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fix(amazon-bedrock): extract region from inference profile ARNs

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Application inference profile ARNs encode the region
(arn:aws:bedrock:<region>:<account>:...) but the provider ignored it,
falling through to AWS_REGION which may point to a different region.
Extract the region from the ARN when present, taking priority over
environment variables.

Fixes #4860
This commit is contained in:
ajm_ensighten
2026-06-08 17:01:51 -05:00
parent 20b78eafb4
commit 8cef3c8d7f
2 changed files with 33 additions and 4 deletions
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26
packages/ai/test/bedrock-endpoint-resolution.test.ts
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@@ -128,4 +128,30 @@ describe("bedrock endpoint resolution", () => {
expect(config.endpoint).toBe("https://bedrock-vpc.example.com");
expect(config.region).toBe("us-west-2");
});
it("extracts region from inference profile ARN regardless of AWS_REGION", async () => {
process.env.AWS_REGION = "us-east-1";
const baseModel = getModel("amazon-bedrock", "us.anthropic.claude-opus-4-8");
const model: Model<"bedrock-converse-stream"> = {
...baseModel,
id: "arn:aws:bedrock:us-west-2:123456789012:application-inference-profile/abc123",
};
const config = await captureClientConfig(model);
expect(config.region).toBe("us-west-2");
});
it("extracts region from GovCloud inference profile ARN", async () => {
process.env.AWS_REGION = "us-east-1";
const baseModel = getModel("amazon-bedrock", "us.anthropic.claude-opus-4-8");
const model: Model<"bedrock-converse-stream"> = {
...baseModel,
id: "arn:aws-us-gov:bedrock:us-gov-west-1:123456789012:application-inference-profile/abc123",
};
const config = await captureClientConfig(model);
expect(config.region).toBe("us-gov-west-1");
});
});