I'm working on a html project that I have to import some data from a json file (cannot be edited), and I need to do this using pure javascript or ES6, but I have no idea how to do this, because all that I knew I apllyed on the code, but it didn't work. Right now, I only want to get a link of a background image who is inside the json file, so if I can get acess to the data, my work after this is simple. A little example of how it works using the tools that I wrote above will help me a lot.
Link to the json file: https://sample-api-78c77.firebaseio.com/tv-shows/SHOW123.json