slack-remove-files

//you need to log in to slack here: https://api.slack.com/methods/files.list/test
// generate a required token for your team
// select your username
// click 'test method'
// take note of the 'token' and 'user' url params in the example and update the script below
// this script works with node 4.1. before running, `npm i -g request`

// run it with the harmony flag - ex `node --harmony scriptname.js
// give it a few seconds in between running this script. The api is a bit slow and will take a few seconds to allow you to submit more requests

var request = require('request');
var https = require('https');

var slackID = `abcd-####-####-####-#a#a`;
var user = `ALPHANUMERIC`
request.get(`https://slack.com/api/files.list?token=${slackID}&user=${user}&pretty=1`, function (error, response, content) {
  if (!error) {
    var slackFiles = JSON.parse(content).files;
    for( var i in slackFiles){
      request.post(`https://slack.com/api/files.delete?token=${slackID}&file=${slackFiles[i].id}&pretty=1`, function (error, response, content) {
        if (!error) {
          console.log(slackFiles[i].id, content);
        };
      });

    }
  }
});