I worked on a server-side money application project that involved interacting with a PostgreSQL database using the JDBC API. The project consisted of various components, including a Jdbc class responsible for executing SQL statements to interact with the database. Additionally, there were controller classes that handled authenticated account operations, model classes that defined variables for users, accounts, and transactions, and DAO (Data Access Object) classes that implemented security and provided server-side APIs using Spring and JDBC.One of the key aspects of the project was integration testing, which served as the primary testing method. This allowed us to validate the functionality and interactions of the different components in a real-world scenario.By utilizing the JDBC API and working with a PostgreSQL database, we were able to effectively manage financial transactions and ensure the security of user accounts. The project incorporated modern server-side development practices, such as implementing DAO patterns, utilizing Spring framework for API development, and leveraging integration testing for robustness and reliability.Overall, the project aimed to provide a secure and efficient server-side money application, enabling users to perform various financial operations while ensuring the integrity and confidentiality of their data.