1//Obj of data to send in future like a dummyDb
2const data = { username: 'example' };
3
4//POST request with body equal on data in JSON format
5fetch('https://example.com/profile', {
6 method: 'POST',
7 headers: {
8 'Content-Type': 'application/json',
9 },
10 body: JSON.stringify(data),
11})
12.then((response) => response.json())
13//Then with the data from the response in JSON...
14.then((data) => {
15 console.log('Success:', data);
16})
17//Then with the error genereted...
18.catch((error) => {
19 console.error('Error:', error);
20});
21
22// Yeah
1// There were no quick access to mode and credentials to other fetch answers.
2// Data you'll be sending
3const data = { funny: "Absolutely not", educational: "yas" }
4
5fetch('https://example.com/api/', {
6 method: 'POST', // The method
7 mode: 'no-cors', // It can be no-cors, cors, same-origin
8 credentials: 'same-origin', // It can be include, same-origin, omit
9 headers: {
10 'Content-Type': 'application/json', // Your headers
11 },
12 body: JSON.stringify(data),
13}).then(returnedData => {
14 // Do whatever with returnedData
15}).catch(err => {
16 // In case it errors.
17})
1fetch('http://example.com/songs')
2 .then(response => response.json())
3 .then(data => console.log(data))
4 .catch(err => console.error(err));
1fetch('http://example.com/movies.json')
2 .then((response) => {
3 return response.json();
4 })
5 .then((myJson) => {
6 console.log(myJson);
7 });
1const data = { username: 'example' };
2
3fetch('https://example.com/profile', {
4 method: 'POST', // or 'PUT'
5 headers: {
6 'Content-Type': 'application/json',
7 },
8 body: JSON.stringify(data),
9})
10.then(response => response.json())
11.then(data => {
12 console.log('Success:', data);
13})
14.catch((error) => {
15 console.error('Error:', error);
16});
17
1// Example POST method implementation:
2async function postData(url = '', data = {}) {
3 // Default options are marked with *
4 const response = await fetch(url, {
5 method: 'POST', // *GET, POST, PUT, DELETE, etc.
6 mode: 'cors', // no-cors, *cors, same-origin
7 cache: 'no-cache', // *default, no-cache, reload, force-cache, only-if-cached
8 credentials: 'same-origin', // include, *same-origin, omit
9 headers: {
10 'Content-Type': 'application/json'
11 // 'Content-Type': 'application/x-www-form-urlencoded',
12 },
13 redirect: 'follow', // manual, *follow, error
14 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
15 body: JSON.stringify(data) // body data type must match "Content-Type" header
16 });
17 return response.json(); // parses JSON response into native JavaScript objects
18}
19
20postData('https://example.com/answer', { answer: 42 })
21 .then(data => {
22 console.log(data); // JSON data parsed by `data.json()` call
23 });
24