diff --git a/.eslintrc.json b/.eslintrc.json
index 51bc361..e4c61d2 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -13,7 +13,6 @@
 		"module": true,
 		"process": true,
 		"Exception": true,
-		"console": true,
 		"setInterval": true
 	},
 	"extends": "eslint:recommended",
diff --git a/.gitignore b/.gitignore
index 54e7ee9..d32181f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 node_modules/
 auth.json
-.idea/
\ No newline at end of file
+.idea/
+*.log
\ No newline at end of file
diff --git a/bot.js b/bot.js
index 791af9c..887b8b7 100644
--- a/bot.js
+++ b/bot.js
@@ -1,44 +1,55 @@
-const Discord = require('discord.js')
-let twitch = require('./twitch.js')
-let fs = require('fs')
-const auth = require('./auth.js')()
-let config = require('./config.json')
+const Discord = require('discord.js'),
+	twitch2 = require('./twitch.js'),
+	fs = require('fs'),
+	auth = require('./auth.js')(),
+	config = require('./config.json'),
+	logger = require('./logger.js')(),
+	cache = require('./cache.js')(100, 10)
 
-const SUPPORTED_STREAMERS = config.streamers
+const {STREAMER_NOT_LIVE} = require('./constants')
 
-let live = {
-	pedropcruz: 0,
-	drakzOfficial: 0,
-	ExilePT: 0
-}
+// once key is expired set it to be 0 (not live)
+cache.on('expired', function(key, value) {
+	if (value !== STREAMER_NOT_LIVE) {
+		cache.set(key, STREAMER_NOT_LIVE)
+	}
+})
+
+config.streamers.forEach(streamer => {
+	cache.set(streamer, 0)
+})
 
 let bot = new Discord.Client()
 bot.commands = new Discord.Collection()
 bot.aliases = new Discord.Collection()
 
 fs.readdir('./commands/', (err, files) => {
-	if (err) console.error(err)
+	if (err) {
+		logger.error(err)
+		return
+	}
 
 	let jsfiles = files.filter(
 		f => f.split('.').pop() === 'js'
 	)
+
+	logger.debug(`${jsfiles.length} commands loaded`)
 	if (jsfiles.length <= 0) {
-		return console.log('0 commands loaded.')
-	} else {
-		console.log(jsfiles.length + ' commands loaded.')
+		return
 	}
 
 	jsfiles.forEach(f => {
 		let cmds = require(`./commands/${f}`)
-		console.log(`Command ${f} loaded.`)
+		logger.debug(`Command ${f} loaded.`)
 		bot.commands.set(cmds.config.command, cmds)
 		bot.aliases.set(cmds.config.alias, cmds)
 	})
 })
 
 bot.login(auth.token)
+
 bot.on('ready', () => {
-	console.log(`Connected!\nLogged in as ${bot.user.tag}!`)
+	logger.debug(`Logged in as ${bot.user.tag}!`)
 	bot.user.setGame('www.drakz.pt')
 
 	const twitchOnline =
@@ -48,36 +59,45 @@ bot.on('ready', () => {
 			'id',
 			config.channel_announces
 		)
-		setInterval(() => {
-			live = twitch.checkTwitchStreams(
-				SUPPORTED_STREAMERS,
-				announce_channel,
-				live,
-				auth.twitch_clientId
-			)
-		}, config.twitch_checktime * 1000)
+
+		// assign new function with already bound parameters
+		let renderLiveStreams = twitch2.renderLiveStreams.bind(
+			null,
+			auth.twitch_clientId,
+			announce_channel,
+			cache,
+			config.streamers
+		)
+
+		setInterval(
+			renderLiveStreams,
+			config.twitch_checktime * 1000
+		)
 	}
 })
 
+const prefix = config.command_prefix
+
 bot.on('message', message => {
 	if (message.author.bot) return
 
