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const fs = require('fs');
// const path = require('path');
const axios = require('axios');
const dayjs = require('dayjs');
const weekOfYear = require('dayjs/plugin/weekOfYear');
const handlebars = require('handlebars');
const yesno = require('yesno');
dayjs.extend(weekOfYear);
(async function () {
//const campaignId = 'b03de6fc-ff95-40a0-8707-c0706b3c0b31'; // production
//const campaignId = '2bbcdedb-49d8-48f3-9f33-df6e04c9e5bf'; // testing
const from = { name: 'Mitja Felicijan', email: 'weekly@mitjafelicijan.com' };
const mailingList = process.argv[2] == 'production'
? { env: 'production', id: 'b03de6fc-ff95-40a0-8707-c0706b3c0b31' }
: { env: 'testing', id: '2bbcdedb-49d8-48f3-9f33-df6e04c9e5bf' };
const headers = {
'Authorization': 'Bearer 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',
'Content-Type': 'application/json',
};
// gets current week
let campaign = null;
try {
campaign = require(`./campaigns/${dayjs().format('YYYY')}-${dayjs().week()}.json`);
} catch (err) {
console.error(err);
process.exit(1);
}
// gets list subscribers
const personalizations = [];
const contacts = await axios.get('https://api.sendgrid.com/v3/marketing/contacts', { headers: headers }).catch(error => { console.log(error) });
if (contacts) {
for (const contact of contacts.data.result) {
if (contact.list_ids.includes(mailingList.id)) {
personalizations.push({ to: [{ email: contact.email }] });
}
}
}
// gets handlebars template contents
let template = null;
try {
template = handlebars.compile(fs.readFileSync('template.hbs', 'utf8'));
template = template(campaign);
} catch (e) {
console.error(err);
process.exit(1);
}
// asks for user input to allow sending emails
console.log(`\nWill send to ${personalizations.length} subscribers from list "${mailingList.env}":`)
for (const subscriber of personalizations) {
console.log(' - ', subscriber.to[0].email)
}
const consent = await yesno({
question: '\nAre you sure you want to continue?'
});
if (consent) {
// send actual emails
await axios.post('https://api.sendgrid.com/v3/mail/send', {
from,
subject: `Week #${dayjs().week()} Links`,
personalizations,
content: [{
type: 'text/html',
value: template
}]
}, { headers: headers }).catch(error => { console.log(error) });
}
console.log('\nAnd we are done.\n');
}());
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