moved mongo, redis setup to functions (#84)

Author: shubhbapna

server/src/db/mogoose.ts

@@ -9,8 +9,11 @@ import {
 export const PollModel = model<PollDocument>('Poll', pollSchema)
 export const StudentModel = model<StudentDocument>('Student', studentSchema)
 
-connect(process.env.MONGODB_URL).catch((err) => {
-  throw err
-})
+export async function connectMongo () {
+  await connect(process.env.MONGODB_URL)
+  db.on('open', () => {
+    console.log('Connected to mongo')
+  })
+}
 
 export const db = connection

server/src/redis.ts

@@ -2,11 +2,12 @@ import { createClient } from 'redis'
 import fs from 'fs'
 import path from 'path'
 import readline from 'readline'
+
 const client = createClient({
   url: process.env.REDIS_URL
-});
+})
 
-(async () => {
+async function connectRedis () {
   client.on('error', (err) => console.log('Redis Client Error', err))
 
   await client.connect()
@@ -25,6 +26,6 @@ const client = createClient({
     console.log(line.trim())
     client.set(line.trim(), 'instructor')
   }
-})()
+}
 
-export { client }
+export { client, connectRedis }

server/src/server.ts

@@ -6,13 +6,11 @@ import cors from 'cors'
 import cookieParser from 'cookie-parser'
 import { io } from './socket'
 import pollRouter from './routes/pollRoute'
-import { db } from './db/mogoose'
+import { connectMongo } from './db/mogoose'
 import userRouter from './routes/userRoutes'
 import { getUser } from './controllers/userController'
+import { connectRedis } from './redis'
 dotenv.config()
-db.on('open', () => {
-  console.log('Connected to mongo')
-})
 
 // starting the express server
 const app = express()
@@ -46,6 +44,8 @@ app.use('/poll', pollRouter)
 
 const server = app.listen(port, () => {
   console.log('Listening on http://localhost:' + port)
+  connectRedis()
+  connectMongo()
   io.attach(server)
   io.use(async (socket, next) => {
     try {