Bug: unable to import 2 AWS SDK clients at the same time.

[dreamorosi]

When running the following code on v0.1.13-beta:

import { CognitoIdentityProviderClient } from '@aws-sdk/client-cognito-identity-provider';
import { DynamoDBClient } from '@aws-sdk/client-dynamodb';
import { DynamoDBDocumentClient } from '@aws-sdk/lib-dynamodb';

const cognitoIdpClient = new CognitoIdentityProviderClient({});
const ddbDocClient = DynamoDBDocumentClient.from(new DynamoDBClient({}));

export const handler = async (event: any) => {
  console.log('event', event);
};

I get this error:

TypeError: not an object
at all (native)
INIT_REPORT Init Duration: 42.39 ms     Phase: init     Status: error   Error Type: Runtime.ExitError
TypeError: not an object
at all (native)
INIT_REPORT Init Duration: 403.65 ms    Phase: invoke   Status: error   Error Type: Runtime.ExitError

All these clients are set as externalModules and thus my function is using the ones bundled in the runtime.

If I remove one and leave the other (i.e. only DynamoDBClient or only CognitoIdentityProviderClient) then the function runs normally.

As far as I can tell, the issue seems to appear whenever importing two AWS SDK clients in the same bundle and it's not specific to these above. I have tried also other combinations like @aws-sdk/client-secrets-manger + @aws-sdk/client-cognito-identity-provider and I get the same error.

Below is my fairly basic CDK architecture, which shows how I am adding LLRT:

```ts import { Stack, type StackProps, CfnOutput } from "aws-cdk-lib"; import { Construct } from "constructs"; import { Architecture, Runtime } from "aws-cdk-lib/aws-lambda"; import { NodejsFunction, OutputFormat, type NodejsFunctionProps, } from "aws-cdk-lib/aws-lambda-nodejs"; class LlrtFunction extends NodejsFunction { public constructor( scope: Construct, id: string, props: Omit ) { const architecture = props.architecture ?? Architecture.ARM_64; const cacheDir = `cdk.out/llrt-cache/latest/${architecture}`; const binaryUrl = `https://github.com/awslabs/llrt/releases/latest/download/llrt-lambda-${architecture}.zip`; const { bundling, ...rest } = props; super(scope, id, { ...rest, runtime: Runtime.NODEJS_20_X, bundling: { target: "es2020", format: OutputFormat.ESM, commandHooks: { beforeBundling: () => [], beforeInstall: () => [], afterBundling: (input, output) => [ `if [ ! -e ${input}/${cacheDir}/bootstrap ]; then mkdir -p ${input}/${cacheDir} cd ${input}/${cacheDir} curl -L -o llrt_temp.zip ${binaryUrl} unzip llrt_temp.zip rm -rf llrt_temp.zip fi`, `cp ${input}/${cacheDir}/bootstrap ${output}/`, ], }, externalModules: [ "@aws-sdk/client-cloudwatch-events", "@aws-sdk/client-cloudwatch-logs", "@aws-sdk/client-cognito-identity", "@aws-sdk/client-cognito-identity-provider", "@aws-sdk/client-dynamodb", "@aws-sdk/client-eventbridge", "@aws-sdk/client-kms", "@aws-sdk/client-lambda", "@aws-sdk/client-s3", "@aws-sdk/client-secrets-manager", "@aws-sdk/client-ses", "@aws-sdk/client-sfn", "@aws-sdk/client-sns", "@aws-sdk/client-sqs", "@aws-sdk/client-ssm", "@aws-sdk/client-sts", "@aws-sdk/client-xray", "@aws-sdk/credential-providers", "@aws-sdk/lib-dynamodb", "@aws-sdk/s3-request-presigner", "@aws-sdk/util-dynamodb", "@smithy", "uuid", ], }, }); // @ts-expect-error this.node.defaultChild.addPropertyOverride("Runtime", "provided.al2023"); } } export class TestLlrtStack extends Stack { constructor(scope: Construct, id: string, props?: StackProps) { super(scope, id, props); const handler = new LlrtFunction(this, "Handler", { entry: "functions/docdb.ts", architecture: Architecture.ARM_64, }); new CfnOutput(this, "HandlerArn", { value: handler.functionArn, }); } } ```

As you can see the error is fairly cryptic so I can't provide any other info, but if you need more details feel free to reach out.

[richarddavison]

We have examples running s3 and dynamo at the same timme. Thanks for reporting, taking a look!

[richarddavison]

Thanks for the report. I can confirm that there was regression introduced when the Runtime Interface Client was ported to rust. Fix is coming up!

[richarddavison]

Fixed by https://github.com/awslabs/llrt/releases/tag/v0.1.14-beta