How to POST from angular 2 to express server - node.js

Question

Newbie here trying to get a grasp on sending contact form data from Angular 2 to a Node/Express server... Right now I'm hosting Angular 2 with the built-in server at localhost:4200, and the express server at localhost:3000. I tried the following code but am getting the following error:
Error: ENOENT: no such file or directory, stat 'C:\Users\corey\Desktop\Project\server\api\contact-form-submit'
Here is my contact-form.component.ts file:
import { Component, OnInit } from '#angular/core';
import { FormBuilder, FormGroup, Validators } from '#angular/forms';
import { HttpClient } from '#angular/common/http';
#Component({
selector: 'app-contact-form',
templateUrl: './contact-form.component.html',
styleUrls: ['./contact-form.component.css']
})
export class ContactFormComponent {
constructor(private http: HttpClient) {}
onSubmit(form) {
this.http.post('http://localhost:3000/server/api/contact-form-submit', JSON.stringify(form.value)).subscribe();
console.log(form.value);
}
}
Here is my server.js file:
var express = require('express');
var nodemailer = require('nodemailer');
var mg = require('nodemailer-mailgun-transport');
var bodyParser = require('body-parser');
var app = express();
var path = require('path');
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}));
//trying to get contact form submission from angular 2 form here
app.get('/', function (req, res) {
res.sendfile('./api/contact-form-submit');
console.log('test');
});
//api key and domain for mailgun
var auth = {
auth: {
api_key: 'api-key-here',
domain: 'mailgun#domain here'
}
}
//trying to send email with nodemailer here
app.post('./api/send', function(req, res) {
var transporter = nodemailer.createTransport(mg(auth));
var mailOptions = {
from: 'postmaster#email.com',
to: 'email#goeshere.com',
subject: 'Website submission',
text: 'Name: ' + req.body.name + 'Email: ' + req.body.email + 'Message: ' + req.body.message,
html: '<p>Submission: </p><br><ul><li>Name: ' + req.body.name + '</li><li>Email: ' + req.body.email + '</li><li>Message: ' + req.body.message + '</li></ul>'
};
transporter.sendMail(mailOptions, function(error, info) {
if (error) {
console.log(error);
res.redirect('/');
} else {
console.log('Message sent.');
res.redirect('/');
}
})
});
app.listen(3000, function() {
console.log('Express started on port 3000');
});
I get successful form data to use within Angular 2, and I had the express server sending emails with a regular express post/get with html files... but I'm not understanding a key part of how to integrate Angular with Express and use it to send an email with Nodemailer. Any help here? Thanks. This is my project structure.

Answer 1

I was answering to the similar question How to make post request from angular to node server
When you post from angular you need to configure cross-origin on your server.
Checkout this github repo https://github.com/kuncevic/angular-httpclient-examples for that matter