Moneybag

Realization

To begin, I made a list of the necessary features and selected the appropriate technologies, and then started developing the backend server.

I developed the backend in Java and Spring framework and chose the MySql database for data persistence. The application utilizes the MVC architecture. The database runs in a Docker container. Authentication and authorization are provided by JWT token using Spring Security. The API generates Open Api documentation automatically. Additionally, I created documentation for the API using Postman, which includes example requests and responses.

After that, I continued with the development of the frontend. I developed the front end as a SPA using the Vue.js framework using TypeScript instead of JavaScript for convenience and using the Vuetify component library. I used the Axios library for communication with the API and the Apex charts library for chart rendering. I also set up an automatic build process on GitHub using GitHub actions.

Issues

During the development, I encountered some issues. One of them was adding filtering and sorting parameters to the "get all records" endpoint. To solve this problem, I used the specification-arg-resolver library which can map request parameters to Jpa specifications and extended the record repository by PagingAndSortingRepository, and JpaSpecificationExecutor.

Conclusion

I originally planned to create a much smaller project but finished with a larger one.

Developing this project improved my skills in backend development, including creating custom JPQL queries, and API filters, and working with Spring Security.