Registers a new Call.

Facts

Method access

HTTP
JavaScript
Python
Java
HTTP
POSThttps://slack.com/api/calls.add
Bolt for Java
app.client().callsAdd
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Bolt for Python
app.client.calls_add
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Content types

application/x-www-form-urlencodedapplication/json
  • Rate limits

    Tier 3
  • Arguments

    Required arguments

    Authentication token bearing required scopes. Tokens should be passed as an HTTP Authorization header or alternatively, as a POST parameter.

    Example
    xxxx-xxxxxxxxx-xxxx

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

    Example
    025169F6-E37A-4E62-BB54-7F93A0FC4C1F

    The URL required for a client to join the Call.

    Example
    https://example.com/calls/1234567890
    Optional arguments

    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.

    Example
    U1H77

    Unix timestamp of the call start time

    Example
    1562002086

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

    Example
    callapp://join/1234567890

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

    Example
    705-292-868

    The name of the Call.

    Example
    Kimpossible sync up

    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"}]

    Usage info

    This method is part of our Calls API.

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

    {
    	"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"
    		}
    	]
    }
    

    Example responses

    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
    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_created_by

    The created_by user ID is invalid.

    invalid_start_time

    The start time is invalid.

    not_authorized

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

    not_implemented

    This method is not available.

    user_not_found

    A specified user wasn't found.

    access_denied

    Access to a resource specified in the request is denied.

    account_inactive

    Authentication token is for a deleted user or workspace when using a bot token.

    deprecated_endpoint

    The endpoint has been deprecated.

    ekm_access_denied

    Administrators have suspended the ability to post a message.

    enterprise_is_restricted

    The method cannot be called from an Enterprise.

    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.

    method_deprecated

    The method has been deprecated.

    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.

    not_authed

    No authentication token provided.

    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.

    token_expired

    Authentication token has expired

    token_revoked

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

    two_factor_setup_required

    Two factor setup is required.

    accesslimited

    Access to this method is limited on the current network

    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.

    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_arguments

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

    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.

    ratelimited

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

    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

    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.

    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.

    Arguments

    Need a token? Create and install a Slack app to begin.
    This will make a real API request. Beware of using it with live workspaces.

    API response


    Submit your arguments to see the API response