Published: February 16 2023

Fetch - Add Bearer Token Authorization Header to HTTP Request

Below is a quick example of how to add a Bearer Token Authorization Header to an HTTP request in JavaScript using fetch() which comes built into all modern browsers.

Fetch Bearer Token

This sends an HTTP GET request to the Test JSON API with the HTTP Authorization header set to a bearer token. The Test JSON API is a fake online REST API that includes a product details route (/products/{id}), the returned product includes an id and name.

After the JSON data is fetched from the API the product name is written to the the #product-name element so it's displayed on the page.

Add Authorization Header

The auth header with bearer token is added to the request by passing a custom headers object (e.g. { headers: { 'Authorization': 'Bearer my-token' } }) as the second parameter to the fetch() function. The second param contains the fetch request options and it supports a bunch of different options for making HTTP requests including setting headers, a complete list is available at

// GET request using fetch with bearer token authorization header
const element = document.querySelector('#product-name');
const headers = { 'Authorization': 'Bearer my-token' }; // auth header with bearer token
fetch('', { headers })
    .then(response => response.json())
    .then(data => element.innerHTML =;

See the Fetch Request with Bearer Token on StackBlitz at

More Fetch Examples

For more Fetch HTTP examples see Fetch - HTTP GET Request Examples.


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