how to fetch an api in javascript code example
Example 1: javascript fetch api
fetch('http://example.com/movies.json')
.then((response) => {
return response.json();
})
.then((data) => {
console.log(data);
});
Example 2: fetch api javascript
fetch('http://example.com/movies.json')
.then((response) => {
return response.json();
})
.then((myJson) => {
console.log(myJson);
});
Example 3: fetch api javascript
fetch('https://apiYouWantToFetch.com/players') // returns a promise
.then(response => response.json()) // converting promise to JSON
.then(players => console.log(players)) // console.log to view the response
Example 4: fetch api in javascript
// GET Request.
fetch('https://jsonplaceholder.typicode.com/users')
// Handle success
.then(response => response.json()) // convert to json
.then(json => console.log(json)) //print data to console
.catch(err => console.log('Request Failed', err)); // Catch errors
Example 5: fetch api in js
// fetch API
var myData = async () => {
try {
const raw_response = await fetch("https://jsonplaceholder.typicode.com/users");
if (!raw_response.ok) { // check for the 404 errors
throw new Error(raw_response.status);
}
const json_data = await raw_response.json();
console.log(json_data);
}
catch (error) { // catch block for network errors
console.log(error);
}
}
fetchUsers();
Example 6: how to use fetch() javascript
//Most API's will only allow you to fetch on their website.
//This means you couldn't run this code in the console on
// google.com because:
// 1. Google demands the fetch request be from https
// 2. open-notify's API blocks the request outside of their website
fetch('http://api.open-notify.org/astros.json')
.then(function(response) {
return response.json();
})
.then(function(json) {
console.log(json)
});
// Here is another example. A method (function) that
// grabs Game of Thrones books from an API ...
function fetchBooks() {
return fetch('https://anapioficeandfire.com/api/books')
.then(resp => resp.json())
.then(json => renderBooks(json));
}
function renderBooks(json) {
const main = document.querySelector('main')
json.forEach(book => {
const h2 = document.createElement('h2')
h2.innerHTML = `<h2>${book.name}</h2>`
main.appendChild(h2)
})
}
document.addEventListener('DOMContentLoaded', function() {
fetchBooks()
})