Chat iOS v4
Chat iOS
This is the new Docs for Chat SDK v4 beta for iOS. To see the previous Docs, click here.


Sendbird Chat SDK for iOS offers a logging system that allows you to keep track of a number of events and activities including data flow, error, and information while running your application. You can closely monitor the operation of the Sendbird SDK and improve debug efficiency using our logging system.

Log types

Log types, or log levels, can be used to categorize and control log outputs. The following table lists four different log types for the logger in Sendbird Chat SDK for iOS.

List of log types



No logs recorded.


Logs what have caused failures in the specific events, but not an SDK-wide failure.


Logs unexpected events which wouldn’t affect the operation of Chat SDK, but might cause problems.


Logs general events of Chat SDK.

How to configure the log type

The default log type set for Sendbird Chat SDK for iOS is LogLevel.warning, which means that Sendbird SDK will keep logs of warning messages. You can change the settings through the setLoggerLevel() method in the SendbirdChat class as follows:

SendbirdChat.setLogLevel([.error, .info])

List of parameters

Parameter nameTypeDescription



Specifies the severity level of log to retrieve. One takes precedence over the other in the order of LogLevelNone, LogLevelError, LogLevelWarning, and LogLevelInfo.

Log filtering

All Sendbird Chat SDK log messages are tagged with [Sendbird]. If you want to see the log messages from Sendbird Chat SDK, search for the messages with a keyword [Sendbird].

The following logs show how to read Sendbird Chat SDK logs.

2021-01-08 08:17:27.179097-0800 SendbirdChatApplication[73884:2580607] [Sendbird](I)-[WebSocketClient.m:306] webSocket:didCloseWithCode:reason:wasClean:
2021-01-08 08:17:27.206567-0800 SendbirdChatApplication[73884:2580607] [Sendbird](E)-[WebSocketClient.m:190] quit() with error: (null)
2021-01-08 08:17:27.216912-0800 SendbirdChatApplication[73884:2580607] [Sendbird](I)-[WebSocketClient.m:140] Stop Pinger.
2021-01-08 08:17:27.227669-0800 SendbirdChatApplication[73884:2580607] [Sendbird](I)-[WebSocketClient.m:116] Stop Watchdog.
2021-01-08 08:17:27.228149-0800 SendbirdChatApplication[73884:2580607] [Sendbird](I)-[SendbirdChat.m:810] WS Close.