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Azure App Configuration SDK for Java. Centralized application configuration management with key-value settings, feature flags, and snapshots.
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| name | azure-appconfiguration-java |
| description | Azure App Configuration SDK for Java. Centralized application configuration management with key-value settings, feature flags, and snapshots. |
| type | skill |
| created | 2026-02-27T00:00:00.000Z |
| domain | cloud-infrastructure |
| category | azure |
| risk | unknown |
| source | community |
| tags | ["skill","cloud-infrastructure","azure","appconfiguration"] |
Client library for Azure App Configuration, a managed service for centralizing application configurations.
<dependency>
<groupId>com.azure</groupId>
<artifactId>azure-data-appconfiguration</artifactId>
<version>1.8.0</version>
</dependency>
Or use Azure SDK BOM:
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.azure</groupId>
<artifactId>azure-sdk-bom</artifactId>
<version>{bom_version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.azure
azure-data-appconfiguration
AZURE_APPCONFIG_CONNECTION_STRING=Endpoint=https://<store>.azconfig.io;Id=<id>;Secret=<secret>
AZURE_APPCONFIG_ENDPOINT=https://<store>.azconfig.io
import com.azure.data.appconfiguration.ConfigurationClient;
import com.azure.data.appconfiguration.ConfigurationClientBuilder;
ConfigurationClient configClient = new ConfigurationClientBuilder()
.connectionString(System.getenv("AZURE_APPCONFIG_CONNECTION_STRING"))
.buildClient();
import com.azure.data.appconfiguration.ConfigurationAsyncClient;
ConfigurationAsyncClient asyncClient = new ConfigurationClientBuilder()
.connectionString(connectionString)
.buildAsyncClient();
import com.azure.identity.DefaultAzureCredentialBuilder;
ConfigurationClient configClient = new ConfigurationClientBuilder()
.credential(new DefaultAzureCredentialBuilder().build())
.endpoint(System.getenv("AZURE_APPCONFIG_ENDPOINT"))
.buildClient();
| Concept | Description |
|---|---|
| Configuration Setting | Key-value pair with optional label |
| Label | Dimension for separating settings (e.g., environments) |
| Feature Flag | Special setting for feature management |
| Secret Reference | Setting pointing to Key Vault secret |
| Snapshot | Point-in-time immutable view of settings |
Creates only if setting doesn't exist:
import com.azure.data.appconfiguration.models.ConfigurationSetting;
ConfigurationSetting setting = configClient.addConfigurationSetting(
"app/database/connection",
"Production",
"Server=prod.db.com;Database=myapp"
);
Creates or overwrites:
ConfigurationSetting setting = configClient.setConfigurationSetting(
"app/cache/enabled",
"Production",
"true"
);
ConfigurationSetting setting = configClient.getConfigurationSetting(
"app/database/connection",
"Production"
);
System.out.println("Value: " + setting.getValue());
System.out.println("Content-Type: " + setting.getContentType());
System.out.println("Last Modified: " + setting.getLastModified());
import com.azure.core.http.rest.Response;
import com.azure.core.util.Context;
Response<ConfigurationSetting> response = configClient.getConfigurationSettingWithResponse(
setting, // Setting with ETag
null, // Accept datetime
true, // ifChanged - only fetch if modified
Context.NONE
);
if (response.getStatusCode() == 304) {
System.out.println("Setting not modified");
} else {
ConfigurationSetting updated = response.getValue();
}
ConfigurationSetting updated = configClient.setConfigurationSetting(
"app/cache/enabled",
"Production",
"false"
);
// Only update if ETag matches (no concurrent modifications)
Response<ConfigurationSetting> response = configClient.setConfigurationSettingWithResponse(
setting, // Setting with current ETag
true, // ifUnchanged
Context.NONE
);
ConfigurationSetting deleted = configClient.deleteConfigurationSetting(
"app/cache/enabled",
"Production"
);
Response<ConfigurationSetting> response = configClient.deleteConfigurationSettingWithResponse(
setting, // Setting with ETag
true, // ifUnchanged
Context.NONE
);
import com.azure.data.appconfiguration.models.SettingSelector;
import com.azure.core.http.rest.PagedIterable;
SettingSelector selector = new SettingSelector()
.setKeyFilter("app/*");
PagedIterable<ConfigurationSetting> settings = configClient.listConfigurationSettings(selector);
for (ConfigurationSetting s : settings) {
System.out.println(s.getKey() + " = " + s.getValue());
}
SettingSelector selector = new SettingSelector()
.setKeyFilter("*")
.setLabelFilter("Production");
PagedIterable<ConfigurationSetting> settings = configClient.listConfigurationSettings(selector);
SettingSelector selector = new SettingSelector()
.setKeyFilter("app/database/*,app/cache/*");
PagedIterable<ConfigurationSetting> settings = configClient.listConfigurationSettings(selector);
SettingSelector selector = new SettingSelector()
.setKeyFilter("app/database/connection");
