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Page updated May 16, 2024

Flush logs

When using the Amplify Logger, all logged messages are saved locally on the user's device first and then flushed at a set interval that you can customize. You can also choose to flush events manually if needed by following the steps outlined in this section.

Change automatic log flush interval

You can customize the time interval for when logs are automatically flushed and sent to CloudWatch.

Below is an example of setting the time interval to 120 seconds:

Update the flushIntervalInSeconds field in the logging configuration file.

"awsCloudWatchLoggingPlugin": {
"enable": true,
"logGroupName": "<log-group-name>",
"region": "<region>",
"localStoreMaxSizeInMB": 1,
"flushIntervalInSeconds": 120,
"loggingConstraints": {
"defaultLogLevel": "ERROR"

Provide a flushIntervalInSeconds parameter initialization and configuration of the AWSCloudWatchLoggingPlugin.

do {
let loggingConfiguration = AWSCloudWatchLoggingPluginConfiguration(logGroupName: "<log-group-name>", region: "<region>", flushIntervalInSeconds: 120)
let loggingPlugin = AWSCloudWatchLoggingPlugin(loggingPluginConfiguration: loggingConfiguration)
try Amplify.add(plugin: loggingPlugin)
try Amplify.configure(with: .amplifyOutputs)
} catch {
assert(false, "Error initializing Amplify: \(error)")

Manually flush logs

You can choose at anytime to flush the log messages that are saved locally on the user's device, to then send them immediately to Amazon CloudWatch.

Add import statement to the AWSCloudWatchLoggingPlugin

import AWSCloudWatchLoggingPlugin

Execute the flush log function from the plugin.

let cloudWatchPlugin = try Amplify.Logging.getPlugin(for: "awsCloudWatchLoggingPlugin") as? AWSCloudWatchLoggingPlugin
try await cloudWatchPlugin?.flushLogs()