-	let prefix = config.command_prefix
-	// let sender = message.author
 	let msg = message.content.toLowerCase()
-	let cont = message.content.slice(prefix.length).split(' ')
-	let args = cont.slice(1)
 
 	if (msg === 'poop') {
 		message.channel.send(':poop:')
+		return
 	}
 
 	if (msg.startsWith('hey drakzbot')) {
 		message.reply('hey!')
+		return
 	}
 
 	if (!msg.startsWith(prefix)) return
 
+	let cont = message.content.slice(prefix.length).split(' ')
+	let args = cont.slice(1)
+
 	let cmd
 	if (bot.commands.has(cont[0]))
 		cmd = bot.commands.get(cont[0])
diff --git a/cache.js b/cache.js
new file mode 100644
index 0000000..f131df8
--- /dev/null
+++ b/cache.js
@@ -0,0 +1,8 @@
+const NodeCache = require('node-cache')
+
+module.exports = function(ttl = 100, checkPeriod = 120) {
+	return new NodeCache({
+		stdTTL: ttl,
+		checkperiod: checkPeriod
+	})
+}
diff --git a/constants.js b/constants.js
new file mode 100644
index 0000000..00aa395
--- /dev/null
+++ b/constants.js
@@ -0,0 +1,4 @@
+/* eslint-disable */
+
+const STREAMER_NOT_LIVE = 0
+const STREAMER_LIVE = 1
diff --git a/logger.js b/logger.js
new file mode 100644
index 0000000..feccf21
--- /dev/null
+++ b/logger.js
@@ -0,0 +1,39 @@
+const {
+	createLogger,
+	format,
+	transports
+} = require('winston')
+const {combine, timestamp, printf} = format
+const customFormat = printf(info => {
+	return `${info.timestamp} ${info.level}: ${info.message}`
+})
+
+module.exports = () => {
+	const logger = createLogger({
+		level: 'error',
+		format: combine(
+			format.splat(),
+			timestamp(),
+			customFormat
+		),
+		transports: [
+			new transports.File({
+				filename: 'error.log',
+				level: 'error'
+			})
+		],
+		exceptionHandlers: [
+			new transports.File({filename: 'exceptions.log'})
+		]
+	})
+
+	if (process.env.NODE_ENV !== 'production') {
+		logger.add(
+			new transports.Console({
+				level: 'debug'
+			})
+		)
+	}
+
+	return logger
+}
diff --git a/package-lock.json b/package-lock.json
index 974c987..b3d5c24 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -149,10 +149,10 @@
 			"integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
 		},
 		"async": {
-			"version": "1.0.0",
+			"version": "1.5.2",
 			"resolved":
-				"https://registry.npmjs.org/async/-/async-1.0.0.tgz",
-			"integrity": "sha1-+PwEyjoTeErenhZBr5hXjPvWR6k="
+				"https://registry.npmjs.org/async/-/async-1.5.2.tgz",
+			"integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo="
 		},
 		"async-limiter": {
 			"version": "1.0.0",
@@ -499,6 +499,24 @@
 				"https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
 			"integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c="
 		},
+		"color": {
+			"version": "0.8.0",
+			"resolved":
+				"https://registry.npmjs.org/color/-/color-0.8.0.tgz",
+			"integrity": "sha1-iQwHw/1OZJU3Y4kRz2keVFi2/KU=",
+			"requires": {
+				"color-convert": "0.5.3",
+				"color-string": "0.3.0"
+			},
+			"dependencies": {
+				"color-convert": {
+					"version": "0.5.3",
+					"resolved":
+						"https://registry.npmjs.org/color-convert/-/color-convert-0.5.3.tgz",
+					"integrity": "sha1-vbbGnOZg+t/+CwAHzER+G59ygr0="
+				}
+			}
+		},
 		"color-convert": {
 			"version": "1.9.1",
 			"resolved":
@@ -514,14 +532,38 @@
 			"version": "1.1.3",
 			"resolved":
 				"https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
-			"integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
-			"dev": true
+			"integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU="
+		},
+		"color-string": {
+			"version": "0.3.0",
+			"resolved":
+				"https://registry.npmjs.org/color-string/-/color-string-0.3.0.tgz",
+			"integrity": "sha1-J9RvtnAlxcL6JZk7+/V55HhBuZE=",
+			"requires": {
+				"color-name": "1.1.3"
+			}
+		},
+		"colornames": {
+			"version": "0.0.2",
+			"resolved":
+				"https://registry.npmjs.org/colornames/-/colornames-0.0.2.tgz",
+			"integrity": "sha1-2BH9bIT1kClJmorEQ2ICk1uSvjE="
 		},
 		"colors": {
-			"version": "1.0.3",
+			"version": "1.1.2",
+			"resolved":
+				"https://registry.npmjs.org/colors/-/colors-1.1.2.tgz",
+			"integrity": "sha1-FopHAXVran9RoSzgyXv6KMCE7WM="
+		},
+		"colorspace": {
+			"version": "1.0.1",
 			"resolved":
-				"https://registry.npmjs.org/colors/-/colors-1.0.3.tgz",
-			"integrity": "sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs="
+				"https://registry.npmjs.org/colorspace/-/colorspace-1.0.1.tgz",
+			"integrity": "sha1-yZx5btMRKLmHalLh7l7gOkpxl0k=",
+			"requires": {
+				"color": "0.8.0",
+				"text-hex": "0.0.0"
+			}
 		},
 		"combined-stream": {
 			"version": "1.0.5",
@@ -661,12 +703,6 @@
 				}
 			}
 		},
-		"cycle": {
-			"version": "1.0.3",
-			"resolved":
-				"https://registry.npmjs.org/cycle/-/cycle-1.0.3.tgz",
-			"integrity": "sha1-IegLK+hYD5i0aPN5QwZisEbDStI="
-		},
 		"dashdash": {
 			"version": "1.14.1",
 			"resolved":
@@ -749,6 +785,17 @@
 				"https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz",
 			"integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o="
 		},
+		"diagnostics": {
+			"version": "1.1.0",
+			"resolved":
+				"https://registry.npmjs.org/diagnostics/-/diagnostics-1.1.0.tgz",
