👥Events & Channels Limits

HTTP REST API Limits

General limits for the soketi REST API are defined at the server level:

Name	Default	Possible values	Description
HTTP_MAX_REQUEST_SIZE	100	Any number (in MB)	The maximum size, in MB, for the total size of the request before throwing 413 Entity Too Large

Event Limits

Besides the general request size limit defined above, you may define limits for specific pieces of incoming data, such as the maximum allowed event size or the maximum event name length. These limits apply globally across all servers:

Number	Default	Possible values	Description
EVENT_MAX_CHANNELS_AT_ONCE	100	Any integer	The maximum number of channels that the client can broadcast to from a single /events request.
EVENT_MAX_NAME_LENGTH	200	Any integer	The maximum length of an event name.
EVENT_MAX_SIZE_IN_KB	100	Any float	The maximum size, in KB, of broadcast payloads.
EVENT_MAX_BATCH_SIZE	10	Any integer	The maximum amount of messages that can be sent in one /batch_events call.

Channel Limits

Channel interaction is often limited to prevent unwanted memory attacks using very long channel names. For example, the default limit for a channel name is 100 characters; however, you can change this limit according to your needs.

Environment variable	Default	Possible values	Description
CHANNEL_MAX_NAME_LENGTH	100	Any integer	The maximum length of a channel name. Channel name prefixes are counted against this limit.

Presence Channel Limits

When dealing with the presence channels, connection details must also be stored. This can lead to memory issues unless proper limits are in place. By default, there are limits in place for the maximum size of a member's information details and how many members can be present within a single presence channel.

Environment variable	Default	Possible values	Description
PRESENCE_MAX_MEMBER_SIZE	10	Any float	The maximum member data size, in KB, for each member in a presence channel.
PRESENCE_MAX_MEMBERS	100	Any integer	The maximum number of members that can simultaneously be connected to a single presence channel.