diff --git a/.gitignore b/.gitignore
index 9daa824..66f258d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,5 @@
 .DS_Store
 node_modules
+text_files/*
+uploads/*
+videos/*
diff --git a/helpers/parameters.js b/helpers/parameters.js
index c69cc3b..f064869 100644
--- a/helpers/parameters.js
+++ b/helpers/parameters.js
@@ -1,10 +1,10 @@
 function getServiceType(service_type) {
 	switch(service_type) {
-		case "video":
+		case 'video':
 			return 3;
 		break;
 
-		case "texto":
+		case 'texto':
 			return 4;
 		break;
 	}
@@ -12,11 +12,11 @@ function getServiceType(service_type) {
 
 function getLanguage(language) {
 	switch(language) {
-		case "portugues":
+		case 'portugues':
 			return 1;
 		break;
 
-		case "glosa":
+		case 'glosa':
 			return 2;
 		break;
 	}
@@ -24,19 +24,19 @@ function getLanguage(language) {
 
 function getPosition(position) {
 	switch(position) {
-		case "superior-esquerdo":
+		case 'superior-esquerdo':
 			return 1;
 		break;
 
-		case "superior-direito":
+		case 'superior-direito':
 			return 2;
 		break;
 
-		case "inferior-direito":
+		case 'inferior-direito':
 			return 3;
 		break;
 
-		case "inferior-esquerdo":
+		case 'inferior-esquerdo':
 			return 4;
 		break;
 	}
@@ -44,15 +44,15 @@ function getPosition(position) {
 
 function getSize(size) {
 	switch(size) {
-		case "pequeno":
+		case 'pequeno':
 			return 1;
 		break;
 
-		case "medio":
+		case 'medio':
 			return 2;
 		break;
 
-		case "grande":
+		case 'grande':
 			return 3;
 		break;
 	}
@@ -60,18 +60,18 @@ function getSize(size) {
 
 function getTransparency(transparency) {
 	switch(transparency) {
-		case "opaco":
+		case 'opaco':
 			return 0;
 		break;
 
-		case "transparente":
+		case 'transparente':
 			return 1;
 		break;
 	}
 };
 
 function checkServiceType(service_type) {
-	var t_types = ["video", "texto"];
+	var t_types = ['video', 'texto'];
 
 	for (var i = 0; i < t_types.length; i++){
 		if (service_type === t_types[i]) {
@@ -85,7 +85,7 @@ function checkServiceType(service_type) {
 };
 
 function checkLanguage(language) {
-	var t_types = ["portugues", "glosa"];
+	var t_types = ['portugues', 'glosa'];
 
 	for (var i = 0; i < t_types.length; i++){
 		if (language === t_types[i]) {
@@ -99,7 +99,7 @@ function checkLanguage(language) {
 };
 
 function checkPosition(position) {
-	var t_types = ["superior-esquerdo", "superior-direito", "inferior-esquerdo", "inferior-direito"];
+	var t_types = ['superior-esquerdo', 'superior-direito', 'inferior-esquerdo', 'inferior-direito'];
 
 	for (var i = 0; i < t_types.length; i++){
 		if (position === t_types[i]) {
@@ -113,7 +113,7 @@ function checkPosition(position) {
 };
 
 function checkSize(size) {
-	var t_types = ["pequeno", "medio", "grande"];
+	var t_types = ['pequeno', 'medio', 'grande'];
 
 	for (var i = 0; i < t_types.length; i++){
 		if (size === t_types[i]) {
@@ -127,7 +127,7 @@ function checkSize(size) {
 };
 
 function checkTransparency(transparency) {
-	var t_types = ["opaco", "transparente"];
+	var t_types = ['opaco', 'transparente'];
 
 	for (var i = 0; i < t_types.length; i++){
 		if (transparency === t_types[i]) {
@@ -140,17 +140,13 @@ function checkTransparency(transparency) {
 	}
 };
 
-function errorMessage(message) {
-	return { "error": message }
-};
-
 function checkVideo(file) {
-    var accepted_file_types = ["flv", "ts", "avi", "mp4", "mov", "webm", "wmv", "mkv",];
+    var accepted_file_types = ['flv', 'ts', 'avi', 'mp4', 'mov', 'webm', 'wmv', 'mkv',];
     return check_type(file, accepted_file_types)
 };
 
 function checkSubtitle(file) {
-    var accepted_file_types = ["srt"];
+    var accepted_file_types = ['srt'];
     return check_type(file, accepted_file_types)
 };
 
@@ -175,6 +171,10 @@ function check_type(file, accepted_file_types) {
   	return isValidFile;
 };
 
+function errorMessage(message) {
+	return { 'error': message }
+};
+
 module.exports.getServiceType = getServiceType;
 module.exports.getLanguage = getLanguage;
 module.exports.getPosition = getPosition;
diff --git a/server.js b/server.js
index 8ef34d1..aee4840 100644
--- a/server.js
+++ b/server.js
@@ -2,7 +2,7 @@ var parameters = require('./helpers/parameters');
 var exec = require('child_process').exec, child;
 var path = require('path');
 var fs = require('fs');
-var express = require("express");
+var express = require('express');
 
 var host = '0.0.0.0';
 var port = 5000;
@@ -10,31 +10,30 @@ var port = 5000;
 var app = express();
 
 var ID_FROM_BD = 1;
-var SERVER_IP = "150.165.204.30";
+var SERVER_IP = '150.165.204.30';
 
-app.use(express.static(path.join(__dirname, "/videos")));
+app.use(express.static(path.join(__dirname, '/videos')));
 app.use(express.bodyParser({ keepExtensions: true, uploadDir: path.join(__dirname, '/uploads') }));
 
