Add signing key rotation support

inngest / inngest-py

Python SDK for Inngest: Durable functions and workflows in Python, hosted anywhere

https://www.inngest.com/docs/reference/python

Apache License 2.0

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Closed goodoldneon closed 4 months ago

goodoldneon commented 5 months ago

Add INNGEST_SIGNING_KEY_FALLBACK env var
Retry request with fallback signing key if:
- Signature validation fails
- Fetching batch or step data from API fails with 401 or 403 status code
- Synchronization fails with with 401 or 403 status code

This implements part of the fallback signing key behavior in the SDK spec (here). The introspection endpoint is implemented by #77