I am trying to build a frontend interface to communicate with an API service, I am using HTML,CSS & JavaScript. I am using async function / await fetch to call the API and response.jsom to retrieve the Json data from the response, now I have to add X-Authorization:Bearer Token '.....' to the header, how can I do that with JavaScript?
thanx for help
Add your token inside the header, here is an example, call this postData function anywhere from your application, you can add it in a common place
Also check https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch this for the detailed explanation
// Example POST method implementation:
async function postData(url = '', data = {}) {
// Default options are marked with *
let token = "Get your token here, Store it in local storage and read it from local storage is a better method"
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',
"X-Authorization":Bearer Token '.....' // Here you can add your token
},
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
});