Switch to config dep to handle env vars

Author: Ashley Bibizadeh

config.js

@@ -0,0 +1,19 @@
+const config = require('config');
+
+module.exports = function () {
+  if (!config.get('dbString')) {
+    throw new Error('Environment variable \'dbString\' is not defined');
+  }
+
+  if (!config.get('jwtPrivateKey')) {
+    throw new Error('Environment variable \'jwt_secret_key\' is not defined');
+  }
+
+  if (!config.get('mailServer.auth.user')) {
+    throw new Error('Environment variable \'mailServer_user\' is not defined');
+  }
+
+  if (!config.get('mailServer.auth.pass')) {
+    throw new Error('Environment variable \'mailServer_pass\' is not defined');
+  }
+}

config/custom-environment-variables.json

@@ -0,0 +1,10 @@
+{
+  "dbString": "db_connection_string",
+  "jwtPrivateKey": "jwt_secret_key",
+  "mailServer": {
+      "auth": {
+          "user": "mailServer_user",
+          "pass": "mailServer_pass"
+      }
+  }
+}

config/default.json

@@ -0,0 +1,13 @@
+{
+  "dbString": "",
+  "jwtPrivateKey": "",
+  "mailServer": {
+    "host": "-HOST-",
+    "auth": {
+      "user": "",
+      "pass": ""
+    },
+    "from": "-FROM-EMAIL-",
+    "subject": "Password Reset"
+  }
+}

config/test.json

@@ -0,0 +1,13 @@
+{
+  "dbString": "mongodb://localhost/playground_tests",
+  "jwtPrivateKey": "1234",
+  "mailServer": {
+    "host": "[email protected]",
+    "auth": {
+      "user": "test",
+      "pass": "123"
+    },
+    "from": "Test",
+    "subject": "Password Reset"
+  }
+}

package.json

@@ -31,6 +31,7 @@
     }
   },
   "dependencies": {
+    "config": "3.1.0",
     "apollo-boost": "0.3.1",
     "apollo-cache-inmemory": "1.5.1",
     "apollo-client": "2.5.1",

server.js

@@ -1,6 +1,6 @@
 import 'babel-polyfill';
 import 'isomorphic-unfetch';
-require('dotenv').config({ path: 'variables.env' });
+import config from 'config';
 import path from 'path';
 import fs from 'fs';
 import express from 'express';
@@ -33,12 +33,15 @@ import { resolvers } from './src/resolvers';
 import User from './src/models/User';
 
 // Connect MongoDB
-mongoose.connect(process.env.DB_CONNECTION_STRING, { useNewUrlParser: true }).then(() => {
+mongoose.connect(config.get('dbString'), { useNewUrlParser: true }).then(() => {
   console.log('Connection to DB successful');
 }).catch(err => {
   console.log(`Connection to DB Error: ${err}`);
 });
 
+// check env vars
+require('./config')();
+
 const app = express();
 const PORT = process.env.PORT || 3000;
 
@@ -76,7 +79,7 @@ app.use(async (req, res, next) => {
   const token = req.cookies.token ? req.cookies.token : null;
   if (token !== null) {
     try {
-      const currentUser = await jwt.verify(token, process.env.JWT_SECRET);
+      const currentUser = await jwt.verify(token, config.get('jwtPrivateKey'));
       req.currentUser = currentUser;
     } catch (err) {
       //   console.error(err);
@@ -159,10 +162,10 @@ app.get(['*/:param', '*'], (req, res) => {
 app.post('/password-reset', (req, response) => {
 
   var mailer = nodemailer.createTransport({
-    host: process.env.NODEMAILER_HOST,
+    host: config.get('mailServer.host'),
     auth: {
-      user: process.env.NODEMAILER_AUTH_USER,
-      pass: process.env.NODEMAILER_AUTH_PW
+      user: config.get('mailServer.auth.user'),
+      pass: config.get('mailServer.auth.pass')
     }
   });
 
@@ -172,9 +175,9 @@ app.post('/password-reset', (req, response) => {
   }));
 
   mailer.sendMail({
-    from: process.env.NODEMAILER_FROM_EMAIL,
+    from: config.get('mailServer.from'),
     to: req.body.email,
-    subject: 'React Starter Kit - Password Reset',
+    subject: config.get('mailServer.subject'),
     template: 'passwordReset',
     context: {
       email: req.body.email,

src/resolvers.js

@@ -3,6 +3,7 @@ const bcrypt = require('bcrypt');
 var generator = require('generate-password');
 const axios = require('axios');
 const webConfig = require('./../webConfig');
+const config = require('config');
 
 const createToken = (user, secret, expiresIn) => {
 
@@ -67,7 +68,7 @@ exports.resolvers = {
         password
       }).save();
 
-      return { token: createToken(newUser, process.env.JWT_SECRET, "1hr") };
+      return { token: createToken(newUser, config.get('jwtPrivateKey'), "1hr") };
     },
 
     signinUser: async (root, { email, password }, { User }) => {
@@ -83,7 +84,7 @@ exports.resolvers = {
         throw new Error('inValid password');
       }
 
-      return { token: createToken(user, process.env.JWT_SECRET, "1hr") };
+      return { token: createToken(user, config.get('jwtPrivateKey'), "1hr") };
 
     },