I pass the First Web service challenge :)
fork me and clone your repository locally.
install node.js then run from the command line
npm install
check your install: run the test
npm test
The 2 tests should pass.
from your command line
node app.js
Open your browser and navigate to
http://localhost:7000/ping
And show your friends what you have so far
Deploy and run your server so that the game can call it.
For example, on a local server that can be accessed by the internet, just run
node app.js
On a cloud, refer to the specific documentation of the cloud, modify your server accordingly and deploy