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files.remote.add

Adds a file from a remote service

Facts

Method URL:https://slack.com/api/files.remote.add
Preferred HTTP method:GET
Accepted content types:application/x-www-form-urlencoded
Rate limiting:Tier 2
Works with:
Token typeRequired scope(s)
botbot
userremote_files:write 

File threads are here

A new file commenting experience arrived on July 23, 2018. Learn more about what's new and the migration path for apps already working with files and file comments.

The add method adds a remote file to Slack. Adding a file does not share it to a channel. To make your beautiful remote file visible, use the files.remote.share method.

Remote files exist across the whole workspace (or organization, for Enterprise Grid). Because of that, remote files must be added by bots with the bot scope, not by an individual user.

Arguments

Argument Example Required Description
tokenxxxx-xxxxxxxxx-xxxxRequired

Authentication token bearing required scopes.

external_id123456Required

Creator defined GUID for the file.

external_urlhttp://example.com/my_cloud_service_file/abc123Required

URL of the remote file.

titleDanger, High Voltage!Required

Title of the file being shared.

filetypedocOptional

type of file

indexable_file_contents...Optional

File containing contents that can be used to improve searchability for the remote file.

preview_image...Optional

Preview of the document via multipart/form-data.

Present arguments as parameters in application/x-www-form-urlencoded querystring or POST body. This method does not currently accept application/json.

preview_image is displayed when your remote file is shared. It's a binary image file.

external_id is the unique ID of the remote file, according to the external host of the file.

indexable_file_contents is used to determine how the remote file appears in Slack searches.

Note: this method performs an upsert. If you add a file that has been added before, the existing file will be updated.

Response

    {
        "ok": true,
        "file": {
            "id": "F0GDJ3XMH",
            "created": 1563919925,
            "timestamp": 1563919925,
            "name": "LeadvilleAndBackAgain",
            "title": "LeadvilleAndBackAgain",
            "mimetype": "application/vnd.slack-remote",
            "filetype": "remote",
            "pretty_type": "Remote",
            "user": "U0F8RBVNF",
            "editable": false,
            "size": 0,
            "mode": "external",
            "is_external": true,
            "external_type": "app",
            "is_public": false,
            "public_url_shared": false,
            "display_as_bot": false,
            "username": "",
            "url_private": "https://docs.google.com/document/d/1TA9fIaph4eSz2fC_1JGMuYaYUc4IvieIop0WqfCXw5Y/edit?usp=sharing",
            "permalink": "https://kraneflannel.dev862.slack.com/files/U0F8RBVNF/F0GDJ3XMH/leadvilleandbackagain",
            "comments_count": 0,
            "is_starred": false,
            "shares": {},
            "channels": [],
            "groups": [],
            "ims": [],
            "external_id": "1234",
            "external_url": "https://docs.google.com/document/d/1TA9fIaph4eSz2fC_1JGMuYaYUc4IvieIop0WqfCXw5Y/edit?usp=sharing",
            "has_rich_preview": false
        }
    }

One tricky bit: in the response, the file object may indicate that "has_rich_preview" is false, even if you include preview_image. That's because it takes a few seconds for Slack to parse the preview_image you pass. If you call files.remote.add with the same external_id later, you'll see "has_preview_image": true.

Errors

This table lists the expected errors that this method could return. However, other errors can be returned in the case where the service is down or other unexpected factors affect processing. Callers should always check the value of the ok params in the response.

ErrorDescription
bad_image

The uploaded image could not be processed - try passing a JPG or PNG

too_large

The uploaded image had excessive dimensions

invalid_external_id

The external_id provided is too long.

bad_title

The title provided is too long.

not_authed

No authentication token provided.

invalid_auth

Some aspect of authentication cannot be validated. Either the provided token is invalid or the request originates from an IP address disallowed from making the request.

account_inactive

Authentication token is for a deleted user or workspace.

token_revoked

Authentication token is for a deleted user or workspace or the app has been removed.

no_permission

The workspace token used in this request does not have the permissions necessary to complete the request. Make sure your app is a member of the conversation it's attempting to post a message to.

org_login_required

The workspace is undergoing an enterprise migration and will not be available until migration is complete.

ekm_access_denied

Administrators have suspended the ability to post a message.

missing_scope

The token used is not granted the specific scope permissions required to complete this request.

invalid_arguments

The method was called with invalid arguments.

invalid_arg_name

The method was passed an argument whose name falls outside the bounds of accepted or expected values. This includes very long names and names with non-alphanumeric characters other than _. If you get this error, it is typically an indication that you have made a very malformed API call.

invalid_charset

The method was called via a POST request, but the charset specified in the Content-Type header was invalid. Valid charset names are: utf-8 iso-8859-1.

invalid_form_data

The method was called via a POST request with Content-Type application/x-www-form-urlencoded or multipart/form-data, but the form data was either missing or syntactically invalid.

invalid_post_type

The method was called via a POST request, but the specified Content-Type was invalid. Valid types are: application/json application/x-www-form-urlencoded multipart/form-data text/plain.

missing_post_type

The method was called via a POST request and included a data payload, but the request did not include a Content-Type header.

team_added_to_org

The workspace associated with your request is currently undergoing migration to an Enterprise Organization. Web API and other platform operations will be intermittently unavailable until the transition is complete.

request_timeout

The method was called via a POST request, but the POST data was either missing or truncated.

fatal_error

The server could not complete your operation(s) without encountering a catastrophic error. It's possible some aspect of the operation succeeded before the error was raised.

Warnings

This table lists the expected warnings that this method will return. However, other warnings can be returned in the case where the service is experiencing unexpected trouble.

WarningDescription
missing_charset

The method was called via a POST request, and recommended practice for the specified Content-Type is to include a charset parameter. However, no charset was present. Specifically, non-form-data content types (e.g. text/plain) are the ones for which charset is recommended.

superfluous_charset

The method was called via a POST request, and the specified Content-Type is not defined to understand the charset parameter. However, charset was in fact present. Specifically, form-data content types (e.g. multipart/form-data) are the ones for which charset is superfluous.