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    The headers function allows you to read the HTTP incoming request headers from a Server Component.


    This API extends the Web Headers API. It is read-only, meaning you cannot set / delete the outgoing request headers.

    import { headers } from 'next/headers';
    export default function Page() {
      const headersList = headers();
      const referer = headersList.get('referer');
      return <div>Referer: {referer}</div>;

    Good to know:

    • headers() is a Dynamic Function whose returned values cannot be known ahead of time. Using it in a layout or page will opt a route into dynamic rendering at request time.

    API Reference

    const headersList = headers();


    headers does not take any parameters.


    headers returns a read-only Web Headers object.

    • Headers.entries(): Returns an iterator allowing to go through all key/value pairs contained in this object.
    • Headers.forEach(): Executes a provided function once for each key/value pair in this Headers object.
    • Headers.get(): Returns a String sequence of all the values of a header within a Headers object with a given name.
    • Headers.has(): Returns a boolean stating whether a Headers object contains a certain header.
    • Headers.keys(): Returns an iterator allowing you to go through all keys of the key/value pairs contained in this object.
    • Headers.values(): Returns an iterator allowing you to go through all values of the key/value pairs contained in this object.


    Usage with Data Fetching

    headers() can be used in combination with Suspense for Data Fetching.

    import { headers } from 'next/headers';
    async function getUser() {
      const headersInstance = headers();
      const authorization = headersInstance.get('authorization');
      // Forward the authorization header
      const res = await fetch('...', {
        headers: { authorization },
      return res.json();
    export default async function UserPage() {
      const user = await getUser();
      return <h1>{}</h1>;

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