@jackdbd/notifications/lib/sendgrid.js

Functions used to send notifications to various channels (Telegram, email, etc)

import { debuglog } from 'node:util';
import email from '@sendgrid/mail';
const debug = debuglog('notifications/sendgrid');
const errorMessageFromSendgridApi = ({ err }) => {
    const errors = err.response.body.errors;
    const error_messages = errors.map((error) => error.message);
    const error_message = error_messages.join('; ');
    switch (err.code) {
        case 400:
        case 401: {
            return error_message;
        }
        default: {
            return error_message;
        }
    }
};
/**
 * Send an email to one or more recipients, using the SendGrid API.
 *
 * https://docs.sendgrid.com/api-reference/mail-send/mail-send#body
 */
export const send = async ({ from, html, sendgrid_api_key, subject, to }, options) => {
    if (!sendgrid_api_key) {
        throw new Error('sendgrid_api_key not set');
    }
    if (!from) {
        throw new Error('from not set');
    }
    if (!to) {
        throw new Error('to not set');
    }
    if (!subject) {
        throw new Error('subject not set');
    }
    debug('options: %O', options);
    // https://docs.sendgrid.com/for-developers/sending-email/personalizations
    // const template_id = options?.template_id
    email.setApiKey(sendgrid_api_key);
    const recipient = Array.isArray(to) ? to.join(', ') : to;
    const data = {
        from,
        html,
        subject,
        to
    };
    // https://www.twilio.com/blog/sending-bulk-emails-3-ways-sendgrid-nodejs
    const isMultiple = undefined;
    try {
        const [res] = await email.send(data, isMultiple);
        return {
            message: `email from ${from} to ${recipient} will be delivered by SendGrid`,
            sendgrid_message_id: res.headers['x-message-id']
        };
    }
    catch (err) {
        debug(`SendGrid API could not respond. Original error: %O`, err);
        throw new Error(errorMessageFromSendgridApi({ err: err }));
    }
};
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