JAVASCRIPT

fetch json file

fetch('./server.json')
	.then(response => response.json())
	.then(data => console.log(data))
	.catch(err => console.error(err));

fetchData from json file

const fetchData = async () => {
  try {
    const res = await fetch("js/data.json");
    data = await res.json();
    displayData(data);
  } catch (e) {
    console.log("something went wrong!", e);
  }
};

fetchData();

read json file with fetch

const todoUrl ='https://jsonplaceholder.typicode.com/todos';
  
function getAllTodos(){
        return new Promise((resolve => {
            fetch(new Request(todoUrl)).
            then( res => {
                return res.json();
            })
            .then(data => {resolve(data);
            });
        }))
    }