HTTP GET request example is JavaScript - https://medium.com/douglas-matoso-english/http-primer-for-frontend-developers-f091a2070637

http-get.js

// the request:
// GET information about the latest React release on GitHub
// we don't need to inform the method (GET is the default), 
//   headers or body (GET request doesn't need one)
fetch('https://api.github.com/repos/facebook/react/releases/latest') // the URI
  .then(response => {
    // we received the response and print the status code
    console.log(response.status)
    // return response body as JSON
    return response.json()
  })
  .then(json => {
    // print the JSON
    console.log(json)
  })

// on success will log:
// 200
// { ... contents of the response body as JSON ... }