completed the expense-express project

App.js

@@ -1,3 +1,88 @@
-const expense = [{id:1,description:"Food",amount:35}]
 
+const express = require("express")
 
+const app = express()
+
+app.listen(9000, () => {
+    console.log("hey Iam listening port 9000")
+})
+
+app.use(express.json())
+
+let expense = [
+    { id: 150, description: "food", amount: 100 },
+    { id: 70, description: "petrol", amount: 200 },
+    { id: 50, description: "shopping", amount: 900 },
+]
+
+//displayin what are inside in our list 
+app.get("/expense", (req, res) => {
+    res.status(200).json({ Founded: expense.length, List: expense })
+
+})
+
+//creating and adding a new item in our list
+app.post("/expense", (req, res) => {
+    let id = expense[expense.length - 1] ? expense[expense.length - 1].id + 1 : 1
+    expense.push({ id: id, description: req.body.description, amount: req.body.amount })
+    res.status(200).json({ message: "successfully created and added new item in your list expenses" })
+
+})
+
+//deleting specific id or item in our list
+app.delete("/expense/:id", (req, res) => {
+
+    const deletedItem = parseInt(req.params.id)
+    let newUpdate = expense.filter((e) => e.id !== deletedItem)
+    expense = newUpdate
+    res.status(200).json({ message: `You've successfully deleted the item has an id of ${req.params.id}` })
+
+})
+
+//editing specific id and an object
+app.put("/expense/:id", (req, res) => {
+    const edited = parseInt(req.params.id)
+
+    //
+    let i = expense.findIndex(o => o.id === edited);
+
+
+    // storing another new object from input body 
+    let newObj = {
+        id: edited,
+        description: req.body.description || expense[i].description,
+        amount: req.body.amount || expense[i].amount,
+    }
+
+
+    //setting the update to my array  
+    if (expense[i]) {
+        expense[i] = newObj
+    }
+
+
+    res.status(200).json({ message: `you've edited successfully the item has an id of ${edited}` })
+
+})
+
+
+
+
+//calculating total of our expense amount list
+app.get("/expense/total", (req, res) => {
+    let total = 0
+    let sumHolder = 0
+    expense.map(filter => {
+        sumHolder = filter.amount
+        total += sumHolder
+    })
+
+    res.status(200).json(total)
+})
+
+//displaying specific item details
+app.get("/expense/:id", (req, res) => {
+
+    let specificView = expense.filter((e) => e.id == req.params.id)
+    res.status(200).json("this is the item you've searched" + specificView)
+})

package.json

@@ -4,12 +4,12 @@
   "description": "",
   "main": "App.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "start": "node App"
   },
   "keywords": [],
   "author": "",
   "license": "ISC",
   "dependencies": {
     "express": "^4.18.2"
   }
-}
+}