AWS Lambda Telemetry Failure

This repo is meant to recreate an issue with the AWS Lambda Telemetry API that we are experiencing

Usage

Deployment

In order to deploy the example, you need to run the following command:

$ yarn deploy

Invocation

After successful deployment, you can invoke the deployed function by using the following command:

yarn sls invoke --function testFunction

Which should print out the logs from the last invocation.

Any log line that begins with ⚡️ TELEMETRY: is data that this telemetry extension received.

Currently this is all the data the telemetry server will receive 👇

⚡️ TELEMETRY: [{"time":"2023-02-10T20:39:01.267Z","type":"platform.initStart","record":{"initializationType":"on-demand","phase":"init","runtimeVersion":"nodejs:18.v4","runtimeVersionArn":"arn:aws:lambda:us-east-1::runtime:f2af14107aa47577b6391cef2e58e6032a5520042f7d27a21ab33c9ee5a18adb"}},{"time":"2023-02-10T20:39:01.405Z","type":"platform.telemetrySubscription","record":{"name":"index.js","state":"Subscribed","types":["platform","function"]}}]
⚡️ TELEMETRY: [{"time":"2023-02-10T20:39:01.751Z","type":"platform.initStart","record":{"initializationType":"on-demand","phase":"invoke","runtimeVersion":"nodejs:18.v4","runtimeVersionArn":"arn:aws:lambda:us-east-1::runtime:f2af14107aa47577b6391cef2e58e6032a5520042f7d27a21ab33c9ee5a18adb"}}]
⚡️ TELEMETRY: [{"time":"2023-02-10T20:39:01.865Z","type":"platform.telemetrySubscription","record":{"name":"index.js","state":"Already subscribed","types":["platform","function"]}}]
⚡️ TELEMETRY: [{"time":"2023-02-10T20:39:02.172Z","type":"function","record":"2023-02-10T20:39:02.172Z\tundefined\tERROR\tUncaught Exception \t{\"errorType\":\"Runtime.ImportModuleError\",\"errorMessage\":\"Error: Cannot find module 'does-not-exist'\\nRequire stack:\\n- /var/task/src/index.js\\n- /var/runtime/index.mjs\",\"stack\":[\"Runtime.ImportModuleError: Error: Cannot find module 'does-not-exist'\",\"Require stack:\",\"- /var/task/src/index.js\",\"- /var/runtime/index.mjs\",\"    at _loadUserApp (file:///var/runtime/index.mjs:1000:17)\",\"    at async UserFunction.js.module.exports.load (file:///var/runtime/index.mjs:1035:21)\",\"    at async start (file:///var/runtime/index.mjs:1200:23)\",\"    at async file:///var/runtime/index.mjs:1206:1\"]}\n"}]

That last function log is also only sent intermittently which is also frustrating.