replaced deprecated methods

src/routes/api/todos.js

@@ -2,22 +2,23 @@ const express = require('express');
 const router = express.Router();
 
 const inMemoryTodoDB = [
-  {id:0,name:'todo 0',description:'description here', done:false},
-  {id:1,name:'todo 1',description:'description here', done:true}
+  {id:0,name:'Part I',description:'Write Part I', done:true},
+  {id:1,name:'Part II',description:'Write Part II', done:false}
 ];
 
 router.get('/',(req,res)=>{
-  res.status(200).json(inMemoryTodoDB);
+  res.status(200)
+    .json(inMemoryTodoDB);
 });
 
 router.get('/:id',(req,res)=>{
 
   const { id } = req.params;
 
   const todoItem = inMemoryTodoDB.filter((todo)=> todo.id==id)[0];
-
+  
   if(!todoItem){
-    res.status(404).json({error:'Todo  task not found.'});
+    res.sendStatus(404);
   }
   else{
     res.status(200).json(todoItem);
@@ -31,36 +32,36 @@ router.post('/',(req,res)=>{
   // getting last used id from our Mock DB 
   const lastId = inMemoryTodoDB[inMemoryTodoDB.length-1].id;
   const id = lastId + 1;
-      
+
   const newTodo = { id,name,description,done };
 
   inMemoryTodoDB.push(newTodo);
 
   res.status(201)
     .location(`/api/todos/${id}`)
     .json(newTodo);
-
+  
 });
 
 router.put('/:id/done',(req,res)=>{
 
   let  { done }  = req.body;
   const {id} = req.params;
-
+  
   // check if its a boolean 
   if(typeof(done) != 'boolean' )
   {
     res.sendStatus(400);
     return;
   }
-      
+
   const exists = inMemoryTodoDB.filter((todo)=> todo.id==id).length > 0;    
-      
+
   if(!exists){
     res.sendStatus(404);
     return;
   }
-
+  
   inMemoryTodoDB.map((todo)=>{
     if(todo.id == id) {
       todo.done = done;
@@ -78,12 +79,12 @@ router.delete('/:id',(req,res)=>{
 
   if(!todoItem)
   {
-    res.send(404);
+    res.sendStatus(404);
     return;
   }
   inMemoryTodoDB.splice(inMemoryTodoDB.indexOf((todo)=>todo.id==id),1);
 
-  res.send(200);
+  res.sendStatus(200);
 
 });