How to create a fake demo RESTful API
https://egghead.io/lessons/javascript-creating-demo-apis-with-json-server
https://github.com/typicode/json-server
npm i -g json-server
npm i -g json-server
or
npx json-server db.json --watch db.json
//db.json 
{ "people: [ 
     { 
     "id": 0,
     "name": "John"
     } 
   ] 
}
json-server db.json
This makes an endpoint: http://localhost:3000/people
Watch the video to see how to use Javascript to create the XML database... very cool.