Add extra Serde mappings for transaction data

handler/lib/serde/nordigen.py

@@ -6,8 +6,29 @@ class Amount(Model):
     currency: fields.Str()
 
 
+class TransactionBBAN(Model):
+    bban: fields.Str()
+
+
+class ExchangeInstructedAmount(Model):
+    amount: fields.Str()
+    currency: fields.Str()
+
+
+class TransactionCurrencyExchange(Model):
+    exchangeRate: fields.Str()
+    instructedAmount: fields.Nested(ExchangeInstructedAmount)
+    sourceCurrency: fields.Str()
+    targetCurrency: fields.Str()
+    unitCurrency: fields.Str()
+
+
 class Transaction(Model):
     bookingDate: fields.Date()
+    creditorAccount: fields.Optional(fields.Nested(TransactionBBAN))
+    creditorName: fields.Optional(fields.Str())
+    debtorName: fields.Optional(fields.Str())
+    currencyExchange: fields.Optional(fields.Nested(TransactionCurrencyExchange))
     proprietaryBankTransactionCode: fields.Optional(fields.Str())
     remittanceInformationUnstructured: fields.Optional(fields.Str())
     transactionAmount: fields.Nested(Amount)