fix(bedrock): honor generic AWS_ENDPOINT_URL env var - #423
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The service-specific override (AWS_ENDPOINT_URL_BEDROCK_RUNTIME / AWS_ENDPOINT_URL_BEDROCK_MANTLE) outranks the generic AWS_ENDPOINT_URL, which outranks the regional endpoint computed from the region. Closes #415
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Copilot review overview
🟢 Approval recommended
The implementation and test coverage match the stated endpoint precedence behavior.
Review effort: Lite
Findings: None
What changed in this PR
Extends Bedrock endpoint resolution to honor the generic AWS_ENDPOINT_URL while preserving service-specific precedence.
Changes:
- Adds generic endpoint fallback for Converse and Mantle APIs.
- Adds tests for generic usage and precedence.
| File | Description |
|---|---|
chatlas/_provider_bedrock.py |
Implements endpoint precedence and updates documentation. |
tests/test_provider_bedrock_mantle.py |
Tests generic endpoint handling and precedence. |
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Closes #415.
Most of the issue was already addressed by #406, which defaults the Bedrock
base_urlfromAWS_ENDPOINT_URL_BEDROCK_RUNTIME/AWS_ENDPOINT_URL_BEDROCK_MANTLE. This PR closes the remaining gap called out in the issue: the genericAWS_ENDPOINT_URLis now honored too, with botocore-style precedence — service-specific variable > genericAWS_ENDPOINT_URL> computed regional endpoint.Adds unit tests covering the generic var for both converse and mantle, and service-specific-outranks-generic precedence.