NodeJS email-templates i18n localization

Question

I'm having trouble with the pug templates' localization while using i18n. The language continues reverting to "en," but I've set the locale:'sl' in the send() method, which I got from the email-templates manual.

Here is my code in typescript:

import * as path from 'path';
import Email = require("email-templates");
import { transporter } from '../mailerConnection';
import { I18n } from 'i18n';

export async function sendOutActivationEmail() {

  const i18n = new I18n();
  i18n.configure({
    locales: ['en', 'sl'],
    directory: path.join(__dirname, '../../locales'),
    register: global
  });

  const email = new Email({
    message: {
      from: '"test" <noreplay@test.com>'
    },
    // uncomment below to send emails in development/test env:
    //send: true,
    transport: transporter,
    i18n: i18n
  });

  
  email
    .send({
      template: path.join(__dirname, '../templates', 'activation'),
      message: {
        to: 'test@gmail.com'
      },
      locals: {
        locale: 'sl',
        name: 'Test'
      }
    })
    .then(console.log)
    .catch(console.error);

}
sendOutActivationEmail().catch(console.error);

Here is html.pug template:

p= __('message')

Here is en.json:

{
    "message": "message1"
} 

Here is sl.json:

{
    "message": "messageSLO"
} 

Here is the link to email-templates localization documentation: https://www.npmjs.com/package/email-templates#localization

What am I doing wrong that the functions doesn't switch to "sl" language? Thanks.

Answer 1

The i18n object does not appear to be documented in email-templates, but you'll probably need to give the required translations someplace...

This, on the other hand, appears to be more promising:

https://dev.to/adrai/how-does-server-side-internationalization-i18n-look-like-5f4c#email