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This Ruby script will bulk remove all Slack files older than 30 days. Just add your API token from https://api.slack.com/web#authentication into the token quotes at the top of the file.
require 'net/http'
require 'json'
require 'uri'
@token = ''
def list_files
ts_to = (Time.now - 30 * 24 * 60 * 60).to_i # 30 days ago
params = {
token: @token,
ts_to: ts_to,
count: 1000
}
uri = URI.parse('https://slack.com/api/files.list')
uri.query = URI.encode_www_form(params)
response = Net::HTTP.get_response(uri)
JSON.parse(response.body)['files']
end
def delete_files(file_ids)
file_ids.each do |file_id|
params = {
token: @token,
file: file_id
}
uri = URI.parse('https://slack.com/api/files.delete')
uri.query = URI.encode_www_form(params)
response = Net::HTTP.get_response(uri)
p "#{file_id}: #{JSON.parse(response.body)['ok']}"
end
end
p 'Deleting files...'
files = list_files
file_ids = files.map { |f| f['id'] }
delete_files(file_ids)
p 'Done!'
@drewlustro
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drewlustro commented Jan 28, 2017

thank you.

@oleyb
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oleyb commented Mar 10, 2017

This somehow deleted ALL of our files, not just things older than 30 days.

@vadimpeskov
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vadimpeskov commented Apr 5, 2017

How to fix this?
$ ruby slack_delete2.rb
"Deleting files..."
slack_delete2.rb:35:in <main>': undefined method map' for nil:NilClass (NoMethodError)

@diegodurante
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diegodurante commented Apr 10, 2017

@vadimpeskov I was facing the same issue.

Problem was that I was trying to use the client secret of the slack application that I created from here: https://api.slack.com/web#authentication

But this is generating the "invalid_token" error and so the list_files method was returning nil value and for this reason the error "undefined methodmap' for nil:NilClass" was raised at line 35.

I solved this issue by generating a real token (NOT client_secret or cliend_id related to an app).
To generate a token you have to follow this guide: https://get.slack.help/hc/en-us/articles/215770388-Create-and-regenerate-API-tokens

@jamescmartinez many thanks for this! But please consider to update the description of how to use this by telling people to generate the legacy token as reported here: https://get.slack.help/hc/en-us/articles/215770388-Create-and-regenerate-API-tokens

@kenshin6
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kenshin6 commented Apr 11, 2017

@jamescmartinez Super helpful!

Ran into the same issue as @jwilkinson with the 100 files per run. For people with a ton of files, you can run it multiple times with:

for run in {1..10}
do
  ruby slack_delete.rb
done

Change the outside limit on the range to be as big as you need it to be.

@theapplepastor
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theapplepastor commented May 16, 2017

I ran the script yesterday using the token generated following @diegodurante post and it seems to only have deleted my user files, I am a team owner, any ideas?

@tomleo
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tomleo commented Jul 24, 2017

I just built a python script that does basically the same thing but will a few more command line arguments https://gitlab.com/tomleo/SlackFileCleanup/ I would have forked this repo but I don't know ruby. ☮️

@AknEp
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AknEp commented Sep 29, 2017

Great script!

I updated Line 35 to this:

file_ids = files.select{ |f| f["size"] > 10000 }.map { |f| f['id'] }

It removes only heavy files (> 10KB).

@icfantv
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icfantv commented Oct 28, 2017

OMG. ❤️ Thank you so much!

@Hungor
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Hungor commented Dec 4, 2017

Thanks!

@jaredfaris
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jaredfaris commented Jan 3, 2018

Very helpful. Also very easy to parse your code so I could figure out what you were doing before I ran it ;)

@Antol
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Antol commented Jan 17, 2018

Is it only me? I have successfully deleted a big bunch of files but Slack Analitycs still shows the same size of storage usage. I am sure that files have been deleted because if I go to Files panel I can see only 99 instead of few thousands.

@DrFitch
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DrFitch commented Jan 23, 2018

Thank's man, works like a charm

@Shakkiboy
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Shakkiboy commented Feb 4, 2018

@jamescmartinez,
Great piece of work, it really works like a charm, I had one question there are more than hundred member in my team and I have their slack token with me but I have to use 1 token at one time and run this script is there any way to add multiple token in this script so that I can run this script for a group of users ?

Second it is checking for each and every file that was shared with this person and it took long time to delete because some of the files are not shared with this person so script took a lot time, is there any possibility so that script could check only for the files that were uploaded by the use only and delete them ?

Its just a humble request if possible although you have already made our life easy :)

Thank you so much!

@serafimpinto
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serafimpinto commented Mar 7, 2018

Worked just fine! 👍

@marina-mosti
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marina-mosti commented Mar 14, 2018

Great script, thanks

@Petrov-Dmitry
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Petrov-Dmitry commented Mar 26, 2018

I have a trouble... When I running the script, I get a lot of messages like this
"F206K98J3: false"
All files after the script is finished remain not deleted

UPD: Resolved - you must be an admin of your workspace to delete files

@MikeLund
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MikeLund commented Mar 28, 2018

Anyone modify it to download the file before deleting it? Would be useful, so you can free Slack storage but still have some stuff archived.

@bahaddad
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bahaddad commented Apr 21, 2018

@MikeLund, it only seems to work with current year files, anything older remains.

@evangs
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evangs commented May 8, 2018

this is great, thanks! I converted to nodejs to better fit my environment. check it out here https://gist.github.com/evangs/85f70573a9046990df4ff820151e0b08

@hez
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hez commented May 16, 2018

If you get rate limited by slack insert a wait on line 22
sleep 1
Found I had to go all the way down to one a second to avoid getting throttled.

@nandodelauni
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nandodelauni commented May 31, 2018

I was using the script and worked like a charm, however last week it starting failing and I've no idea of Ruby, maybe I've got Ruby updated or something? It throws away this error:

bulk_slack_files.rb:35:in <main>': undefined method map' for nil:NilClass (NoMethodError)

line 35 is the same as the one shown in the gist file_ids = files.map { |f| f['id'] }

Any clue? Thanks!

@luisenrike
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luisenrike commented May 31, 2018

@nandodelauni I had the same error and it was because I was using an invalid token

@nandodelauni
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nandodelauni commented Jun 6, 2018

thanks @luisenrike!

@ryanckulp
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ryanckulp commented Jun 8, 2018

here's the new URL for generating Legacy workspace tokens:
https://api.slack.com/custom-integrations/legacy-tokens

@savetrev
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savetrev commented Jul 17, 2018

Sorry, I'm not a programmer and am having problems figuring out where to run this code.

Edit: Ahh nevermind, a colleague helped me out. I had to download node.js first :-(

@dominikwilkowski
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dominikwilkowski commented Sep 21, 2018

I just added a node gist to batch delete files older than a year
https://gist.github.com/dominikwilkowski/76d99ae84848c39e54494f4dbdd4327d

Comes with instructions too :)

@ayhamg
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ayhamg commented Oct 1, 2018

An easier way is to use, no coding required.

https://delete-slack-files.com/

@halburgiss
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halburgiss commented Oct 16, 2018

I get an HTML doc with little helpful error handling, that starts:

400 ERROR

The request could not be satisfied.

@ayhamg Right now that link is 404.

@danibram
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danibram commented Feb 22, 2019

I just developed a bot that helps you to manage this, any contribution is welcome!
https://github.com/danibram/scrapy-slack-bot

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