---
title: "Change log levels"
section: "frontend/logging"
platforms: ["android", "swift"]
gen: 2
last-updated: "2026-03-25T17:40:00.000Z"
url: "https://docs.amplify.aws/react/frontend/logging/change-log-levels/"
---

In this section, you will learn about how to configure the logging level in your application when using the Amplify logger. This is helpful to help you determine the logging level that works best for your use cases, and which levels of errors or warnings you want to capture in Amazon Cloudwatch.

## Change Default Log Level

Below is an example of setting the default log level to `WARN`:

<!-- Platform: android -->

  #### [With Configuration File]
Update the `defaultLogLevel` field under `loggingConstraints`.

```json
{
    "awsCloudWatchLoggingPlugin": {
        "enable": true,
        "logGroupName": "<log-group-name>",
        "region": "<region>",
        "localStoreMaxSizeInMB": 1,
        "flushIntervalInSeconds": 60,
        "loggingConstraints": {
            "defaultLogLevel": "WARN"
        }
    }
}
```

The following are supported log levels:
* `ERROR`
* `WARN`
* `INFO`
* `DEBUG`
* `VERBOSE`
* `NONE`

Setting the log level to `NONE` effectively disables logging.
  
  #### [With Code]
Provide a default log level at initialization and configuration of the AWSCloudWatchLoggingPlugin.

#### [Java]

```java
LoggingConstraints loggingConstraints = new LoggingConstraints(LogLevel.WARN);
AWSCloudWatchLoggingPluginConfiguration config = new AWSCloudWatchLoggingPluginConfiguration (<log-group-name>, <region>, loggingConstraints);
Amplify.addPlugin(new AWSCloudWatchLoggingPlugin(config));
```

#### [Kotlin]

```kotlin
val loggingConstraints = LoggingConstraints(defaultLogLevel = LogLevel.WARN)
val config = AWSCloudWatchLoggingPluginConfiguration(logGroupName = <log-group-name>, region = <region>, loggingConstraints = loggingConstraints)
Amplify.addPlugin(AWSCloudWatchLoggingPlugin(config))
```

#### [RxJava]

```java
LoggingConstraints loggingConstraints = new LoggingConstraints(LogLevel.WARN);
AWSCloudWatchLoggingPluginConfiguration config = new AWSCloudWatchLoggingPluginConfiguration (<log-group-name>,<region>, loggingConstraints);
Amplify.addPlugin(new AWSCloudWatchLoggingPlugin(config));
```

The following are supported log levels:
```java
LogLevel.ERROR
LogLevel.WARN
LogLevel.INFO
LogLevel.DEBUG
LogLevel.VERBOSE
LogLevel.NONE
```
Setting the log level to LogLevel.NONE effectively disables logging.

  

<!-- /Platform -->

<!-- Platform: swift -->

  #### [With Configuration File]
Update the `defaultLogLevel` field under `loggingConstraints`.

```json
{
    "awsCloudWatchLoggingPlugin": {
        "enable": true,
        "logGroupName": "<log-group-name>",
        "region": "<region>",
        "localStoreMaxSizeInMB": 1,
        "flushIntervalInSeconds": 60,
        "loggingConstraints": {
            "defaultLogLevel": "WARN"
        }
    }
}
```

The following are supported log levels:
* `ERROR`
* `WARN`
* `INFO`
* `DEBUG`
* `VERBOSE`
* `NONE`

Setting the log level to `NONE` effectively disables logging.
  
  #### [With Code]
Provide a default log level at initialization and configuration of the `AWSCloudWatchLoggingPlugin`.

```swift
do {
    let loggingConstraints = LoggingConstraints(defaultLogLevel: .warn)
    let loggingConfiguration = AWSCloudWatchLoggingPluginConfiguration(logGroupName: "<log-group-name>", region: "<region>", loggingConstraints: loggingConstraints)
    let loggingPlugin = AWSCloudWatchLoggingPlugin(loggingPluginConfiguration: loggingConfiguration)
    try Amplify.add(plugin: loggingPlugin)
} catch {
    assert(false, "Error initializing Amplify: \(error)")
}
```

The following are supported log levels:
```swift
LogLevel.error
LogLevel.warn
LogLevel.info
LogLevel.debug
LogLevel.verbose
LogLevel.none
```

Setting the log level to `LogLevel.none` effectively disables logging.
  

<!-- /Platform -->

## Configure Log Level by Category

Each Amplify category can be configured to have its own logging level.

