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Authenticating a Request Header
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Last updated: 2024-01-25 11:43:50
Authenticating a Request Header
Last updated: 2024-01-25 11:43:50
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This example demonstrates how to use an edge function to perform simple permission control by verifying the value of the x-custom-token request header. If the value is token-123456, access is allowed. Otherwise, access is denied.

Sample Code

async function handleRequest(request) {
  const token = request.headers.get('x-custom-token');

  if (token === 'token-123456') {
    return new Response('hello world');
  }

  // Incorrect key supplied. Reject the request.
  return new Response('Sorry, you have supplied an invalid token.', {
    status: 403,
  });
}

addEventListener('fetch', event => {
  event.respondWith(handleRequest(event.request));
});

Sample Preview

In the address bar of the browser, enter a URL that matches a trigger rule of the edge function to preview the effect of the sample code.
If authentication fails, access is denied.

If authentication is successful, access is allowed.


References

Runtime APIs: Headers
Runtime APIs: Response
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