firstly create the users collection and save all documents.
let users=[
{_id:1,name:"Rom",age:30},
{_id:2,name:"Tony",age:31},
{_id:3,name:"Peter",age:32},
{_id:4,name:"Andrew",age:33},
{_id:5,name:"Symonds",age:34},
{_id:6,name:"John",age:35},
{_id:7,name:"Ponting",age:36},
]
var MongoClient = require('mongodb').MongoClient;
let url="mongodb://localhost:27017/databaseName";
MongoClient.connect(url, function (err, db) {
db.collection("users").insertMany(users, function(err, res) {
if (err) throw err;
console.log("all documents are inserted");
db.close();
});
});
Create the get method API to get all documents from the MongoDB
var express = require('express');
var app = express();
var MongoClient = require('mongodb').MongoClient;
app.get('/userList', function (req, res) {
MongoClient.connect(url, function (err, db) {
if(!err){
db.collection("users").find().toArray(function(err, result) {
if (err){
res.json({data:result,messages:"some thing went wrong",status:501})
}
res.json({data:result,messages:"users list show successfully",status:200})
db.close();
});
}else{
res.json({data:err,messages:"some thing went wrong",status:501})
}
});
});
if you need the details of the specific user
var express = require('express');
var app = express();
var MongoClient = require('mongodb').MongoClient;
app.get('/user/:id', function (req, res) {
MongoClient.connect(url, function (err, db) {
if(!err){
let req_params=req.params;
let user_id=(typeof req_params.id !== 'undefined') ? (req_params.id):0;
db.collection("users").find({_id:user_id}).toArray(function(err, result) {
if (err){
res.json({data:result,messages:"some thing went wrong",status:501})
}
res.json({data:result,messages:"user details show successfully",status:200})
db.close();
});
}else{
res.json({data:err,messages:"some thing went wrong",status:501})
}
});
});
Note:- In the above example req.params is used to get the route parameters value.