Operations supported
1- /POST createFile: provide the content as the payload and create the file
2- /GET readFile: reads a file and returns the contents of the file.
3- /POST modifyAndSaveFile: modify any record and save the file
4- /GET pagenateAndReadFile: Show the content in a paginated form
5- /POST convertJSONtoYAML : convert JSON file (customer.json) content to YAML (customer.yaml)
6- /POST convertJSONtoXML : convent JSON file (customer.json) content to XML(customer.xml)
7- /POST deleteFile : delete the specified file (customer.json)