api fetch post

//Obj of data to send in future like a dummyDb const data = { username: 'example' }; //POST request with body equal on data in JSON format fetch('https://example.com/profile', { method: 'POST', headers: { 'Content-Type': 'application/json', }, body: JSON.stringify(data), }) .then((response) => response.json()) //Then with the data from the response in JSON... .then((data) => { console.log('Success:', data); }) //Then with the error genereted... .catch((error) => { console.error('Error:', error); }); // Yeah

// 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. })

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));

post fetch call

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('', )
  .then(data => {
    console.log(data); // JSON data parsed by `data.json()` call
  });

Posted by: Guest on January-16-2021

// data to be sent to the POST request let _data = { title: "foo", body: "bar", userId:1 } fetch('https://jsonplaceholder.typicode.com/posts', { method: "POST", body: JSON.stringify(_data), headers: {"Content-type": "application/json; charset=UTF-8"} }) .then(response => response.json()) .then(json => console.log(json)); .catch(err => console.log(err));

var myHeaders = new Headers(); var myInit = { method: 'POST', headers: myHeaders, mode: 'cors', cache: 'default' }; fetch('flowers.jpg',myInit) .then(function(response) { return response.blob(); }) .then(function(myBlob) { var objectURL = URL.createObjectURL(myBlob); myImage.src = objectURL; });

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