Add session driver

src/app.ts

@@ -2,12 +2,20 @@ import * as config from "./config";
 import * as requests from "./requests";
 import { QueryResult } from "pg";
 import express from "express";
+import session from "express-session";
+import pgSessionStore from "connect-pg-simple";
 import db from "./db";
 import errorHandler from "./errors";
 
 const app = express();
 app.use(express.static('public'));
 app.use(express.urlencoded({extended: false}));
+app.use(session({
+	secret: config.sessionSecret,
+	saveUninitialized: false,
+	resave: false,
+	store: new (pgSessionStore(session))()
+}));
 
 app.get("/api/getRequests", async (request, response) => {
 	var requestCount = ( request.query.count ? parseInt(request.query.count as string, 10) : 5 );