Let’s implement our first RESTful API listUsers using the following code in a server.js file \u2212<\/p>\n
server.js<\/p>\n
var express = require(‘express’);<\/p>\n
var app = express();<\/p>\n
var fs = require(“fs”);<\/p>\n
app.get(‘\/listUsers’, function (req, res) {<\/p>\n
fs.readFile( __dirname + “\/” + “users.json”, ‘utf8’, function (err, data) {<\/p>\n
console.log( data );<\/p>\n
res.end( data );<\/p>\n
});<\/p>\n
})<\/p>\n
var server = app.listen(8081, function () {<\/p>\n
var host = server.address().address<\/p>\n
var port = server.address().port<\/p>\n
console.log(“Example app listening at http:\/\/%s:%s”, host, port)<\/p>\n
})<\/p>\n
Now try to access defined API using URL: http:\/\/127.0.0.1:8081\/listUsers and HTTP Method : GET on local machine using any REST client. This should produce following result \u2212<\/p>\n
You can change given IP address when you will put the solution in production environment.<\/p>\n
{<\/p>\n
“user1” : {<\/p>\n
“name” : “mahesh”,<\/p>\n
“password” : “password1”,<\/p>\n
“profession” : “teacher”,<\/p>\n
“id”: 1<\/p>\n
},<\/p>\n
“user2” : {<\/p>\n
“name” : “suresh”,<\/p>\n
“password” : “password2”,<\/p>\n
“profession” : “librarian”,<\/p>\n
“id”: 2<\/p>\n
},<\/p>\n
“user3” : {<\/p>\n
“name” : “ramesh”,<\/p>\n
“password” : “password3”,<\/p>\n
“profession” : “clerk”,<\/p>\n
“id”: 3<\/p>\n
}<\/p>\n
}<\/p>\n","protected":false},"excerpt":{"rendered":"
Let’s implement our first RESTful API listUsers using the following code in a server.js file \u2212 server.js var express = require(‘express’); var app = express(); var fs = require(“fs”); app.get(‘\/listUsers’, function (req, res) { fs.readFile( __dirname + “\/” + “users.json”, ‘utf8’, function (err, data) { console.log( data ); res.end( data ); }); }) var server…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[8453],"tags":[8502],"class_list":["post-72756","page","type-page","status-publish","hentry","category-node-js","tag-listing-data"],"acf":[],"yoast_head":"\n