+			"integrity": "sha1-4QkJALSVI+hSe+IPCBJ1IF8q42o=",
+			"requires": {
+				"colorspace": "1.0.1",
+				"enabled": "1.0.2",
+				"kuler": "0.0.0"
+			}
+		},
 		"discord.js": {
 			"version": "11.2.1",
 			"resolved":
@@ -791,6 +838,15 @@
 			"integrity": "sha1-2wQ1IcldfjA/2PNFvtwzSc+wcp4=",
 			"dev": true
 		},
+		"enabled": {
+			"version": "1.0.2",
+			"resolved":
+				"https://registry.npmjs.org/enabled/-/enabled-1.0.2.tgz",
+			"integrity": "sha1-ll9lE9LC0cX0ZStkouM5ZGf8L5M=",
+			"requires": {
+				"env-variable": "0.0.3"
+			}
+		},
 		"end-of-stream": {
 			"version": "1.4.0",
 			"resolved":
@@ -800,6 +856,20 @@
 				"once": "1.4.0"
 			}
 		},
+		"env-variable": {
+			"version": "0.0.3",
+			"resolved":
+				"https://registry.npmjs.org/env-variable/-/env-variable-0.0.3.tgz",
+			"integrity": "sha1-uGwWQb5WECZ9UG8YBx6nbXBwl8s="
+		},
+		"erlpack": {
+			"version":
+				"github:hammerandchisel/erlpack#674ebfd3439ba4b7ce616709821d27630f7cdc61",
+			"requires": {
+				"bindings": "1.3.0",
+				"nan": "2.7.0"
+			}
+		},
 		"error-ex": {
 			"version": "1.3.1",
 			"resolved":
@@ -1206,12 +1276,6 @@
 				"https://registry.npmjs.org/extsprintf/-/extsprintf-1.3.0.tgz",
 			"integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU="
 		},
-		"eyes": {
-			"version": "0.1.8",
-			"resolved":
-				"https://registry.npmjs.org/eyes/-/eyes-0.1.8.tgz",
-			"integrity": "sha1-Ys8SAjTGg3hdkCNIqADvPgzCC8A="
-		},
 		"fast-deep-equal": {
 			"version": "1.0.0",
 			"resolved":
@@ -1239,6 +1303,12 @@
 			"integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=",
 			"dev": true
 		},
+		"fecha": {
+			"version": "2.3.2",
+			"resolved":
+				"https://registry.npmjs.org/fecha/-/fecha-2.3.2.tgz",
+			"integrity": "sha1-Ng8DXdbt2VS8lYH5XypKfyo1BcE="
+		},
 		"ffmpeg-binaries": {
 			"version": "3.2.2-3",
 			"resolved":
@@ -2021,6 +2091,15 @@
 				"verror": "1.10.0"
 			}
 		},
+		"kuler": {
+			"version": "0.0.0",
+			"resolved":
+				"https://registry.npmjs.org/kuler/-/kuler-0.0.0.tgz",
+			"integrity": "sha1-tmu0a5NOVQ9Z2BiEjgq7pPf1VTw=",
+			"requires": {
+				"colornames": "0.0.2"
+			}
+		},
 		"leven": {
 			"version": "2.1.0",
 			"resolved":
@@ -2427,6 +2506,17 @@
 				}
 			}
 		},
+		"logform": {
+			"version": "1.2.2",
+			"resolved":
+				"https://registry.npmjs.org/logform/-/logform-1.2.2.tgz",
+			"integrity":
+				"sha512-a0TCbuqQWYhVdLie9f0tEP33bMxniAuw2StG1c5KhiTANm+RBRNpbSiGrNGpaiTZeoCiVWVsL+V5F0fpy7Q2Og==",
+			"requires": {
+				"colors": "1.1.2",
+				"fecha": "2.3.2"
+			}
+		},
 		"long": {
 			"version": "3.2.0",
 			"resolved":
@@ -2713,6 +2803,12 @@
 				"wrappy": "1.0.2"
 			}
 		},
+		"one-time": {
+			"version": "0.0.4",
+			"resolved":
+				"https://registry.npmjs.org/one-time/-/one-time-0.0.4.tgz",
+			"integrity": "sha1-+M33eISCb+Tf+T46nMN7HkSAdC4="
+		},
 		"onetime": {
 			"version": "2.0.1",
 			"resolved":
@@ -3799,6 +3895,12 @@
 				"tar": "2.2.1"
 			}
 		},
+		"text-hex": {
+			"version": "0.0.0",
+			"resolved":
+				"https://registry.npmjs.org/text-hex/-/text-hex-0.0.0.tgz",
+			"integrity": "sha1-V4+8haapJjbkLdF7QdAhjM6esrM="
+		},
 		"text-table": {
 			"version": "0.2.0",
 			"resolved":
@@ -3847,6 +3949,12 @@
 				"punycode": "1.4.1"
 			}
 		},
+		"triple-beam": {
+			"version": "1.1.0",
+			"resolved":
+				"https://registry.npmjs.org/triple-beam/-/triple-beam-1.1.0.tgz",
+			"integrity": "sha1-KsOHyMS9BL0mxh34kaYHn4WS/hA="
+		},
 		"tunnel-agent": {
 			"version": "0.6.0",
 			"resolved":
@@ -3981,19 +4089,28 @@
 			}
 		},
 		"winston": {
-			"version": "2.4.0",
+			"version": "3.0.0-rc1",
 			"resolved":
-				"https://registry.npmjs.org/winston/-/winston-2.4.0.tgz",
-			"integrity": "sha1-gIBQuT1SZh7Z+2wms/DIJnCLCu4=",
+				"https://registry.npmjs.org/winston/-/winston-3.0.0-rc1.tgz",
+			"integrity":
+				"sha512-aNtKirnK2UEe5v56SK0TIEr5ylyYdXyjAaIJXZTk21UlNx7FQclTkVU2T1ZzMtdDM+Rk2b7vrI/e/4n8U84XaQ==",
 			"requires": {
-				"async": "1.0.0",
-				"colors": "1.0.3",
-				"cycle": "1.0.3",
-				"eyes": "0.1.8",
+				"async": "1.5.2",
+				"diagnostics": "1.1.0",
 				"isstream": "0.1.2",
-				"stack-trace": "0.0.10"
+				"logform": "1.2.2",
+				"one-time": "0.0.4",
+				"stack-trace": "0.0.10",
+				"triple-beam": "1.1.0",
+				"winston-transport": "3.0.1"
 			}
 		},
+		"winston-transport": {
+			"version": "3.0.1",
+			"resolved":
+				"https://registry.npmjs.org/winston-transport/-/winston-transport-3.0.1.tgz",
+			"integrity": "sha1-gAixXu9WYMT7P6CU1YzL0IUoxY0="
+		},
 		"wordwrap": {
 			"version": "1.0.0",
 			"resolved":
diff --git a/package.json b/package.json
index 6babcdc..f528ccb 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
 		"urban": "^0.3.1",
 		"uws": "^0.14.5",
 		"weather-js": "^2.0.0",
-		"winston": "^2.4.0"
+		"winston": "^3.0.0-rc1"
 	},
 	"scripts": {
 		"start": "node bot.js",
diff --git a/twitch.js b/twitch.js
index cf95fef..c516712 100644
--- a/twitch.js
+++ b/twitch.js
@@ -1,75 +1,86 @@
-const Discord = require('discord.js')
-const https = require('https')
+const Discord = require('discord.js'),
+	https = require('https'),
+	logger = require('./logger.js')()
 
