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app.js
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app.js
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const express = require("express");
const dotenv = require("dotenv");
const morgan = require("morgan");
const colors = require("colors");
const moment = require("moment");
require("moment-duration-format");
const mongoSanitize = require("express-mongo-sanitize");
const helmet = require("helmet");
const xss = require("xss-clean");
const rateLimit = require("express-rate-limit");
const hpp = require("hpp");
const cors = require("cors");
const errorHandler = require("./middleware/error");
const connectDB = require("./config/db");
// Load env vars
dotenv.config({ path: "./config/config.env" });
// Connect to database
connectDB().catch((err) => {
console.log(err);
process.exit(1); // Close & exit if connection to the database fails.
});
// Route files
const cabinets = require("./routes/cabinets");
const centers = require("./routes/centers");
const app = express();
// Body parser
app.use(express.json());
// Dev logging middleware
if (process.env.ENVIRONMENT === "development") {
app.use(morgan("dev"));
} else {
app.use(morgan("short"));
}
// Sanitize data
app.use(mongoSanitize());
// Set security headers
app.use(helmet());
// Prevent XSS attacks
app.use(xss());
// Rate limiting
const limiter = rateLimit({
windowMs: 60 * 1000, // 1 minute
max: 480,
headers: true,
message: {
success: false,
error: "Too many requests, please try again later.",
},
});
app.use(limiter);
// Prevent http param pollution
app.use(hpp());
// Enable CORS
app.use(cors());
// Mount routers
app.use("/api/v1/cabinets", cabinets);
app.use("/api/v1/centers", centers);
app.use(errorHandler);
app.get("/*", (req, res) => {
const uptime = moment
.duration(process.uptime(), "seconds")
.format("w [weeks] d [days], h [hrs], m [min], s [sec]");
const started = moment()
// .locale("el") // to display date in greek
.subtract(process.uptime(), "seconds")
.format("llll");
return res.status(200).send({
succes: true,
data: {
uptime,
started,
},
});
});
const PORT = process.env.PORT || 5000;
const server = app.listen(
PORT,
console.log(
`Server running in ${process.env.ENVIRONMENT} mode on port ${PORT}`.yellow
.bold
)
);
// Handle unhandled promise rejections
process.on("unhandledRejection", (err, promise) => {
console.log(`Error: ${err.message}`.red);
// Close server & exit process
server.close(() => process.exit(1));
});