Uncaught (in promise) unimplemented being thrown when calling loadBundle from firebase/firestore

[Jac0xb]

[REQUIRED] Describe your environment

• Operating System version: 19042.1415
• Browser version: 95.0.2 (64-bit)
• Firebase SDK version: 9.6.1
• Firebase Product: firebase/firestore

[REQUIRED] Describe the problem

Uncaught (in promise) unimplemented being thrown when calling loadBundle

Being thrown from:

https://github.com/firebase/firebase-js-sdk/blob/cdada6c68f9740d13dd6674bcb658e28e68253b6/packages/firestore/src/util/byte_stream.ts

Steps to reproduce:

Relevant Code:

// where bundle.data is text string of bundle output.

await loadBundle(fs, bundle.data);

[schmidt-sebastian]

Can you let us know a little more about your setup? Where are you running this? You are likely missing polyfills for TextEncoder, but I cannot say without knowing more about your environment.

[Jac0xb]

A react app with firebase/firestore imports.

[schmidt-sebastian]

@wu-hui We likely need to use a different TextEncoder/TextDecoder for ReactNative.

@Jac0xb You should be able to work around this in the meantime by polyfilling a TextEncoder such as https://github.com/samthor/fast-text-encoding

[Jac0xb]

@wu-hui We likely need to use a different TextEncoder/TextDecoder for ReactNative.

@Jac0xb You should be able to work around this in the meantime by polyfilling a TextEncoder such as https://github.com/samthor/fast-text-encoding

Requiring fast texting encoding still throws the error, do I need to override a global with the require?

[MegaMaddin]

Hello!

I stumbled across this today, when trying to load a bundle on the client using an ArrayBuffer instead of a ReadableStream or a string. From looking at the traces the error seems to happen once the toByteStreamReaderHelper is called. I guess this function should mimic a readable stream from the passed data array. I don't know if this is intended but the reader property closed is calling Promise.reject('unimplemented') upon initialization instead of being a cb/function pointer to it.

Although this error is thrown, the loading of the bundle works as expected. Anyone from Google who can verify my suspicion?