PagedIterable<ConfigurationSetting> revisions = configClient.listRevisions(selector);
for (ConfigurationSetting revision : revisions) {
System.out.println("Value: " + revision.getValue() + ", Modified: " + revision.getLastModified());
}
import com.azure.data.appconfiguration.models.FeatureFlagConfigurationSetting;
import com.azure.data.appconfiguration.models.FeatureFlagFilter;
import java.util.Arrays;
FeatureFlagFilter percentageFilter = new FeatureFlagFilter("Microsoft.Percentage")
.addParameter("Value", 50);
FeatureFlagConfigurationSetting featureFlag = new FeatureFlagConfigurationSetting("beta-feature", true)
.setDescription("Beta feature rollout")
.setClientFilters(Arrays.asList(percentageFilter));
FeatureFlagConfigurationSetting created = (FeatureFlagConfigurationSetting)
configClient.addConfigurationSetting(featureFlag);
FeatureFlagConfigurationSetting flag = (FeatureFlagConfigurationSetting)
configClient.getConfigurationSetting(featureFlag);
System.out.println("Feature: " + flag.getFeatureId());
System.out.println("Enabled: " + flag.isEnabled());
System.out.println("Filters: " + flag.getClientFilters());
featureFlag.setEnabled(false);
FeatureFlagConfigurationSetting updated = (FeatureFlagConfigurationSetting)
configClient.setConfigurationSetting(featureFlag);
import com.azure.data.appconfiguration.models.SecretReferenceConfigurationSetting;
SecretReferenceConfigurationSetting secretRef = new SecretReferenceConfigurationSetting(
"app/secrets/api-key",
"https://myvault.vault.azure.net/secrets/api-key"
);
SecretReferenceConfigurationSetting created = (SecretReferenceConfigurationSetting)
configClient.addConfigurationSetting(secretRef);
SecretReferenceConfigurationSetting ref = (SecretReferenceConfigurationSetting)
configClient.getConfigurationSetting(secretRef);
System.out.println("Secret URI: " + ref.getSecretId());
ConfigurationSetting readOnly = configClient.setReadOnly(
"app/critical/setting",
"Production",
true
);
ConfigurationSetting writable = configClient.setReadOnly(
"app/critical/setting",
"Production",
false
);
import com.azure.data.appconfiguration.models.ConfigurationSnapshot;
import com.azure.data.appconfiguration.models.ConfigurationSettingsFilter;
import com.azure.core.util.polling.SyncPoller;
import com.azure.core.util.polling.PollOperationDetails;
List<ConfigurationSettingsFilter> filters = new ArrayList<>();
filters.add(new ConfigurationSettingsFilter("app/*"));
SyncPoller<PollOperationDetails, ConfigurationSnapshot> poller = configClient.beginCreateSnapshot(
"release-v1.0",
new ConfigurationSnapshot(filters),
Context.NONE
);
poller.setPollInterval(Duration.ofSeconds(10));
poller.waitForCompletion();
ConfigurationSnapshot snapshot = poller.getFinalResult();
System.out.println("Snapshot: " + snapshot.getName() + ", Status: " + snapshot.getStatus());
ConfigurationSnapshot snapshot = configClient.getSnapshot("release-v1.0");
System.out.println("Created: " + snapshot.getCreatedAt());
System.out.println("Items: " + snapshot.getItemCount());
PagedIterable<ConfigurationSetting> settings =
configClient.listConfigurationSettingsForSnapshot("release-v1.0");
for (ConfigurationSetting setting : settings) {
System.out.println(setting.getKey() + " = " + setting.getValue());
}
ConfigurationSnapshot archived = configClient.archiveSnapshot("release-v1.0");
System.out.println("Status: " + archived.getStatus()); // archived
ConfigurationSnapshot recovered = configClient.recoverSnapshot("release-v1.0");
System.out.println("Status: " + recovered.getStatus()); // ready
import com.azure.data.appconfiguration.models.SnapshotSelector;
SnapshotSelector selector = new SnapshotSelector().setNameFilter("release-*");
PagedIterable<ConfigurationSnapshot> snapshots = configClient.listSnapshots(selector);
for (ConfigurationSnapshot snap : snapshots) {
System.out.println(snap.getName() + " - " + snap.getStatus());
}
import com.azure.data.appconfiguration.models.SettingLabelSelector;
configClient.listLabels(new SettingLabelSelector().setNameFilter("*"))
.forEach(label -> System.out.println("Label: " + label.getName()));
ConfigurationAsyncClient asyncClient = new ConfigurationClientBuilder()
.connectionString(connectionString)
.buildAsyncClient();
// Async list with reactive streams
asyncClient.listConfigurationSettings(new SettingSelector().setLabelFilter("Production"))
.subscribe(
setting -> System.out.println(setting.getKey() + " = " + setting.getValue()),
error -> System.err.println("Error: " + error.getMessage()),
() -> System.out.println("Completed")
);
import com.azure.core.exception.HttpResponseException;
try {
configClient.getConfigurationSetting("nonexistent", null);
} catch (HttpResponseException e) {
if (e.getResponse().getStatusCode() == 404) {
System.err.println("Setting not found");
} else {
System.err.println("Error: " + e.getMessage());
}
}
This skill is applicable to execute the workflow or actions described in the overview.