SprinBoot Unmarshalling Application typically refers to the process of converting data in a serialized format (e.g. JSON or XML) into Java objects A command-line runner is a Spring Boot component that allows you to run code when the Spring application starts. It's useful for tasks like database initialization, data loading, or any other setup task.

1. Clone the repository.
2. Navigate to the root directory of the project.
3. Update the file path in Service layer.
4. Run the maven update project on your IDE.
5. Run the Project

Note: No need to hit URL this application implmented command-line runner.