Backend JavaScript file EmailJS send error

I'm trying to make a route for my backend javascript express server server.js which will send an email using EmailJS to my gmail account when called.

If I try this code:

const SMTPClient = require("emailjs")

app.post('/emailContactFormSubmission', async (req, res) => {
  const { body, email } = req.body;
  console.log('Contact form submission received:');
  console.log('Body:', body);
  console.log('Email:', email);

  try {
    const client = new SMTPClient({
      user: 'myemail@gmail.com',
      password: 'abcd abcd abcd abcd', // myemail@gmail.com' app password
      host: 'smtp.gmail.com',
      ssl: true,
    });

    const message = await client.sendAsync({
      text: 'i hope this works',
      from: '',
      to: 'myemail@gmail.com',
      cc: '',
      subject: 'testing emailjs',
    });

    console.log('message = ', message);
    res.sendStatus(200);

  } catch (err) {
    console.error('send email err: ', err);
    res.sendStatus(400);
  }


});

The server fails immediately when I run it with node server.js

> node .\server.js
C:\Users\marti\Documents\projects\aws-react-docker-ghactions\server.js:125
const SMTPClient = require("emailjs")
                   ^
Error [ERR_REQUIRE_ESM]: require() of ES Module C:\Users\marti\Documents\projects\aws-react-docker-ghactions\node_modules\emailjs\email.js from C:\Users\marti\Documents\projects\aws-react-docker-ghactions\server.js not supported.
Instead change the require of email.js in C:\Users\marti\Documents\projects\aws-react-docker-ghactions\server.js to a dynamic import() which is available in all CommonJS modules.
    at Object.<anonymous> (C:\Users\marti\Documents\projects\aws-react-docker-ghactions\server.js:125:20) {
  code: 'ERR_REQUIRE_ESM'
}

Node.js v20.15.0

If I change the import line to:

const SMTPClient = require("@emailjs/browser")

My node server launches correctly, but once the route is hit, there's a different error:

> node .\server.js
setSecrets()
isLocal= true
Secrets set successfully      
Server is running on port 3030
Contact form submission received:
Body: a
Email: adam@joe.omc
send email err:  TypeError: SMTPClient is not a constructor
    at C:\Users\marti\Documents\projects\aws-react-docker-ghactions\server.js:135:20

Am I using the EmailJS package correctly? How can I get the send email functionaltiy working with my gmail address, so when the server.js route is hit, it sends an email to my account myemail@gmail.com

The package you're trying to use is an ES Module. To use it in CommonJS (files that use require(), import it this way):

const SMTPClient = await import("emailjs");

Alternatively, switch to ESM yourself. It's the future and more and more packages will switch to this format.