Example 1: Add no cores to fetch
// There were no quick access to mode and credentials to other fetch answers.
// Data you'll be sending
const data = { funny: "Absolutely not", educational: "yas" }
fetch('https://example.com/api/', {
method: 'POST', // The method
mode: 'no-cors', // It can be no-cors, cors, same-origin
credentials: 'same-origin', // It can be include, same-origin, omit
headers: {
'Content-Type': 'application/json', // Your headers
},
body: JSON.stringify(data),
}).then(returnedData => {
// Do whatever with returnedData
}).catch(err => {
// In case it errors.
})
Example 2: fetch api javascript
fetch('http://example.com/movies.json')
.then((response) => {
return response.json();
})
.then((myJson) => {
console.log(myJson);
});
Example 3: js fetch api
// 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
});
Example 4: javascript fetch api get
fetch('http://example.com/movies.json')
.then(response => response.json())
.then(data => console.log(data));
Example 5: fetch suntax
fetch('http://example.com/movies.json')
.then((response) => {
return response.json();
})
.then((data) => {
console.log(data);
});