOUNT") or "999999")
 
     def __post_init__(self):
-        self.alllowed_currencies = (
-            os.getenv("ALLOWED_CURRENCIES") or "USD|EUR|CHF"
-        ).split("|")
+        self.alllowed_currencies = [
+            currency.upper()
+            for currency in (os.getenv("ALLOWED_CURRENCIES") or "USD|EUR|CHF").split(
+                "|"
+            )
+        ]
 
         self.stripe_webhook_testing_ips = os.getenv(
             "STRIPE_WEBHOOK_TESTING_IPS", ""

donation-api/src/donation_api/stripe.py

@@ -181,13 +181,13 @@ async def check_config():
 )
 async def create_payment_intent(pi_payload: PaymentIntentRequest):
     """API endpoint to receive Book addition requests and add to database"""
-    if not re.match(r"[a-z]{3}", pi_payload.currency.lower()):
+    if not re.match(r"[A-Z]{3}", pi_payload.currency.upper()):
         logger.error("Currency doesnt look like a currency")
         raise HTTPException(
             status_code=HTTPStatus.BAD_REQUEST,
             detail="Currency doesnt look like a currency",
         )
-    if pi_payload.currency not in conf.alllowed_currencies:
+    if pi_payload.currency.upper() not in conf.alllowed_currencies:
         raise HTTPException(
             status_code=HTTPStatus.BAD_REQUEST,
             detail="Currency not supported",