have you done api testing
I have worked on API testing in my project and I used POSTMAN for manually testing and REST ASSURED java LIBRARY for automation. I used JDBC and it is a Java-based data access technology used for Java database connectivity. It provides classes and interfaces to connect or communicate Java application with database. JDBC API is a Java API that can access any kind of data stored in a Relational Database. It enables Java programs to execute SQL statements.