Handle token expiration for API requests about shaka-player HOT 8 CLOSED

The application level redirects tutorial covers both the making of new requests and overwriting the response data, so the code snippet there is probably a good starting point for you: https://shaka-player-demo.appspot.com/docs/api/tutorial-application-level-redirects.html

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Roughly, yes. But you will have to overwrite the fields of res in your snippet, rather than return a different object.

You want some of the details from this tutorial (overwriting part of the response):

https://shaka-player-demo.appspot.com/docs/api/tutorial-license-wrapping.html

And some of the details from this tutorial (sending a new async request from a filter):

https://shaka-player-demo.appspot.com/docs/api/tutorial-license-server-auth.html

This could probably use a new tutorial entry if we don't add an explicit API of some kind.

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You can use something like:

player.getNetworkingEngine().registerRequestFilter(function(type, request, context) {
  // Only manipulate license responses for example
  if (type == shaka.net.NetworkingEngine.RequestType.LICENSE) {
    // Do something
  }
});

As such there is no retry event.

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Thanks @avelad for the response.

Not sure if that'll do in my case, however. I am sending a Bearer <token> with the Authorization header. The server will respond with HTTP 401 and a code auth/token-expired - only then I know that the request failed and that I have to refresh the token.

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You can register a response filter to intercept the HTTP 401. If you make the filter async, it can refresh the token, then replicate the original request with the new token, and finally insert the new response in place of the first one.

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This seems common enough, so if you want to propose an API to simplify this process for users, I'd be happy to review it.

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@joeyparrish thank you! :)

If I get that right then I should be able to do somethign like this:

player.getNetworkingEngine()?.registerResponseFilter(async (req, res) => {
  if (res.status === 401) {
    const error = JSON.parse(String(res.data)) as HTTPError;
    if (error.code === 'auth/token-expired') {
      // 1. Refresh token
      // 2. fetch(res.uri)
      // 3. return new response object
    }
  }
  return res;
});

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Thanks a lot guys! With that I should be able to fix the issue! :)

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