Delete all Slack files older than 30 days, for a specific user

delete_old_slack_files.js

const https = require('https');

// Get your token here https://api.slack.com/custom-integrations/legacy-tokens
const TOKEN = '';
// Find your user ID here https://api.slack.com/methods/auth.test/test
const USER_ID = '';

const delay = 300; // delay between delete operations in millisecond
const baseApiUrl = 'https://slack.com/api/';
const fileListApiUrl = baseApiUrl + 'files.list?token=' + TOKEN + '&count=1000';
const deleteApiUrl = baseApiUrl + 'files.delete?token=' + TOKEN;
const thirtyDaysAgoTimeStamp = Math.round(
  (new Date().getTime() - 1000 * 60 * 60 * 24 * 30) / 1000
);

// ---------------------------------------------------------------------------------------------------------------------

function deleteFile({ id: fileId } = {}) {
  https
    .get(`${deleteApiUrl}&file=${fileId}`, res => {
      let body = '';
      res.on('data', chunk => {
        body += chunk;
      });

      res.on('end', () => {
        const { ok } = JSON.parse(body);

        if (ok === true) {
          console.log(fileId + ' deleted!');
        }

        setTimeout(deleteFile, delay);
      });
    })
    .on('error', error => {
      console.log('Got an error: ', error);
    });
}

// ---------------------------------------------------------------------------------------------------------------------

https
  .get(
    `${fileListApiUrl}&user=${USER_ID}&ts_to=${thirtyDaysAgoTimeStamp}`,
    res => {
      let body = '';
      res.on('data', chunk => {
        body += chunk;
      });

      res.on('end', () => {
        const { files } = JSON.parse(body);
        files.map(deleteFile);
      });
    }
  )
  .on('error', error => {
    console.log('got an error: ', error);
  });