Is there a way to configure node.js to use absolute paths for imports?-CodePudding

What I'm basically trying to achieve is to be able to do:

import {thingOne, thingTwo} from 'functions/myFunctions.js'

instead of

import {thingOne, thingTwo} from '../../functions/myFunctions.js'

Paths are obviously hypothetical. The idea is that the functions directory exists in the root of the project - in the same directory as package.json.

I've been able to achieve this whilst using React by specifying a baseUrl in jsconfig.json, but that does nothing whilst working with a standard nodejs project. I'd prefer not to use any extra packages/dependencies for this.

I've also tried setting the environment variable NODE_PATH to './', as I've seen suggested elsewhere, but that didn't change anything either. If it's relevant, I'm using Ubuntu via WSL2, and Node.js v17.7.2. Thank you

CodePudding user response：

You can use the subpath patterns feature with subpath imports.

Consider this example:

./package.json:

{
  "name": "so-74050411",
  "version": "0.1.0",
  "type": "module",
  "imports": {
    "#root/*.mjs": "./*.mjs"
  },
  "license": "MIT"
}

./src/module.mjs:

export function greet (name) {
  console.log(`Hello ${name ?? 'world'}`);
}

./src/subdir_a/subdir_b/module_b.mjs:

import {greet} from '#root/src/module.mjs';

greet('Stack Overflow');

Then, running from the project root directory in the terminal:

$ node --version
v16.18.0

$ node src/subdir_a/subdir_b/module_b.mjs
Hello Stack Overflow

CodePudding user response：

If you are using typescript you can do something like this:

tsconfig.json

 ...
 "paths": {
      "data/*": ["src/data/*"],
      "helpers/*": ["src/helpers/*"],
    }
  },

here's some resources that can help you: https://plusreturn.com/blog/how-to-configure-a-path-alias-in-a-react-typescript-app-for-cleaner-imports/