Follow instructions in class to create an npm project from scratch, and make a simple hello world web app using Express.js.

This week we will build the Zip code API that we used last week in-class.

• cd zip-api
• npm install
• Add the code for the /zip and /city routes
• npm start to start dev server
• Visit:
  • http://localhost:8000/
  • http://localhost:8000/zip/10016
  • http://localhost:8000/city/SPRINGFIELD