How to import JSON File into a TypeScript file?

As stated in this reddit post, after Angular 7, you can simplify things to these 2 steps:

1. Add those three lines to compilerOptions in your tsconfig.json file:

"resolveJsonModule": true,
"esModuleInterop": true,
"allowSyntheticDefaultImports": true

2. Import your json data:

import myData from '../assets/data/my-data.json';

And that's it. You can now use myDatain your components/services.

Thanks for the input guys, I was able to find the fix, I added and defined the json on top of the app.component.ts file:

var json = require('./[yourFileNameHere].json');

This ultimately produced the markers and is a simple line of code.

Aonepathan's one-liner was working for me until a recent typescript update.

I found Jecelyn Yeen's post which suggests posting this snippet into your TS Definition file

add file typings.d.ts to the project's root folder with below content

declare module "*.json" {
    const value: any;
    export default value;
}

and then import your data like this:

import * as data from './example.json';

update July 2019:

Typescript 2.9 (docs) introduced a better, smarter solution. Steps:

1. Add resolveJsonModule support with this line in your tsconfig.json file:

"compilerOptions": {
    ...
    "resolveJsonModule": true
  }

the import statement can now assumes a default export:

import data from './example.json';

and intellisense will now check the json file to see whether you can use Array etc. methods. pretty cool.