Error handler/backend

backend/config/logger.js

@@ -0,0 +1,21 @@
+// config/logger.js
+const winston = require("winston");
+
+const logger = winston.createLogger({
+  level: "info", // Set the default logging level
+  format: winston.format.combine(
+    winston.format.timestamp(), // Include a timestamp
+    winston.format.colorize(), // Colorize the output
+    winston.format.printf(({ timestamp, level, message, stack, errors }) => {
+      return `${timestamp} [${level}] ${message}${
+        stack ? `\nStack: ${stack}` : ""
+      }${errors ? `\nErrors: ${JSON.stringify(errors)}` : ""}`; // Custom format
+    })
+  ),
+  transports: [
+    new winston.transports.Console(), // Log to console
+    new winston.transports.File({ filename: "error.log", level: "error" }), // Log errors to a file
+  ],
+});
+
+module.exports = logger;

backend/controller/feedback.controller.js

@@ -1,5 +1,6 @@
 const { z } = require("zod");
 const { Feedback } = require("../models/feedback.model");
+const logger = require("../config/logger"); // Import your logger
 
 // Define the Zod schema for feedback validation
 const feedbackSchema = z.object({
@@ -13,7 +14,10 @@ async function createFeedback(req, res) {
     const validationResult = feedbackSchema.safeParse(req.body);
 
     if (!validationResult.success) {
-      console.error("Validation error:", validationResult.error.errors);
+      logger.error("Validation error:", {
+        errors: validationResult.error.errors, // Log the detailed validation errors
+        body: req.body, // Optionally log the request body for context
+      }); // Use logger for validation errors
       return res.status(400).json({
         success: false,
         message: "Validation failed",
@@ -29,7 +33,7 @@ async function createFeedback(req, res) {
       data: feedback,
     });
   } catch (error) {
-    console.error("Error creating feedback:", error);
+    logger.error("Error creating feedback:", error); // Log the error using Winston
     res.status(500).json({
       success: false,
       message: "An error occurred while creating the feedback",
@@ -41,7 +45,7 @@ module.exports = {
   createFeedback,
 };
 
-//dummy api call for feedback
+// Dummy API call for feedback
 // {
 //     "name": "John Doe",
 //     "email": "[email protected]",

backend/controller/reservation.controller.js

@@ -1,5 +1,6 @@
 const { z } = require("zod");
 const Reservation = require("../models/reservation.model");
+const logger = require("../config/logger"); // Import your logger
 
 // Define the Zod schema for reservation validation
 const reservationSchema = z.object({
@@ -13,7 +14,10 @@ async function createReservation(req, res) {
     const validationResult = reservationSchema.safeParse(req.body);
 
     if (!validationResult.success) {
-      console.error("Validation error:", validationResult.error.errors);
+      logger.error("Validation error:", {
+        errors: validationResult.error.errors,
+        body: req.body,
+      });
       return res.status(400).json({
         success: false,
         message: "Validation failed",
@@ -29,7 +33,12 @@ async function createReservation(req, res) {
       data: reservation,
     });
   } catch (error) {
-    console.error("Error creating reservation:", error);
+    logger.error("Error creating reservation:", {
+      message: error.message,
+      stack: error.stack,
+      body: req.body,
+    });
+
     res.status(500).json({
       success: false,
       message: "An error occurred while creating the reservation",

backend/index.js

@@ -1,10 +1,15 @@
 const express = require("express");
 const cors = require("cors");
-const app = express();
-const port = 3000;
-require("dotenv").config();
 const mongoose = require("mongoose");
+const dotenv = require("dotenv");
+const logger = require("./config/logger"); // Import your logger
+const errorMiddleware = require("./middlewares/errrorMiddleware");
+
+dotenv.config();
+const app = express();
+const port = process.env.PORT || 3000;
 
