sreeja124/-bank-api

Bank API is a Spring Boot REST service for opening and managing accounts, depositing and withdrawing funds, transferring between accounts, and viewing transaction history. The principal flow is an HTTP request through the account controller to transactional account services, which update account state and transaction history through repositories backed by the documented in-memory H2 database; responses are mapped to API DTOs. Transfers lock accounts in a fixed order, and exception handling maps failures to JSON ProblemDetail responses. Some persistence wiring is documented but not shown in the sampled source, so that link is marked unverified.