I have a bootstrap form for email services for angular 6 app and nodejs, I am using nodemailer for sendemail in my app, unfortunatelly does not work. I ma getting the following error:

Failed to load resource: net::ERR_CONNECTION_REFUSED : :3000/contact/send:1

here is the form

 <form [formGroup]="angForm" novalidate> <div> <h3> Write to us </h3> </div> <div> <div> <div> <input type="text" formControlName="name" placeholder="name" #name> </div> <div *ngIf="angForm.controls['name'].invalid && (angForm.controls['name'].dirty || angForm.controls['name'].touched)"> <div *ngIf="angForm.controls['name'].errors.required"> Name is required. </div> </div> <div> <input type="email" formControlName="email" placeholder="email" #email> </div> <div *ngIf="angForm.controls['email'].invalid && (angForm.controls['message'].dirty || angForm.controls['message'].touched)"> <div *ngIf="angForm.controls['message'].errors.required"> message is required. </div> </div> </div> <div> <div> <textarea placeholder="Message" formControlName="message" #message rows="3"></textarea> </div> <div *ngIf="angForm.controls['message'].invalid && (angForm.controls['message'].dirty || angForm.controls['message'].touched)"> <div *ngIf="angForm.controls['message'].errors.required"> message is required. </div> </div> </div> </div> <flash-messages></flash-messages> <div> <div> <button (click)="sendMail(name.value, email.value, message.value)" [disabled]="angForm.pristine || angForm.invalid" name="submit" type="submit" value="SEND MESSAGE">SEND MESSAGE </button> </div> </div> </form> 

Here is contact,js (node mailer settings and routes)

const express = require('express'); const router = express.Router(); const request = require('request'); const nodemailer = require('nodemailer'); router.get('/send', (req, res) => { const outputData = ` <p>You have a new contact request</p> <h3>Contact Details</h3> <ul> <li>Name: ${req.body.name}</li> <li>Email: ${req.body.email}</li> </ul> <h3>Message</h3> <p>${req.body.message}</p> `; let transporter = nodemailer.createTransport({ service: 'gmail', secure: false, port: 25, auth: { user: 'MY EMAIL', pass: 'THE PASSWORD' }, tls: { rejectUnauthorized: false } }); let HelperOptions = { from: '"MYNAME" <MYEMAIL, to: 'MYEMAIL', subject: 'Majeni Contact Request', text: 'Hello', html: outputData }; transporter.sendMail(HelperOptions, (error, info) => { if (error) { return console.log(error); } console.log("The message was sent!"); console.log(info); }); }); module.exports = router; 

here is the server js.

// server.js const express = require('express'); const bodyParser = require('body-parser'); const cors = require('cors'); const path = require('path'); const app = express(); // Port Number const port = process.env.PORT || 3000 // Run the app by serving the static files // in the dist directory app.use(express.static(path.join(__dirname, '/majeni/dist/majeni'))); // Body Parser Middleware app.use(bodyParser.json()); //routes const contact = require('./app/routes/contact'); app.use('/contact', contact); // CORS Middleware app.use(cors()); // If an incoming request uses // a protocol other than HTTPS, // redirect that request to the // same url but with HTTPS const forceSSL = function () { return function (req, res, next) { if (req.headers['x-forwarded-proto'] !== 'https') { return res.redirect( [' req.get('Host'), req.url].join('') ); } next(); } } // Instruct the app // to use the forceSSL // middleware app.use(forceSSL()); // For all GET requests, send back index.html // so that PathLocationStrategy can be used app.get('/*', function (req, res) { res.sendFile(path.join(__dirname + '/majeni/dist/majeni/index.html')); }); // Start Server app.listen(port, () => { console.log('Server started on port '+port); }); 

UPDATE

Here is service

import { Injectable } from '@angular/core'; import { Headers, Http, Response } from '@angular/http'; import { Jsonp } from '@angular/http'; @Injectable({ providedIn: 'root' }) export class ContactService { constructor(private http: Http) { } sendEmail(name, email, message) { const uri = ' const obj = { name: name, email: email, message: message, }; return this.http.post(uri, obj); } } 

What is missing in my code?

2 Answers

Failed to load resource: net::ERR_CONNECTION_REFUSED : :3000/contact/send:1

Your error means your client application is Unable to connect to your nodejs server.

Fix

Your code :

const uri = ' 

Will work if nodejs server is running on port 3000 on localhost.

For anyone else getting this error. Check that your NodeJS is not crashing. If a previous request causes your NodeJS server to crash or restart this is the same error on subsequent requests.