using tsconfig-paths with es modules

Question

I have a typescript project that uses commonjs modules, I use ts-node to run it, and tsconfig-paths to resolve tsconfig.compilerOptions.paths at runtime.

now I want my project to migrate to use es modules, so I made some changes:

• add type: module to package.json
• change module: commonjs to ES2022 in tsconfig.json
• change the command ts-node into node --loader ts-node/esm

now all things are working perfectly, but it seems that tsconfig-paths doesn't work in esm.

minimal reproductions:

• commonjs project

• es module project that is forked from the commonjs one, but modified to use es modules

in both projects:

• run npm run build to test compiling with typescript with esm
• run npm start to test ts-node
• run npm start:paths to test ts-node with tsconfig-paths

Fervency

The Node.js runtime analog of TypeScript's path mapping is subpath imports. – Interested