firefunctions/src/lib/index.ts

index.ts

/* 
* FILE NAME: index.ts
* FILE PATH: './lib/'
* AUTHOR: NAYAN HATHIWALA
* CREATED ON: 10/8/2017
* DESCRIPTION: All necessary library initialization are to be done in this file.
*/

// IMPORT LIBRARY HERE
const googleCloudDatastore = require('@google-cloud/datastore')({
  projectId: 'you-project-id',
  keyFilename: './gcloud-keyfile.json'
});

/* 
* Validate Firebase Token ID via `HEADER` or `COOKIE`
* Source: https://github.com/firebase/functions-samples/blob/master/authorized-https-endpoint/functions/index.js
*/
export const validateFireTokenId = (req: any , res: any, next: any) => {
 ...
}

/* 
* MAKE YOUR LIBARAY INITIALIZED EXPORT HERE
*/
export const datastore = googleCloudDatastore;