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<https://github.com/flyteorg/flyte/issues/5079|#5079 [BUG] `flytekit` uses `fork` when requesting remote OAuth credentials, which is not supported on Windows>
Issue created by <https://github.com/ai-rnatour|ai-rnatour> on &lt;!date^1710878555^undefined|2024-03-19T20:02:35Z&gt;
*Describe the bug*

When requesting remote OAuth credentials via a user's default browser, `flytekit` is hardcoded to use `fork` to launch a background process that listens for the credential callback. Windows does not support `fork`, so users receive an error.

Code <https://github.com/flyteorg/flytekit/blob/4d42399079535c3582c9adfad5791253dcbd045e/flytekit/clients/auth/auth_client.py#L348|link>

*Expected behavior*

`flytekit` should use the `spawn` method or, better yet, the OS default to launch this background service.

Python <https://docs.python.org/3/library/multiprocessing.html#contexts-and-start-methods|docs>

*Additional context to reproduce*

_No response_

*Screenshots*

_No response_

*Are you sure this issue hasn't been raised already?*

• Yes

*Have you read the Code of Conduct?*

• Yes
<https://github.com/flyteorg/flyte|flyteorg/flyte>

<https://github.com/flyteorg/flyte/issues/5079|#5079 [BUG] `flytekit` uses `fork` when requesting remote OAuth credentials, which is not supported on Windows>
Issue closed as completed by <https://github.com/thomasjpfan|thomasjpfan>
<https://github.com/flyteorg/flyte|flyteorg/flyte>