You receive a message from a prospective employer:
"Before your interview, write a program that runs a server that is accessible on http://localhost:4000/. When your server receives a request on http://localhost:4000/set?somekey=somevalue it should store the passed key and value in memory. When it receives a request on http://localhost:4000/get?key=somekey it should return the value stored at somekey.
If you finish, you can work on saving the data to a file."
Create a new git repository and write code to fulfill the brief to the best of your ability. Store the data in memory, not in a database, but bear in mind that you will later need to add a database to this code.