This exercise involves creating API endpoints to create a text file in a particular folder and to retrieve all the text files in that particular folder.

1. Created an Express server
2. Created two API endpoints using writeFileSync and readdirSync.
3. writeFileSync to write data to a file.
4. readdirSync to read the contents of the directory and it returns an array of names of files and directories inside the particular folder.

1. To write a file - https://nodejsfilesystem-jq09.onrender.com/write-file
2. To list the files in a directory - https://nodejsfilesystem-jq09.onrender.com/list-files