Load CSS module in ReactJS + Typescript and react rewired

Question

I'm creating the initial setup of a proof of concept project using ReactJS and typescript, and I'd like to include the CSS modules in it without having to eject the webpack configuration.

Here are the steps I followed so far:

npm install -g create-react-app
create-react-app firstapp --scripts-version=react-scripts-ts
npm install react-app-rewired --save-dev
npm install --save-dev codebandits/react-app-rewire-css-modules sass-loader node-sass
package.json: "start": "react-app-rewired start --scripts-version react-scripts-ts"
config-overrides.js:

const rewireCssModules = require('react-app-rewire-css-modules'); module.exports = function override(config, env){ config = rewireCssModules(config, env);
return config; }

I correctly set my App.module.scss file, and referenced it in my App.tsx file:

import styles from './App.module.scss';

When I run the project, I have an error regarding the css module: Cannot find module './App.module.scss'.

When I do the exact same project without the typescript configuration, it works though.

What should I change for the CSS modules to be taken into account?

I came accross typings-for-css-modules-loader, but I'm not sure how to integrate it in my configuration since I didn't eject the webpack configuration.

Thanks in advance,

Thomas .T

EDIT 1: I added a global.d.ts file with:

declare module '*.css'
declare module '*.scss'

And it did the trick. I didn't use typings-for-css-modules-loader in the end.

The answer comes from this article: https://hackernoon.com/zero-config-react-typescript-css-modules-jest-with-poi-bbcedfe2383a

Thomas KiTe Trentin · Accepted Answer · 2018-06-08 04:22:48Z

4

I added a global.d.ts file with:

declare module '*.css'
declare module '*.scss'

And it did the trick. I didn't use typings-for-css-modules-loader in the end.

The answer comes from this article: https://hackernoon.com/zero-config-react-typescript-css-modules-jest-with-poi-bbcedfe2383a

Gonna accept this as an answer within 2 days.

answered Jun 8, 2018 at 4:22

Thomas KiTe Trentin

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Comments

Eric Aya · Accepted Answer · 2018-12-18 18:40:56Z

I got the workaround after googling a lot. I'm new to react js and trying to build using typescript so I found the solution and started using

react-script-ts

package. But when I started using css module faced the problem import class from './button.css' didn't work so I used import './button.css' but in this got lot of css conflicts, higher component scope css always overridden by lower component. so googled a lot and finally got the solution.

Solution From 2.1 create-react-app having support for typescript so convert your application to 2.1 above

1.create new application using `npx create-react-app my-new-app --typescript`
2. replace your old src folder in new solution
3. Rename all your css file with `*.module.css` and change the import based on that.
4. Add your package dependancy if anything missing
5. Run

source : https://joshblog.net/2018/upgrading-a-react-and-typescript-app-from-react-scripts-ts-to-create-react-app-v2-1/

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