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SDKs
Chat SDKs .NET v4
Chat SDKs .NET
Chat SDKs
.NET
Version 4

Rate limits

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Sendbird applications are rate-limited to ensure the best experience for users. If you exceed a rate limit, the Sendbird server returns an error message that includes the encountered rate limit as well as how long you should wait before retrying.

Note : Sendbird organizations created after May 28, 2020, 00:00:00 UTC are automatically rate-limited, while those created before this date are given sufficient time to adjust their applications before rate limits apply. Go to Settings > Application > General on Sendbird Dashboard to see which rate limits your organizations are subject to. If you need a higher rate limit for API requests, contact our sales team for further assistance.


Default settings

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To prevent abnormal user activity, Sendbird application has the following default limits on the number of messages per second which a user can send and a channel can display.

Limits on number of messages per second

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Imposed onLimitIf exceeded

User

Five messages per second

Excess messages are neither sent to the channel nor saved in the database but are displayed in the user's channel view.

Channel

Five messages per second

Excess messages aren't displayed but saved in the database.


Rate-limited methods

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Rate limits apply to SDK methods associated with objects including channel, user objects, and more. For example, a user can send up to five messages per second to an open channel or a group channel. The following table lists the default rate limits per user.

Limits on SDK methods

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SDK methodCalls per secondCalls per minute

Listing objects

20

120

Retrieving objects

20

120

Creating objects

10

120

Updating objects

10

120

Deleting objects

10

120

Profile image upload

2

40

File upload

4

60

Updating channel metacounter

20

400


Rate-limited real-time events

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Several real-time events taking place in client apps are rate-limited in order to maintain stable and efficient operation. The following table lists the default rate limits for those events.

Limits on events

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EventCalls per second

Sending a message

5

Marking messages as read

3

Sending typing indicator to other members

* The limit applies to both users and channels.

0.1

Other events

* These include sending a file message, editing a message, or marking messages as delivered.

3


Error responses

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When a request is rate-limited, a rateLimitExceeded (500910) or socketTooManyMessages (900200) error is returned. See the error codes page for more information.