How to import a file into a react app that uses create react app as raw text?

Question

Goals

1. I want to display some code for reference from the project itself.
2. I want the display of the code to be updated with the implementation.
3. I don't want to eject from create-react-app

This react project, created with create-react-app and typescript, is going to be used to display some custom components for re-use in other projects. My goal is to have the component be used right next to the code that is using it.

How can I load the file if I don't have access to the webpack config, and I can't use fs.readFile?

Answer 1

I managed to get this working after a bit of looking around. There are two major pieces that had to be in place to make it work.

Use the appropriate loader

In this case I wanted to use the raw-loader, so I installed it as a dev dependency. yarn add -D raw-loader.

In order to actually import the file I needed to then override the webpack configuration like this:

// eslint-disable-next-line import/no-webpack-loader-syntax
import toolbarItems from '!!raw-loader!../ToolbarItems';

This loads the entire file into the variable toolbarItems. By using the !! before the loader I prevent any other webpack loaders from processing it in this specific case. This might work on its own in a plain javascript project, but in typescript...

You must provide a module to typescript

I was running into the typescript error:

Failed to compile.

/Users/cory/Code/something/custom-theme/src/pages/NavigationDemo.tsx
TypeScript error in /Users/cory/Code/something/custom-theme/src/pages/NavigationDemo.tsx(9,26):
Cannot find module '!!raw-loader!../ToolbarItems'.  TS2307

     7 |
     8 | // eslint-disable-next-line import/no-webpack-loader-syntax
  >  9 | import toolbarItems from '!!raw-loader!../ToolbarItems';
       |                          ^
    10 |
    11 | const useStyles = makeStyles({
    12 |   root: {

Simply declaring a module for the loader in a file called ToolbarItems.ts.d.ts solved the issue for me:

declare module '!!raw-loader!*' {
  const content: string;
  export default content;
}

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