Handling Get Request in REST API using nodejs and mongoDB

Read data using Get request

app.get("/students", async (req, res)=>{
    try{
        const studentdata = await Student.find();
        res.send(studentdata);
    }catch(e){
        console.log(e);
    }
})

Get the individual student data using id 

app.get("/students/:id", async (req, res)=>{
    try{
        const _id = req.params.id;
        // console.log(req.params.id);
        // res.send(req.params.id);
       const studentData = await Student.findById(_id);
       if(!studentData){
           return res.status(404).send();
       }else{
            res.send(studentData);
       }
       
    }catch(e){
        console.log(e);
    }
})

full source code app.js

const express = require("express");
require("./db/conn");
const Student = require("./models/students");
const app = express();
const port = process.env.PORT || 8000;
// use express.json 
app.use(express.json());
// define root  
app.get("/",(req, res)=>{
    res.send("home page")
})
// create 
// app.post("/students",(req,res)=>{
//     console.log(req.body);    
//     const user = new Student(req.body);
//     user.save().then(()=>{
//         res.status(201).send(user)
//     }).catch((e)=>{
//         res.status(400).send(e);
//     }),
// async function 
app.post("/students", async(req, res)=>{
    try{const user = new Student(req.body);
        const result = await user.save();
        res.status(201).send(result)
    }catch{
        res.status(400).send(e);
    }
})

// read the data of registrered student 
app.get("/students", async (req, res)=>{
    try{
        const studentdata = await Student.find();
        res.send(studentdata);
    }catch(e){
        console.log(e);
    }
})
// get the individual student data using id 
// 
app.get("/students/:id", async (req, res)=>{
    try{
        const _id = req.params.id;
        // console.log(req.params.id);
        // res.send(req.params.id);
       const studentData = await Student.findById(_id);
       if(!studentData){
           return res.status(404).send();
       }else{
            res.send(studentData);
       }
       
    }catch(e){
        console.log(e);
    }
})

app.listen(port, ()=>{
    console.log(`connecting port ${port}`)
});