calls.add

Registers a new Call.

This method is part of our Calls API.

Arguments

token

Authentication token bearing required scopes.

Examplexxxx-xxxxxxxxx-xxxx
external_unique_id

An ID supplied by the 3rd-party Call provider. It must be unique across all Calls from that service.

Example025169F6-E37A-4E62-BB54-7F93A0FC4C1F
join_url

The URL required for a client to join the Call.

Examplehttps://example.com/calls/1234567890
created_by

The valid Slack user ID of the user who created this Call. When this method is called with a user token, the created_by field is optional and defaults to the authed user of the token. Otherwise, the field is required.

ExampleU1H77
date_start

Call start time in UTC UNIX timestamp format

Example1562002086
desktop_app_join_url

When supplied, available Slack clients will attempt to directly launch the 3rd-party Call with this URL.

Examplecallapp://join/1234567890
external_display_id

An optional, human-readable ID supplied by the 3rd-party Call provider. If supplied, this ID will be displayed in the Call object.

Example705-292-868
title

The name of the Call.

ExampleKimpossible sync up
users

The list of users to register as participants in the Call. Read more on how to specify users here.

Example[{"slack_id": "U1H77"}, {"external_id": "54321678", "display_name": "External User", "avatar_url": "https://example.com/users/avatar1234.jpg"}]

This method supports application/json via HTTP POST. Present your token in your request's Authorization header. Learn more.

For more information on how to specify users, read our additional documentation in the usage guide.

Response

{
	"ok": true,
	"call": {
		"id": "R0E69JAIF",
		"date_start": 1562002086,
		"external_unique_id": "025169F6-E37A-4E62-BB54-7F93A0FC4C1F",
		"join_url": "https://example.com/calls/1234567890",
		"desktop_app_join_url": "callapp://join/1234567890",
		"external_display_id": "705-292-868",
		"title": "Kimpossible sync up",
		"users": [
			{
				"slack_id": "U0MQG83FD"
			},
			{
				"external_id": "54321678",
				"display_name": "Kim Possible",
				"avatar_url": "https://callmebeepme.com/users/avatar1234.jpg"
			}
		]
	}
}

Note that the success response includes an id associated with the Call. This ID can be used to post the Call to a channel by using the chat.postMessage method with the following block:

{
	"blocks": [
		{
			"type": "call",
			"call_id": "R0E69JAIF"
		}
	]
}

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
not_implemented

This method is not available.

internal_error

The server could not complete your operation(s) without encountering an error, likely due to a transient issue on our end. It's possible some aspect of the operation succeeded before the error was raised.

invalid_start_time

The start time is invalid.

not_authorized

The specified user is not authorized to create a Call in this channel.

user_not_found

A specified user wasn't found.

invalid_created_by

The created_by user ID is invalid.

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.

not_allowed_token_type

The token type used in this request is not allowed.

method_deprecated

The method has been deprecated.

deprecated_endpoint

The endpoint has been deprecated.

two_factor_setup_required

Two factor setup is required.

enterprise_is_restricted

The method cannot be called from an Enterprise.

invalid_arguments

The method was either called with invalid arguments or some detail about the arguments passed are invalid, which is more likely when using complex arguments like blocks or attachments.

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_array_arg

The method was passed an array as an argument. Please only input valid strings.

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.

ratelimited

The request has been ratelimited. Refer to the Retry-After header for when to retry the request.

accesslimited

Access to this method is limited on the current network

request_timeout

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

service_unavailable

The service is temporarily unavailable

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.

ArgumentValue
tokenRequiredNeed a token? Create and install a Slack app to begin.
external_unique_idRequired
join_urlRequired
created_byOptional
date_startOptional
desktop_app_join_urlOptional
external_display_idOptional
titleOptional
usersOptional
Extra args
  

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