+// CORS configuration
 app.use(
   cors({
     origin: ["http://localhost:5173", "https://play-cafe.vercel.app"],
@@ -13,22 +18,31 @@ app.use(
 
 app.use(express.json());
 
+// MongoDB connection
 mongoose
   .connect(process.env.MONGO_URI, {
     useNewUrlParser: true,
     useUnifiedTopology: true,
   })
   .then(() => {
-    console.log("Connected to MongoDB");
+    logger.info("Connected to MongoDB"); // Log successful connection
   })
   .catch((error) => {
-    console.error("Database connection failed:", error.message);
-    console.error(error.stack);
+    logger.error("Database connection failed:", error.message); // Use logger for connection error
     process.exit(1);
   });
 
+// API routes
 app.use("/api", require("./routes/index"));
 
-app.listen(port, () => console.log(`Server is running on port ${port}!`));
+// Health Check Endpoint
+app.get("/health", (req, res) => {
+  res.status(200).json({ status: "OK" });
+});
+
+app.use(errorMiddleware);
+
+// Start server
+app.listen(port, () => logger.info(`Server is running on port ${port}!`)); // Log server start
 
 module.exports = app;

backend/middlewares/errrorMiddleware.js

@@ -0,0 +1,20 @@
+// middlewares/errorMiddleware.js
+const logger = require("../config/logger"); // Assuming you have a logger set up
+
+function errorMiddleware(err, req, res, next) {
+  // Log the error details using logger
+  logger.error(err.message, {
+    stack: req.body, // Include stack trace
+    url: req.originalUrl, // Request URL
+    method: req.method, // HTTP method
+    body: req.body, // Request body
+  });
+
+  // Send the response
+  res.status(err.status || 500).json({
+    success: false,
+    message: err.message || "An unexpected error occurred.",
+  });
+}
+
+module.exports = errorMiddleware;

backend/package.json

@@ -17,6 +17,7 @@
     "express": "^4.21.0",
     "mongoose": "^8.7.0",
     "validator": "^13.12.0",
+    "winston": "^3.14.2",
     "zod": "^3.23.8"
   },
   "devDependencies": {

backend/routes/feedbackRouter.js

@@ -1,17 +1,19 @@
 const express = require("express");
-const { Feedback } = require("../models/feedback.model");
-const createFeedback = require("../controller/feedback.controller");
-
+const { createFeedback } = require("../controller/feedback.controller");
 const router = express.Router();
+const apiInfo = require("../config/api.info");
+const logger = require("../config/logger"); // Import your logger
 
 router.post("/create", createFeedback);
 
-const apiInfo = require("../config/api.info");
-
 router.get("/", (req, res) => {
   try {
     res.json(apiInfo);
   } catch (error) {
+    logger.error("Error fetching API info:", {
+      message: error.message,
+      stack: error.stack,
+    });
     res.status(500).json({ error: "Internal server error" });
   }
 });

backend/routes/index.js

@@ -1,27 +1,31 @@
 const express = require("express");
 const Reservation = require("../models/reservation.model");
+const logger = require("../config/logger"); // Import your Winston logger
 
 const router = express.Router();
 
 let feedbackRouter;
 try {
   feedbackRouter = require("./feedbackRouter");
 } catch (error) {
-  console.error("Error loading feedbackRouter:", error);
-  feedbackRouter = (req, res, next) => {
+  logger.error("Error loading feedbackRouter:", error); // Log the error with Winston
+  feedbackRouter = (req, res) => {
     res
       .status(500)
       .json({ error: "Feedback functionality is currently unavailable" });
   };
 }
+
 router.use("/feedback", feedbackRouter);
 router.use("/reservation", require("./reservationRouter"));
+
 router.get("/", (req, res) => {
   res.json({
     message: "Welcome to the restaurant API!",
     version: "1.0.0",
     endpoints: {
       Reservation: "/reservation",
+      Feedback: "/feedback", // Added feedback endpoint documentation
     },
     documentation: "https://api-docs-url.com",
   });