Create transaction_processing.py

banking/transaction_processing.py

@@ -0,0 +1,86 @@
+# banking/transaction_processing.py
+
+import logging
+
+def deposit(account_id: int, amount: float) -> bool:
+    """
+    Deposit an amount into an account.
+
+    Args:
+        account_id (int): The ID of the account.
+        amount (float): The amount to deposit.
+
+    Returns:
+        bool: True if the deposit was successful, False otherwise.
+    """
+    # implementation
+    logging.info(f"Depositing {amount} into account {account_id}")
+    # Retrieve the account from the database or in-memory data structure
+    account = get_account_by_id(account_id)
+
+    # Validate the input parameters
+    if amount < 0:
+        raise ValueError("Amount cannot be negative")
+
+    # Update the account balance
+    account['balance'] += amount
+
+    # Save the updated account back to the database or in-memory data structure
+    save_account(account)
+
+    # Return True to indicate success
+    return True
+
+def withdraw(account_id: int, amount: float) -> bool:
+    """
+    Withdraw an amount from an account.
+
+    Args:
+        account_id (int): The ID of the account.
+        amount (float): The amount to withdraw.
+
+    Returns:
+        bool: True if the withdrawal was successful, False otherwise.
+    """
+    # implementation
+    logging.info(f"Withdrawing {amount} from account {account_id}")
+    # Retrieve the account from the database or in-memory data structure
+    account = get_account_by_id(account_id)
+
+    # Validate the input parameters
+    if amount < 0:
+        raise ValueError("Amount cannot be negative")
+    if account['balance'] < amount:
+        raise ValueError("Insufficient balance")
+
+    # Update the account balance
+    account['balance'] -= amount
+
+    # Save the updated account back to the database or in-memory data structure
+    save_account(account)
+
+    # Return True to indicate success
+    return True
+
+def transfer(from_account_id: int, to_account_id: int, amount: float) -> bool:
+    """
+    Transfer an amount between two accounts.
+
+    Args:
+        from_account_id (int): The ID of the source account.
+        to_account_id (int): The ID of the destination account.
+        amount (float): The amount to transfer.
+
+    Returns:
+        bool: True if the transfer was successful, False otherwise.
+    """
+    # implementation
+    logging.info(f"Transferring {amount} from account {from_account_id} to account {to_account_id}")
+    # Withdraw the amount from the source account
+    withdraw(from_account_id, amount)
+
+    # Deposit the amount into the destination account
+    deposit(to_account_id, amount)
+
+    # Return True to indicate success
+    return True