How to send a POST request from node.js Express?

var request = require('request'); function updateClient(postData){            var clientServerOptions = {                uri: 'http://'+clientHost+''+clientContext,                body: JSON.stringify(postData),                method: 'POST',                headers: {                    'Content-Type': 'application/json'                }            }            request(clientServerOptions, function (error, response) {                console.log(error,response.body);                return;            });        }

For this to work, your server must be something like:

var express = require('express');var bodyParser = require('body-parser');var app = express();app.use(bodyParser.urlencoded({ extended: false }));app.use(bodyParser.json())var port = 9000;app.post('/sample/put/data', function(req, res) {    console.log('receiving data ...');    console.log('body is ',req.body);    res.send(req.body);});// start the serverapp.listen(port);console.log('Server started! At http://localhost:' + port);

As described here for a post request :

var http = require('http');var options = {  host: 'www.host.com',  path: '/',  port: '80',  method: 'POST'};callback = function(response) {  var str = ''  response.on('data', function (chunk) {    str += chunk;  });  response.on('end', function () {    console.log(str);  });}var req = http.request(options, callback);//This is the data we are posting, it needs to be a string or a bufferreq.write("data");req.end();

you can try like this:

var request = require('request');request.post({ headers: {'content-type' : 'application/json'}               , url: <your URL>, body: <req_body in json> }               , function(error, response, body){   console.log(body); });