Implement "Get Single Question" API Endpoint

.env

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+MONGO_URI=mongodb+srv://your-mongodb-uri
+PORT=5000
+JWT_SECRET=your-secret-key

.gitignore

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-node_modules

app.js

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+const express = require("express");
+const connectDB = require("./db");
+const questionRoutes =require("./routes/questionRoutes");
+const app = express();
+
+connectDB();
+
+//middleware
+app.use(express.json());
+
+//Routes
+app.use("/api/questions",questionRoutes);
+
+const PORT = process.env.PORT || 5000;
+app.listen(PORT, ()=> console.log(`Server running on port ${PORT}`));

controller/questionController.js

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+const db = require("../db"); // Import database connection
+const Question = require("../models/Question"); // Import Question model
+
+// Controller to get a single question by ID
+const getSingleQuestion = async (req, res) => {
+  try {
+    const { question_id } = req.params;
+
+    // Fetch question from database
+    const question = await Question.findById(question_id);
+
+    if (!question) {
+      return res.status(404).json({ message: "Question not found" });
+    }
+
+    res.status(200).json({ question });
+  } catch (error) {
+    console.error("Error fetching question:", error);
+    res.status(500).json({ message: "Server error" });
+  }
+};
+
+module.exports = { getSingleQuestion };

db/dbConfig.js

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+const mysql2 = require("mysql2")
+const dotenv = require("dotenv")
+dotenv.config()
+
+const dbcon = mysql2.createPool({
+  user: process.env.USER,
+  database: process.env.DATABASE,
+  host: process.env.HOST,
+  password: process.env.PASSWORD,
+  connectionLimit: 10,
+})
+

db/index.js

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+const mongoose = require("mongoose");
+require("dotenv").config();
+
+const connectDB = async () => {
+  try {
+    await mongoose.connect(process.env.MONGO_URI, {
+      useNewUrlParser: true,
+      useUnifiedTopology: true,
+    });
+    console.log("✅ MongoDB Connected Successfully!");
+  } catch (error) {
+    console.error("❌ Database Connection Failed:", error);
+    process.exit(1); // Exit with failure
+  }
+};
+
+module.exports = connectDB;

middleware/AuthMiddleware.js

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+const { StatusCodes } = require("http-status-codes")
+
+const dotenv = require("dotenv")
+dotenv.config()
+
+const jwt = require("jsonwebtoken")
+async function autMiddleware(req, res, next) {
+  const authHeader = req.headers.authorization
+  if (!authHeader || !authHeader.startsWith("Bearer")) {
+    return res
+      .status(StatusCodes.UNAUTHORIZED)
+      .json({ msg: "Authentication Invalid" })
+  }
+  //this is to get specific token from header  eg. {"Bearer mytoken"}
+  //after split by ' '  the first is Bearer and the second in index 1 is token
+  const token = authHeader.split(" ")[1]
+
+  try {
+    const { username, userid } = jwt.verify(token, process.env.JWT_SECRET)
+    // return res.status(StatusCodes.OK).json({ data })
+    req.user = { username, userid }
+    next()
+  } catch (error) {
+    return res
+      .status(StatusCodes.INTERNAL_SERVER_ERROR)
+      .json({ msg: "Authentication Invalid" })
+  }
+}