Bring in multiple classes from node_modules

Question

Bring in multiple classes from node_modules

During the development of my package, I have organized my repository with the following structure:

src
  - Requests.js
  - Constants.js
package.json

The package.json file contains the following information:

{
    "name": "package-name",
    "version": "1.0.0",
    "main": "src/Requests"
}

To access my module in the project, I use the following method:

import Requests from 'package-name';

However, I am facing an issue when trying to import the Constants class from the package. The compiler throws an error stating that the class cannot be found.

import Constants from 'package-name/Constants';

In order to make it work, I had to include /src in the import path like this:

import Constants from 'package-name/src/Constants';

I attempted to modify the main field in my package.json to just the directory name, but it did not resolve the issue:

"main": "src/"

javascript npm ecmascript-6

Answer 1

Answer №1

Indeed, this issue is not a bug but rather how node imports are managed by your bundler. Fortunately, there are several ways to address this situation. Here are a couple of options:

One user-friendly solution is to modify your publish command to copy those components to the root directory before publishing. This way, you can easily import them using

import Constants from 'package-name/Constants'

. While it may be slightly inconvenient for you as a developer, a simple script should be able to clean up after the publish process is completed.

Another approach would be to create a separate file, perhaps named index.js, which could look something like this:

import Requests from './Requests';
import Constants from './Constants';

export default {
   Requests,
   Constants,
};

With this setup, you can import the components as follows (remember to update your package.json to include "main": "src/index.js"):

import { Requests, Constants } from 'package-name';

It's worth noting that one drawback of this method is that when the import statement is processed by the bundler, all components will be imported even if only one is needed. This could potentially result in a larger bundle size if your library contains multiple components.

Answer 2

Indeed, this issue is not a bug but rather how node imports are managed by your bundler. Fortunately, there are several ways to address this situation. Here are a couple of options:

One user-friendly solution is to modify your publish command to copy those components to the root directory before publishing. This way, you can easily import them using

import Constants from 'package-name/Constants'

. While it may be slightly inconvenient for you as a developer, a simple script should be able to clean up after the publish process is completed.

Another approach would be to create a separate file, perhaps named index.js, which could look something like this:

import Requests from './Requests';
import Constants from './Constants';

export default {
   Requests,
   Constants,
};

With this setup, you can import the components as follows (remember to update your package.json to include "main": "src/index.js"):

import { Requests, Constants } from 'package-name';

It's worth noting that one drawback of this method is that when the import statement is processed by the bundler, all components will be imported even if only one is needed. This could potentially result in a larger bundle size if your library contains multiple components.

Bring in multiple classes from node_modules

Answer №1

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