serverless-jetpack VS serverless-webpack

Notice the serverless-jetpack plugin - it takes care of packaging our app very efficiently for Serverless. There are other plugins for this, but I've discovered this one recently and it's a lot faster than others I've used so far. Read more about it on its official github page.

Serverless Jetpack

Since I was using serverless-webpack along with Prisma's serverless-webpack-prisma helper, this meant a bit of extra Webpack config setup to get it all using the same module syntax without the usual dreaded 'Unexpected token export' or import error from Node.

As you can see in the above handler.js file, we're getting CommonJS instead of modern JavaScript or TypeScript. To get these, you need webpack or some other bundler. serverless-webpack exists if you want full control over your ecosystem, but there is also serverless-bundle that gives you a set of reasonable defaults on webpack 4 out of the box. We opted into this option to get us started quickly.

cd app-backend/dynamodb yarn install To test the GraphQL endpoint locally on my machine, I’m using these three plugins for the Serverless Framework: Serverless Offline, Serverless Webpack and Serverless DynamoDB Local.

Serverless Webpack

The serverless framework supports an excellent workflow with the serverless-webpack plugin to package your functions individually with webpack. For AWS SAM, it's probably worth checking out the aws-sam-webpack-plugin, but I've found it far simpler to configure esbuild to perform the same task.