Withdrawal Service

Prerequisites :

1. Java 17 - Installation
2. Apache Maven - Installation

Running the application :

• To run the application on windows, please run ./run-application.bat
• To run the application on Linux or Mac, please run ./run-application.sh

Once the application runs successfully, you can find the API documentation here

API overview :

1. user-controller helps setup user accounts and CRUD operations for the same.

2. transaction-controller

   /transactions/withdrawl - makes a transfer from user's account to a wallet. It talks to WithdrawalService for approval

   /transactions/transfer - used for account-to-account transfer

Data Model

Unit Testing

Unit tests are available under src/test/java

class : TransactionServiceTest

Tests :

1. testWithdrawalsSimple
2. testWithdrawalsConcurrent
3. testTransfersSimple
4. testTransfersConcurrent
5. testTransferssAndWithdrawalsConcurrent