-function checkTwitchStreams(
-	streamers,
+const {
+	STREAMER_LIVE,
+	STREAMER_NOT_LIVE
+} = require('./constants')
+
+module.exports.renderLiveStreams = function(
+	clientId,
 	channel,
-	liveStatus,
-	clientId
+	cache,
+	streamers
 ) {
+	const activeStreams = getActiveStreams(
+		clientId,
+		cache,
+		streamers
+	)
+	activeStreams.forEach(stream =>
+		renderLiveStream(channel, stream)
+	)
+}
+
+function renderLiveStream(channel, stream) {
+	// TODO: the following constants need
+	// to be refactored into localizable strings
+
+	const title = `O streamer ${
+		stream.channel.display_name
+	} acabou de entrar em direto na Twitch!`
+
+	const description =
+		'Acompanha já a transmissão em direto!'
+
+	const url = `https://www.twitch.tv/${
+		stream.channel.display_name
+	}`
+
+	const titleField = 'Título'
+	const viewersField = 'Viewers: '
+
+	const embed = new Discord.RichEmbed()
+		.setTitle(title)
+		.setDescription(description)
+		.setThumbnail(stream.preview.small)
+		.addField(titleField, stream.channel.status, true)
+		.addField(viewersField, stream.viewers, true)
+		.setURL(url)
+		.setColor('#6034b1')
+		.setFooter('João Rodrigues © 2018')
+
+	channel.send({embed})
+}
+
+function getActiveStreams(clientId, cache, streamers) {
+	let activeStreamers = []
+
 	streamers.forEach(name => {
+		const url = `https://api.twitch.tv/kraken/streams/${name}?client_id=${clientId}`
 		https
-			.get(
-				`https://api.twitch.tv/kraken/streams/${name}?client_id=${clientId}`,
-				res => {
-					res.on('data', chunk => {
-						let result
-						try {
-							result = JSON.parse(chunk)
-						} catch (e) {
-							result = false
-							console.log(e)
-						}
+			.get(url, res => {
+				res.on('data', body => {
+					const payload = JSON.parse(body)
+					const isLive =
+						payload.stream &&
+						payload.stream.channel.display_name &&
+						cache.get(name) === STREAMER_NOT_LIVE
 