Below is an example of setting different logging levels for the Storage and Auth categories.

  #### [With Configuration File]
Add a `categoryLogLevel` section and specify each category and its log level.

```json
{
    "awsCloudWatchLoggingPlugin": {
        "enable": true,
        "logGroupName": "<log-group-name>",
        "region": "<region>",
        "localStoreMaxSizeInMB": 1,
        "flushIntervalInSeconds": 60,
        "loggingConstraints": {
            "defaultLogLevel": "ERROR",
            "categoryLogLevel": {
                    "Authentication": "VERBOSE",
                    "Storage": "DEBUG"
            }
        }
    }
}
```

To disable logging for a specific category, set the log level to `NONE`.

  
  #### [With Code]
  <!-- Platform: android -->
Provide a map of category and corresponding log levels at initialization and configuration of the `AWSCloudWatchLoggingPlugin`.

#### [Java]

```java
Map<CategoryType, LogLevel> categoryOverrides = new HashMap<>();
categoryOverrides.put(CategoryType.AUTH, LogLevel.VERBOSE);
categoryOverrides.put(CategoryType.STORAGE, LogLevel.DEBUG);
LoggingConstraints loggingConstraints = new LoggingConstraints(LogLevel.WARN, categoryOverrides);
AWSCloudWatchLoggingPluginConfiguration config = new AWSCloudWatchLoggingPluginConfiguration (<log-group-name>, <region>, loggingConstraints);
Amplify.addPlugin(new AWSCloudWatchLoggingPlugin(config));
```

#### [Kotlin]

```kotlin
val categoryOverrides = mapOf<CategoryType, LogLevel>(CategoryType.AUTH to LogLevel.VERBOSE, CategoryType.STORAGE to LogLevel.DEBUG)
val loggingConstraints = LoggingConstraints(defaultLogLevel = LogLevel.WARN, categoryLogLevel = categoryOverrides)
val config = AWSCloudWatchLoggingPluginConfiguration(logGroupName = <log-group-name>, region = <region>, loggingConstraints = loggingConstraints)
Amplify.addPlugin(AWSCloudWatchLoggingPlugin(config))
```

#### [RxJava]

```java
Map<CategoryType, LogLevel> categoryOverrides = new HashMap<>();
categoryOverrides.put(CategoryType.AUTH, LogLevel.VERBOSE);
categoryOverrides.put(CategoryType.STORAGE, LogLevel.DEBUG);
LoggingConstraints loggingConstraints = new LoggingConstraints(LogLevel.WARN, categoryOverrides);
AWSCloudWatchLoggingPluginConfiguration config = new AWSCloudWatchLoggingPluginConfiguration (<log-group-name>,<region>, loggingConstraints);
Amplify.addPlugin(new AWSCloudWatchLoggingPlugin(config));
```

<!-- /Platform -->

  <!-- Platform: swift -->
Provide a dictionary of category and corresponding log levels at initialization and configuration of the `AWSCloudWatchLoggingPlugin`.

```swift
do {
    let categoryLogLevels: [String: LogLevel] = ["Authentication": .verbose, "Storage": .debug]
    let loggingConstraints = LoggingConstraints(defaultLogLevel: .warn, categoryLogLevel: categoryLogLevels)
    let loggingConfiguration = AWSCloudWatchLoggingPluginConfiguration(logGroupName: "<log-group-name>", region: "<region>", loggingConstraints: loggingConstraints)
    let loggingPlugin = AWSCloudWatchLoggingPlugin(loggingPluginConfiguration: loggingConfiguration)
    try Amplify.add(plugin: loggingPlugin)
} catch {
    assert(false, "Error initializing Amplify: \(error)")
}
```

To disable logging for a specific category, set the log level to `LogLevel.none`.
<!-- /Platform -->

  

<!-- Platform: android -->
The following are existing Amplify category names that are used by default by Amplify when automatically logging errors from the library.
* `ANALYTICS`
* `API`
* `AUTH`
* `DATASTORE`
* `HUB`
* `LOGGING`
* `NOTIFICATIONS`
* `PREDICTIONS`
* `STORAGE`
* `GEO`
<!-- /Platform -->

<!-- Platform: swift -->
The following are existing Amplify category names that are used by default by Amplify when automatically logging errors from the library.
* `Analytics`
* `API`
* `Authentication`
* `DataStore`
* `Geo`
* `Hub`
* `Logging`
* `Predictions`
* `PushNotifications`
* `Storage`
<!-- /Platform -->