Using Third Party NPM packages in Angular-Cli

Question

I have read countless tutorials on how to use third party packages but none actually say what needs to happen in the component.ts to make things work in regards to the import statement and how to get access to the function.

package: https://www.npmjs.com/package/@vote539/excel-as-json

Here are the steps I followed:

• 1) Npm Install excel-as-json --save

• 2) Add script to angluar-cli.json scripts array

• 3) Add typings in typings.d.ts
• 4) Add import statesments

1) Using Angular-Cli I installed the package

I have added this package to my scripts array inside angular-cli.json.

2) .Angular-Cli.json

...
  "styles": [
        "styles.scss"
      ],
      "scripts": [ "../node_modules/excel-as-json/lib/excel-as-json.js" ],
      "environmentSource": "environments/environment.ts",
      "environments": {
...

3) I added in some typings

typings.d.ts

declare var module: {
  id: string;
};
declare var require: any;

4) Inside my component.ts file I have added in the import statement

convertExcel = require('excel-as-json').processFile;

and then in my constructor I added in the code needed to run the conversion:

compoent.ts

export class DashboardComponent implements OnInit{ 
  constructor() {
    convertExcel('../assets/excel/assignedresources.xlsx', '../assets/excel/assignedresources.json');
   }

    ngOnInit() {

      }
  }

I tried many various of the import state, Always getting the following errors:

errors

Cannot find module 'excel-as-json'.)
(14,5): Cannot find name 'convertExcel'.)