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chore(cdk): use RegionInfo instead of aws-sdk v2 for region domain suffix #31008

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wants to merge 8 commits into from
22 changes: 6 additions & 16 deletions packages/aws-cdk/lib/api/aws-auth/sdk.ts
Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import * as region_info from '@aws-cdk/region-info';
import * as AWS from 'aws-sdk';
import type { ConfigurationOptions } from 'aws-sdk/lib/config-base';
import { debug, trace } from './_env';
Expand All @@ -6,21 +7,6 @@ import { cached } from './cached';
import { Account } from './sdk-provider';
import { traceMethods } from '../../util/tracing';

// We need to map regions to domain suffixes, and the SDK already has a function to do this.
// It's not part of the public API, but it's also unlikely to go away.
//
// Reuse that function, and add a safety check, so we don't accidentally break if they ever
// refactor that away.

/* eslint-disable @typescript-eslint/no-require-imports */
const regionUtil = require('aws-sdk/lib/region_config');
require('aws-sdk/lib/maintenance_mode_message').suppress = true;
/* eslint-enable @typescript-eslint/no-require-imports */

if (!regionUtil.getEndpointSuffix) {
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@comcalvi comcalvi Aug 12, 2024

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Our unit tests mock this function so it can be tested. Please remove those mocks and ensure the tests still pass.

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Originally I removed this but it caused test/api/logs/logs-monitor.test.ts to fail.

I have it passing by changing the expected num of stderr errors to 2, and pointing the check of the error content to the second index. Let me know if there's a different approach you would rather I take with this.

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So you removed the mock and that caused that test to fail? What did it fail with?

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When removing the line require('aws-sdk/lib/maintenance_mode_message').suppress = true;, the test suite fails with a message that it was expecting one stderr message. I have left the test in that was failing, and have got it to pass by setting it to expect 2 stderr messages

This commit passes the tests without any tests / mocks being removed:
07d4e30

throw new Error('This version of AWS SDK for JS does not have the \'getEndpointSuffix\' function!');
}

export interface ISDK {
/**
* The region this SDK has been instantiated for
Expand Down Expand Up @@ -291,7 +277,11 @@ export class SDK implements ISDK {
}

public getEndpointSuffix(region: string): string {
return regionUtil.getEndpointSuffix(region);
const suffix = region_info.RegionInfo.get(region).domainSuffix;
if (!suffix) {
throw new Error(`Could not find domainSuffix in RegionInfo for ${region}`);
}
return suffix;
}

/**
Expand Down
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