Bug: Unable to use ESM bundling in AWS Lambda / Nodejs 14.x

[revmischa]

Bug description

If you enable "ESM" bundling with NodejsFunction you get this error:

	{
    "errorType": "Error",
    "errorMessage": "Dynamic require of \"util\" is not supported",
    "stack": [
        "Error: Dynamic require of \"util\" is not supported",
        "    at file:///var/task/index.mjs:1:820",
        "    at null.<anonymous> (/node_modules/cls-hooked/context.js:4:14)",
        "    at file:///var/task/index.mjs:1:1067",
        "    at null.<anonymous> (/node_modules/aws-xray-sdk-core/dist/lib/context_utils.js:5:11)",
        "    at file:///var/task/index.mjs:1:1067",
        "    at null.<anonymous> (/node_modules/aws-xray-sdk-core/dist/lib/aws-xray.js:2:20)",
        "    at file:///var/task/index.mjs:1:1067",
        "    at null.<anonymous> (/node_modules/aws-xray-sdk-core/dist/lib/index.js:3:18)",
        "    at file:///var/task/index.mjs:1:1067",
        "    at null.<anonymous> (/node_modules/@aws-lambda-powertools/tracer/src/provider/ProviderService.ts:4:1)"
    ]
}

Expected Behavior

Would like to use xray with ESM.

Steps to Reproduce

I'm using middy with the tracer middleware. I get the above error when I set
format: OutputFormat.ESM

Environment

• Powertools version used: 0.3.3
• Packaging format (Layers, npm): nodejsfunction
• AWS Lambda function runtime: node 14
• Debugging logs:

Related issues, RFCs

[flochaz]

Thank you for reporting it. We will have a look asap.

[flochaz]

As reported by @dreamorosi, the issue is on xray-sdk side. We will follow aws/aws-xray-sdk-node#482 resolution carefully.

[dreamorosi]

I'm going to close this issue in favor of #521 where we will be tracking efforts to support ESM bundling in Powertools.