strapi/packages/strapi-plugin-email/config/functions/bootstrap.js

'use strict';

const _ = require('lodash');

const createProvider = emailConfig => {
  const providerName = _.toLower(emailConfig.provider);
  let provider;
  try {
    provider = require(`strapi-provider-email-${providerName}`);
  } catch (err) {
    throw new Error(
      `The provider package isn't installed. Please run \`npm install strapi-provider-email-${providerName}\` --save`
    );
  }
  return provider.init(emailConfig.providerOptions);
};

module.exports = async () => {
  const emailConfig = _.get(strapi.plugins, 'email.config', {});
  strapi.plugins.email.provider = createProvider(emailConfig);
};