image upload in backend

backend/.gitignore

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+node_modules/
+.env
+uploads/

backend/config/db.js

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+import mongoose from "mongoose";
+import dns from "dns";
+dns.setServers(["8.8.8.8", "1.1.1.1"]);
+const connectDB = async () => {
+  try {
+    await mongoose.connect(process.env.MONGO_URI);
+
+    console.log("MongoDB Connected");
+  } catch (error) {
+    console.error("MongoDB Error:", error.message);
+  }
+};
+
+export default connectDB;

backend/controllers/foodController.js

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+import { scanFoodService } from "../services/foodService.js";
+
+export const scanFood = async (req, res) => {
+  try {
+    const result = await scanFoodService();
+
+    res.status(200).json(result);
+  } catch (error) {
+    res.status(500).json({
+      success: false,
+      message: error.message,
+    });
+  }
+};

backend/middleware/asyncHandler.js

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+const asyncHandler = (fn)=>{
+    return(req,res,next)=>{
+        Promise.resolve(fn(req,res,next))
+    }
+}
+export default asyncHandler;

backend/middleware/errorHandler.js

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+const errorHandler =(req,res,next)=>{
+    const statuscode=err.statuscode || 500;
+    res.status(statuscode).json({
+        success:false,
+        message:err.message || "Server Error"
+    })
+}
+export default errorHandler;

backend/models/FoodScan.js

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+import mongoose from "mongoose"
+
+const foodScanSchema = new mongoose.Schema(
+    {
+        foodName:{
+            type:String,
+            required:true
+        },
+        calories:{
+            type:Number,
+            required:true
+        },
+        protein:{
+        type:Number,
+        default:0,
+    },
+    carbohydrates:{
+        type:Number,
+        default:0,
+    },
+    fat:{
+        type:Number,
+        default:0,
+    },
+    },
+    {
+        timestamps:true
+    }
+
+);
+const FoodScan = mongoose.model("FoodScan",foodScanSchema);
+export default FoodScan;
+
+
+

backend/models/User.js

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+import mongoose from "mongoose";
+
+const userSchema = new mongoose.Schema(
+  {
+    name: {
+      type: String,
+      required: true,
+      trim: true,
+    },
+
+    email: {
+      type: String,
+      required: true,
+      unique: true,
+      lowercase: true,
+      trim: true,
+    },
+
+    password: {
+      type: String,
+      required: true,
+    },
+
+    profileImage: {
+      type: String,
+      default: "",
+    },
+
+    dailyCalorieGoal: {
+      type: Number,
+      default: 2000,
+    },
+  },
+  {
+    timestamps: true,
+  }
+);
+
+const User = mongoose.model("User", userSchema);
+
+export default User;