Initial commit

.env.example

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+# Backend environment variables
+
+NODE_ENV=development
+PORT=3001
+
+# Database
+DB_HOST=postgres
+DB_PORT=5432
+DB_USER=omnichannel
+DB_PASSWORD=change-me
+DB_NAME=omnichannel

src/Dockerfile

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+FROM node:20-alpine
+WORKDIR /app
+COPY package*.json ./
+RUN npm install
+COPY . .
+EXPOSE 3000
+CMD ["npm", "run", "dev"]

src/infra/config/loadEnv.js

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+const path = require('path');
+const dotenv = require('dotenv');
+
+function loadEnv() {
+    const nodeEnv = process.env.NODE_ENV || 'development';
+    const envPath = path.resolve(process.cwd(), `.env.${nodeEnv}`);
+    dotenv.config({ path: envPath });
+}
+
+module.exports = loadEnv;

src/infra/shared/logger.js

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+const winston = require('winston');
+const path = require('path');
+require('winston-daily-rotate-file');
+const fs = require('fs');
+
+// Verifica se a pasta de logs existe; se nao, cria
+const logsDir = path.join(__dirname, '../../../logs');
+if (!fs.existsSync(logsDir)) {
+    fs.mkdirSync(logsDir, { recursive: true });
+}
+
+// Configuracao do logger com winston
+const logger = winston.createLogger({
+    level: 'info',
+    format: winston.format.combine(
+        winston.format.timestamp({
+            format: 'YYYY-MM-DD HH:mm:ss'
+        }),
+        winston.format.errors({ stack: true }),
+        winston.format.json()
+    ),
+    transports: [
+        // Log geral da aplicacao
+        new winston.transports.DailyRotateFile({
+            filename: path.join(logsDir, 'app-%DATE%.log'),
+            datePattern: 'YYYY-MM-DD',
+            zippedArchive: true,
+            maxSize: '5m',
+            maxFiles: '10d',
+            options: {
+                flags: 'w'
+            }
+        }),
+        // Log de erros
+        new winston.transports.DailyRotateFile({
+            filename: path.join(logsDir, 'error-%DATE%.log'),
+            level: 'error',
+            datePattern: 'YYYY-MM-DD',
+            zippedArchive: true,
+            maxSize: '5m',
+            maxFiles: '10d',
+            options: {
+                flags: 'w'
+            }
+        })
+    ]
+});
+
+// Log no console para todos os ambientes (pm2 logs)
+logger.add(new winston.transports.Console({
+    format: winston.format.combine(
+        winston.format.colorize(),
+        winston.format.printf((info) => {
+            const { timestamp, level, message, stack, ...meta } = info;
+            let logMessage = `${timestamp} [${level}]: ${stack || message}`;
+            if (Object.keys(meta).length) {
+                logMessage += ` ${JSON.stringify(meta, null, 2)}`;
+            }
+            return logMessage;
+        })
+    )
+}));
+
+// Funcoes utilitarias
+const logError = (error, context = '') => {
+    if (error instanceof Error) {
+        logger.error(`${context} - ${error.message}`, { stack: error.stack });
+    } else {
+        logger.error(`${context} - ${error}`);
+    }
+};
+
+const logInfo = (message, meta = {}) => {
+    logger.info(message, meta);
+};
+
+const logWarning = (message, meta = {}) => {
+    logger.warn(message, meta);
+};
+
+module.exports = {
+    logger,
+    logError,
+    logInfo,
+    logWarning
+};

src/package.json

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+{
+  "name": "omnichannel-backend",
+  "version": "1.0.0",
+  "private": true,
+  "scripts": {
+    "start": "cross-env NODE_ENV=production node src/infra/http/server.js",
+    "dev": "cross-env NODE_ENV=development nodemon src/infra/http/server.js"
+  },
+  "dependencies": {
+    "dotenv": "^16.4.5",
+    "winston": "^3.13.0",
+    "winston-daily-rotate-file": "^5.0.0"
+  },
+  "devDependencies": {
+    "cross-env": "^7.0.3",
+    "nodemon": "^3.1.0"
+  }
+}