-						if (result) {
-							if (result.stream !== null) {
-								if (liveStatus[name] === 0) {
-									if (
-										result.stream.channel.display_name !==
-										null
-									) {
-										const embed = new Discord.RichEmbed()
-											.setTitle(
-												'O streamer ' +
-													result.stream.channel
-														.display_name +
-													' acabou de entrar em direto na Twitch!'
-											)
-											.setDescription(
-												'Acompanha já a transmissão em direto!'
-											)
-											.setThumbnail(
-												result.stream.preview.small
-											)
-											.addField(
-												'Título',
-												result.stream.channel.status,
-												true
-											)
-											.addField(
-												'Viewers: ',
-												result.stream.viewers,
-												true
-											)
-											.setURL(
-												'https://www.twitch.tv/' +
-													result.stream.channel.display_name
-											)
-											.setColor('#6034b1')
-											.setFooter('João Rodrigues © 2018')
-										channel.send({embed})
-										liveStatus[name] = 1
-										return liveStatus
-									}
-								}
-							}
-						}
-					})
-				}
-			)
-			.on('error', e => console.log('Erro: ', e.message))
+					if (isLive) {
+						activeStreamers.push(payload.stream)
+						cache.set(name, STREAMER_LIVE)
+						logger.debug(`Streamer ${name} is live`)
+					}
+				})
+			})
+			.on('error', err => parseError(err))
 	})
-	return liveStatus
+
+	return activeStreamers
 }
 
-module.exports.checkTwitchStreams = checkTwitchStreams
+function parseError(err) {
+	logger.error('Error while using Twitch API:', err.message)
+}