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Object Types

These are the core objects you'll find throughout the platform — as part of Web API responses, Slash Command invocations, Message Button actions, and the events flowing through the RTM API & Events API.

Type Description
channel A public channel
conversation A channel-like container for a conversation used by the Conversations API
event A wrapper for event types delivered in Events API subscriptions
file A file, snippet or post uploaded to Slack
group A private group
im A direct message channel with a user
mpim A multiparty direct message
user A member in your workspace
usergroup A group of users, such as @marketing-team or @finance