AWS Lambda

I often see Node.js Lambda projects built using Serverless and including serverless-webpack. It is used to implement Babel and provide the latest JavaScript syntax, especially modules and top-level await. But according to this blog post, the AWS Lambda environment already supports these features, so we should no longer need to use serverless-webpack. I face several drawbacks when using webpack with Serverless: Code is transpiled (and optionally minified), making it challenging to debug from logs because line numbers and function names may differ from those in your development environment. Using ESM-only modules, such as node-fetch and D3, is not straightforward, and the list of ESM-only modules is growing daily. There could also be a performance impact because the code is converted to CommonJS. This benchmark test shows that CommonJS could perform 43% worse than ESM. There are other benefits to Babel and webpack besides transpiling to CommonJS, but these mostly cater to browsers rather than server-side usage. ...