Merge pull request #202 from AltCamp/110-feature-implement-caching

feature: implement caching

.eslintrc.js

@@ -11,6 +11,7 @@ module.exports = {
     ecmaVersion: 'latest',
   },
   globals: {
+    cache: 'readonly',
     logger: 'readonly',
   },
   rules: {

app.js

@@ -14,6 +14,7 @@ const app = express();
 initializeSentry();
 
 global.logger = Logger.createLogger({ label: ALT_CAMP });
+require('./src/common/cache');
 
 const appConfig = (app) => {
   app.use(Sentry.Handlers.requestHandler());

bin/www

@@ -5,17 +5,16 @@
  */
 
 var app = require('../app');
-var debug = require('debug')('study-buddy:server');
 var http = require('http');
 const connectDatabase = require('../utils/db');
 
-const config = require('../config');
+const { app: appConfig, db } = require('../config');
 
 /**
  * Get port from environment and store in Express.
  */
 
-var port = normalizePort(config.app.port);
+var port = normalizePort(appConfig.port);
 app.set('port', port);
 
 /**
@@ -28,7 +27,10 @@ var server = http.createServer(app);
  * Listen on provided port, on all network interfaces.
  */
 
-server.listen(port);
+cache.connect();
+connectDatabase(db.name).then(() => {
+  server.listen(port);
+});
 server.on('error', onError);
 server.on('listening', onListening);
 
@@ -83,8 +85,7 @@ function onError(error) {
  */
 
 async function onListening() {
-  connectDatabase(config.db.name);
   var addr = server.address();
   var bind = typeof addr === 'string' ? 'pipe ' + addr : 'port ' + addr.port;
-  debug('Listening on ' + bind);
+  logger.info('Listening on ' + bind);
 }

config/index.js

@@ -33,6 +33,9 @@ module.exports = {
     refresh_token: process.env.GOOGLE_REFRESH_TOKEN,
     access_token: process.env.GOOGLE_ACCESS_TOKEN,
   },
+  redis: {
+    url: process.env.REDIS_URL,
+  },
   smtpConfig: {
     host: process.env.SMTP_HOST,
     port: process.env.SMTP_PORT,

constant/index.js

@@ -45,6 +45,11 @@ module.exports = {
     PROFILEPICTURE: 1024 * 512,
   },
 
+  REDIS: {
+    CONNECTION_ERROR: 'Redis connection error',
+    KEEPING_ALIVE: 'Redis - keeping alive',
+  },
+
   VALID_IMAGE_FORMATS: {
     PNG: 'png',
     JPG: 'jpg',

docker-compose.yml

@@ -0,0 +1,10 @@
+version: '0.1'
+services:
+  redis:
+    image: redis:latest
+    ports:
+      - '6379:6379'
+    volumes:
+      - redis:/data
+volumes:
+  redis:

example.env

@@ -36,8 +36,11 @@ GOOGLE_CLIENT_SECRET=
 GOOGLE_REFRESH_TOKEN=
 GOOGLE_ACCESS_TOKEN=
 
-
+# CORS
 CORS_ALLOWED_ORIGINS=
 
 EMAIL_VERIFICATION_OTP_VALIDITY=
 PASSWORD_RESET_OTP_VALIDITY=
+
+# REDIS
+REDIS_URL=redis://localhost:6379