Import static JSON file from assets dir in component (Angular)

Question

I am using Angular CLI (version 6). I have a small JSON file in my assets folder which I want to import into my component. I want to do this without using a GET request from my component.

What I did:

• I created a new file, typings.d.ts:

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

  ... and referred to it in tsconfig.spec.json. Here is a snippet of the referral in ts.config.spec.json:

  "files": [
      "test.ts",
      "polyfills.ts",
       "./typings.d.ts"
  ],
  

• From my component, I am trying to import my JSON file as such:

  import * as myConfig from '../../assets/config.json';
  

At that line however, I get an error message: cannot find module ../../assets/config.json.

I am quite sure that this relative path is correct (I tried several other options as well, similarly for the typings.d.ts referral - but anyway, my directory structure is just a simple Angualr CLI app:

|- src
    |   
    |-app
    |   |-component
    |       |-component.ts
    |
    |
    |-assets
        |-config.json

Any tips on how to solve this problem would be greatly appreciated.

Answer 1

The easiest way is:

1. Give the structure a name (json, xml, whatever) :

   export const myJson = { "_id":"1234", "name":"John" }

2. Change the file extension to ".ts"

3. Finally import the file

   import { myJson } from 'src/my-static-file';

   public json = myJson;

Answer 2

The new file you added should be named json-typings.d.ts with the following code:

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

Put it in your src folder (the same directory as index.html)

Then import JSON files in your component:

import * as SampleJson from "../../assets/SampleJson.json";

Also, you don't need to refer to it in ts.config.spec.json

Answer 3

You can just import myConfig from 'path/to/json' then use it in your file.