javascript fetch api post
fetch('https://example.com/profile', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
'foo': 'bar'
}),
})
.then((res) => res.json())
.then((data) => {
// Do some stuff ...
})
.catch((err) => console.log(err));fetch api javascript
fetch('http://example.com/movies.json')
.then((response) => {
return response.json();
})
.then((myJson) => {
console.log(myJson);
});fetch html from url
fetch('/about').then(function (response) {
// The API call was successful!
return response.text();
}).then(function (html) {
// Convert the HTML string into a document object
var parser = new DOMParser();
var doc = parser.parseFromString(html, 'text/html');
// Get the image file
var img = doc.querySelector('img');
console.log(img);
}).catch(function (err) {
// There was an error
console.warn('Something went wrong.', err);
});fetch method in javascript
// Example POST method implementation:
async function postData(url = '', data = {}) {
// Default options are marked with *
const response = await fetch(url, {
method: 'POST', // *GET, POST, PUT, DELETE, etc.
mode: 'cors', // no-cors, *cors, same-origin
cache: 'no-cache', // *default, no-cache, reload, force-cache, only-if-cached
credentials: 'same-origin', // include, *same-origin, omit
headers: {
'Content-Type': 'application/json'
// 'Content-Type': 'application/x-www-form-urlencoded',
},
redirect: 'follow', // manual, *follow, error
referrerPolicy: 'no-referrer', // no-referrer, *no-referrer-when-downgrade, origin, origin-when-cross-origin, same-origin, strict-origin, strict-origin-when-cross-origin, unsafe-url
body: JSON.stringify(data) // body data type must match "Content-Type" header
});
return response.json(); // parses JSON response into native JavaScript objects
}
postData('https://example.com/answer', { answer: 42 })
.then(data => {
console.log(data); // JSON data parsed by `data.json()` call
});fetch in javascript
// Fetching random users
const getRandomUsers = n => {
console.log('---- Random users generated ---');
const fetchRandomUsers = fetch(`https://randomuser.me/api/?results=${n}`);
fetchRandomUsers.then( data => data.json().then( randomUsers => {
console.log(JSON.stringify(randomUsers.results.length));
randomUsers.results.forEach( randomUserGenerated => {
const{gender , email , name} = randomUserGenerated;
const {title , first , last } = name ;
let fullNames = `${title}.${first} ${last}`;
console.log(`${fullNames} -- ${gender} -- ${email}`);
})
}));
}
getRandomUsers(100);Copyright © 2021 Codeinu
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