esbuild with only single top level package.json

[kiranpradeep]

I was following this blog which recommends multiple lambdas using single a top-level package.json with esbuild. But that way, I was not able to run sam build without installing esbuild globally. To demonstrate I created an MCVE sam [project] with 2 node.js lambdas sharing a single top-level package.json. I could successfully build this project in the below 2 ways.

1. Install esbuild globally and run sam build
2. esbuild is an npm dependency and then run npm run build (package.json build script then runs sam build)

But if I just run sam build it gives an error as in the below screenshot. Is there a way to directly run sam build with esbuild only being an npm dependency?