Completed the expense-express task

App.js

@@ -1,3 +1,103 @@
-const expense = [{id:1,description:"Food",amount:35}]
+const express= require("express")
+const app = express()
+const port = 8000;
+
+// middleware
+app.use(express.json())
+
+const expense = [
+    {id:1,description:"Food",amount:35},
+    {id:2,description:"internet bill",amount:25}, 
+    {id:3,description:"water",amount:10}
+]
+
+
+// just get one expense with that specific id passed
+app.get("/expense/:id",(req,res)=>{
+    const index = expense.findIndex(expense=> expense.id == req.params.id)
+
+    const getSpecificExp= {
+          id:req.params.id ,
+          description: expense[index].description ,
+          amount:expense[index].amount 
+    }
+
+    console.log(getSpecificExp)
+    res.status(200).json({Message: getSpecificExp})
+
+})
+
+
+
+
+// get the list of expense
+app.get("/expense",(req,res)=>{
+    res.status(200).json({found:expense.length, list:expense})
+})
+
+
+
+// added new item in expense list
+app.post("/expense",(req,res)=>{
+    // if operation that finds the last id of expense list , If list is empty the default id would be 1
+    let id;
+    if(id >= 0 ){
+        id= expense[expense.length-1].id+1  
+     }else{
+      id =1;
+     }
+
+    expense.push({id:id ,description:req.body.description ,amount:req.body.amount})
+    res.status(201).json({message:expense})
+})
+
+
+
+
+//deleted  the specific expense where  the id  is passed 
+app.delete("/expense/:id",(req,res)=>{
+
+    const remove = req.params.id -1
+    expense.splice(remove,1)
+    res.status(200).json({deletedMessage:expense})
+})
+
+
+
+// return the total amount of all expenses
+app.get("/expense/:total",(req,res)=>{
+    let total = 0;
+    let expenseSum= 0;
+    expense.forEach(element => {
+        expenseSum += element.amount;
+      });
+    total = total +  expenseSum;
+    res.status(200).json({totalExpenses:total})
+
+})
+
+
+
+// we edit the specific expense and the body should include description or amount or both
+app.put("/expense/:id",(req,res)=>{
+    const index = expense.findIndex(expense=> expense.id == req.params.id)
+
+    expense.splice(index,1,{
+        id: parseInt(req.params.id ),
+        description:req.body.description,
+        amount:req.body.amount
+  })
+
+    res.status(200).json({editedMessage:expense})
+
+})
+
+
+
+//listening the port 
+app.listen(port,()=>{
+    console.log("App running on the port 8000 ")
+})
+
 
 

package.json

@@ -1,15 +1,25 @@
 {
   "name": "expense-express",
   "version": "1.0.0",
-  "description": "",
+  "description": "Your are required to create some endpoints and each endpoint must do a specific task. This project you will be adding, removing, editing and getting expenses data. Below are the endpoints and their methods that are required:",
   "main": "App.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "node App.js"
   },
   "keywords": [],
-  "author": "",
+  "author": "zayid mohamed",
   "license": "ISC",
   "dependencies": {
     "express": "^4.18.2"
-  }
+  },
+  "devDependencies": {},
+  "repository": {
+    "type": "git",
+    "url": "git+https://[email protected]/zayidmohamedy/expense-express.git"
+  },
+  "bugs": {
+    "url": "https://github.com/zayidmohamedy/expense-express/issues"
+  },
+  "homepage": "https://github.com/zayidmohamedy/expense-express#readme"
 }