-app.get("/", function(req, res){
-	res.send(200, "<center><h2>Server " + host + ":" + port + " is running</h2></center>");
+app.get('/', function(req, res){
+	res.send(200, { 'status': 'server ' + host + ':' + port + ' is running!' } );
 });
 
-app.post("/api", function(req, res){
-
+app.post('/api', function(req, res){
 	/* Verifica se o paramêtro [servico] possui algum valor */
-	if (req.query.servico !== "") {
+	if (req.query.servico !== '') {
 		/* Verifica qual é o Tipo de Serviço fornecido */ 
 		switch(req.query.servico) {
 			/* Case para o Tipo de Serviço: Texto */
-			case "texto":
+			case 'texto':
 				/* Verifica se os paramêtros [transparencia, texto] possuem algum valor */
-				if ((req.query.transparencia !== "") && (req.query.texto !== "")) {
+				if ((req.query.transparencia !== '') && (req.query.texto !== '')) {
 					/* Verifica se o paramêtro [transparencia] possui os únicos valores possíveis [opaco, transparente] */
 					if (parameters.getTransparency(req.query.transparencia)) {
 						/* Cria a linha de comando */
-						var command_line =  "echo " + req.query.texto + " >> " + __dirname + "/text_files/" + ID_FROM_BD + " && cd ../vlibras-core" +
-											" && ./gtaaas " + parameters.getServiceType(req.query.servico) + " ../vlibras-api/text_files/" + 
-											ID_FROM_BD + " " + parameters.getTransparency(req.query.transparencia) + " " + ID_FROM_BD + " WEB";
+						var command_line =  'echo ' + req.query.texto + ' >> ' + __dirname + '/text_files/' + ID_FROM_BD + ' && cd ../vlibras-core' +
+											' && ./gtaaas ' + parameters.getServiceType(req.query.servico) + ' ../vlibras-api/text_files/' + 
+											ID_FROM_BD + ' ' + parameters.getTransparency(req.query.transparencia) + ' ' + ID_FROM_BD + ' WEB';
 
 						/* Executa a linha de comando */
 						child = exec(command_line, function(err, stdout, stderr) { 
@@ -43,8 +42,8 @@ app.post("/api", function(req, res){
 						});
 
 						/* Listener que dispara quando a requisição ao core finaliza */
-						child.on("close", function(code, signal){
-							res.send(200, { "response" : "http://" + SERVER_IP + ":" + port + "/" + ID_FROM_BD + ".webm" });
+						child.on('close', function(code, signal){
+							res.send(200, { 'response' : 'http://' + SERVER_IP + ':' + port + '/' + ID_FROM_BD + '.webm' });
 							ID_FROM_BD++;
 						});
 					} else {
@@ -58,7 +57,7 @@ app.post("/api", function(req, res){
 			case 'video':
 
 				/* Verifica se os paramêtros [transparencia, texto] possuem algum valor */
-				if ((req.query.posicao !== "") && (req.query.tamanho !== "") && (req.query.transparencia !== "")) {
+				if ((req.query.posicao !== '') && (req.query.tamanho !== '') && (req.query.transparencia !== '')) {
 					/* Verifica se os paramêtros [linguagem, posicao, tamanho, transparencia] possuem os seus únicos valores possíveis */
 					if ((parameters.checkPosition(req.query.posicao) === true) && (parameters.checkSize(req.query.tamanho) === true) && (parameters.checkTransparency(req.query.transparencia) === true)) {
 						/* Checa se o arquivo de vídeo submetivo possui uma extensão válida */
@@ -74,9 +73,9 @@ app.post("/api", function(req, res){
 								});
 
 								/* Cria a linha de comando */
-								var command_line =  "cd ../vlibras-core && ./gtaaas " + parameters.getServiceType(req.query.servico) + " ../vlibras-api/uploads/" + ID_FROM_BD + "/" +
-													req.files.video.name + " 1 " + parameters.getPosition(req.query.posicao) + " " + parameters.getSize(req.query.tamanho) + " " +
-													parameters.getTransparency(req.query.transparencia) + " " + ID_FROM_BD;
+								var command_line =  'cd ../vlibras-core && ./gtaaas ' + parameters.getServiceType(req.query.servico) + ' ../vlibras-api/uploads/' + ID_FROM_BD + '/' +
+													req.files.video.name + ' 1 ' + parameters.getPosition(req.query.posicao) + ' ' + parameters.getSize(req.query.tamanho) + ' ' +
+													parameters.getTransparency(req.query.transparencia) + ' ' + ID_FROM_BD;
 
 								/* Executa a linha de comando */
 								child = exec(command_line, function(err, stdout, stderr) { 
@@ -85,8 +84,8 @@ app.post("/api", function(req, res){
 								});
 
 								/* Listener que dispara quando a requisição ao core finaliza */
-								child.on("close", function(code, signal){
-									res.send(200, { "response" : "http://" + SERVER_IP + ":" + port + "/" + ID_FROM_BD + ".flv" });
+								child.on('close', function(code, signal){
+									res.send(200, { 'response' : 'http://' + SERVER_IP + ':' + port + '/' + ID_FROM_BD + '.flv' });
 								});
 							});
 						} else {
@@ -108,9 +107,8 @@ app.post("/api", function(req, res){
 	} else {
 		res.send(500, parameters.errorMessage('Especifique o tipo do serviço'));
 	}
-
 });
 
 app.listen(port, host, function(){
 	console.log('Server running on ' + host + ':' + port);
-});
+});
\ No newline at end of file
--
libgit2 0.21.2