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import 'dotenv/config';
import express from 'express';
import cron from 'node-cron';
import {
InteractionType,
InteractionResponseType,
verifyKeyMiddleware,
} from 'discord-interactions';
// Create an express app
const app = express();
// Get port, or default to 3000
const PORT = process.env.PORT || 3000;
/**
* Interactions endpoint URL where Discord will send HTTP requests
* Parse request body and verifies incoming requests using discord-interactions package
*/
app.post('/', verifyKeyMiddleware(process.env.PUBLIC_KEY), async function (req, res) {
// Interaction type and data
const { type, data } = req.body;
/**
* Handle verification requests
*/
if (type === InteractionType.PING) {
return res.send({ type: InteractionResponseType.PONG });
}
/**
* Handle slash command requests
* See https://discord.com/developers/docs/interactions/application-commands#slash-commands
*/
if (type === InteractionType.APPLICATION_COMMAND) {
const { name, options } = data;
if (name === 'schedule_message') {
const message = options[0].value;
const crontab = options[1].value;
const valid = cron.validate(crontab);
const content = valid ? 'registered message "' + message + '" with cron "' + crontab + '"' : 'invalid cron';
if (valid) {
cron.schedule(crontab, () => {
console.log(message);
});
}
return res.send({
type: InteractionResponseType.CHANNEL_MESSAGE_WITH_SOURCE,
data: {
content: content,
},
});
}
console.error(`unknown command: ${name}`);
return res.status(400).json({ error: 'unknown command' });
}
console.error('unknown interaction type', type);
return res.status(400).json({ error: 'unknown interaction type' });
});
app.listen(PORT, () => {
console.log('Listening on port', PORT);
});
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