Using Angular 12 to seamlessly import JSON files into TypeScript

My project contains a JSON file located at src/assets/version.json with the following content:

{"VERSION":"1.0.0"}

I have imported this file into a TypeScript file (e.g., *.ts) as shown below:

import * as VersionInfo from 'src/assets/version.json';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.scss']
})
export class AppComponent {

 constructor() {
   console.log(`version ${VersionInfo['VERSION']}`);
 }

}

The output of this code is:

version 1.0.0

This approach works flawlessly in Angular 11, but upon upgrading to Angular 12, I encountered an error as follows:

Should not import the named export 'VERSION' (imported as 'VersionInfo') from default-exporting module (only default export is available soon)

Here is a snippet of my tsconfig.base.json configuration:

{
  "compileOnSave": false,
  ...
  // Other configurations omitted for brevity
}

How can I resolve this error?

Answer №1

To ensure proper TypeScript configuration, make sure to include the following settings in your tsconfig.json:

{
 ...
 "compilerOptions": {
    ...
    "resolveJsonModule": true, //already included
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true // Remember to add this line
    ...
   },
...
}

After configuring the file, you can easily import the necessary module in your component by adding this line:

import VersionInfo from 'src/assets/version.json';

Answer №2

To implement this, modify the tsconfig.json file with the following code:

"compilerOptions": { "allowSyntheticDefaultImports":true }

After that, import the VersionInfo from 'src/assets/version.json' like so:

import VersionInfo from 'src/assets/version.json';

Answer №3

import { VersionInfo as DefaultVersion } from 'src/assets/version.json';

Make sure to also include the specified tsconfig entries.

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