abhagsain

// the main app file
import express from "express";
import loadDb from "./loadDb"; // dummy middleware to load db (sets request.db)
import authenticate from "./authentication"; // middleware for doing authentication
import permit from "./permission"; // middleware for checking if user's role is permitted to make request

const app = express(),
      api = express.Router();

// first middleware will setup db connection

abhagsain

/**
 * Get a Google auth token given service user credentials. This function
 * is a very slightly modified version of the one found at
 * https://community.cloudflare.com/t/example-google-oauth-2-0-for-service-accounts-using-cf-worker/258220
 * 
 * @param {string} user   the service user identity, typically of the 
 *   form [user]@[project].iam.gserviceaccount.com
 * @param {string} key    the private key corresponding to user
 * @param {string} scope  the scopes to request for this token, a 
 *   listing of available scopes is provided at