FR: Distinguish between 500 errors from the server and network errors in firebase functions

[ishowta]

Calling functions when there is no network connection, for example, will return an Internal error.
If functions returns 500, it also returns an Internal error, so we cannot distinguish between the two.

In the case of auth, an auth/network-request-failed error is returned when there is no network connection.

firebase-js-sdk/packages/auth/src/api/index.ts

Line 184 in 04dcdbb

_fail(auth, AuthErrorCode.NETWORK_REQUEST_FAILED);

I would like to be able to distinguish between these for recovery and error investigation.

edit:

workaround

INTERNAL: Error on the functions side
internal: basically a network problem

[cherylEnkidu]

Hi, could you please be more specific which product of Firebase you are requesting this feature for?

[ishowta]

Sorry for the lack of clarity.
It is firebase functions.

Here is a simple sample code and output, reproduced if it goes offline after calling functions.

export const App => {
  const run = async () => {
    const listener = () => console.log("offline");
    addEventListener("offline", listener);

    const res = await httpsCallable(functions, "helloWorld")();

    console.log(res);

    removeEventListener("offline", listener);
  };

  return <button onClick={() => void run()}>Click</button>;
};