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Azure Communication Services common utilities for Java. Use when working with CommunicationTokenCredential, user identifiers, token refresh, or shared authentication across ACS services.
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| name | azure-communication-common-java |
| description | Azure Communication Services common utilities for Java. Use when working with CommunicationTokenCredential, user identifiers, token refresh, or shared authentication across ACS services. |
| type | skill |
| created | 2026-02-27T00:00:00.000Z |
| domain | cloud-infrastructure |
| category | azure |
| risk | unknown |
| source | community |
| tags | ["skill","cloud-infrastructure","azure","communication","common"] |
Shared authentication utilities and data structures for Azure Communication Services.
<dependency>
<groupId>com.azure</groupId>
<artifactId>azure-communication-common</artifactId>
<version>1.4.0</version>
</dependency>
| Class | Purpose |
|---|---|
CommunicationTokenCredential | Authenticate users with ACS services |
CommunicationTokenRefreshOptions | Configure automatic token refresh |
CommunicationUserIdentifier | Identify ACS users |
PhoneNumberIdentifier | Identify PSTN phone numbers |
MicrosoftTeamsUserIdentifier | Identify Teams users |
UnknownIdentifier | Generic identifier for unknown types |
import com.azure.communication.common.CommunicationTokenCredential;
// Simple static token - no refresh
String userToken = "<user-access-token>";
CommunicationTokenCredential credential = new CommunicationTokenCredential(userToken);
// Use with Chat, Calling, etc.
ChatClient ()
.endpoint()
.credential(credential)
.buildClient();
import com.azure.communication.common.CommunicationTokenRefreshOptions;
import java.util.concurrent.Callable;
// Token refresher callback - called when token is about to expire
Callable<String> tokenRefresher = () -> {
// Call your server to get a fresh token
return fetchNewTokenFromServer();
};
// With proactive refresh
CommunicationTokenRefreshOptions refreshOptions = new CommunicationTokenRefreshOptions(tokenRefresher)
.setRefreshProactively(true) // Refresh before expiry
.setInitialToken(currentToken); // Optional initial token
CommunicationTokenCredential credential = new CommunicationTokenCredential(refreshOptions);
import java.util.concurrent.CompletableFuture;
// Async token fetcher
Callable<String> asyncRefresher = () -> {
CompletableFuture<String> future = fetchTokenAsync();
return future.get(); // Block until token is available
};
CommunicationTokenRefreshOptions options = new CommunicationTokenRefreshOptions(asyncRefresher)
.setRefreshProactively(true);
CommunicationTokenCredential credential = new CommunicationTokenCredential(options);
import com.azure.identity.InteractiveBrowserCredentialBuilder;
import com.azure.communication.common.EntraCommunicationTokenCredentialOptions;
import java.util.Arrays;
import java.util.List;
// For Teams Phone Extensibility
InteractiveBrowserCredential entraCredential = new InteractiveBrowserCredentialBuilder()
.clientId("<your-client-id>")
.tenantId("<your-tenant-id>")
.redirectUrl("<your-redirect-uri>")
.build();
String resourceEndpoint = "https://<resource>.communication.azure.com";
List<String> scopes = Arrays.asList(
"https://auth.msft.communication.azure.com/TeamsExtension.ManageCalls"
);
EntraCommunicationTokenCredentialOptions entraOptions =
new EntraCommunicationTokenCredentialOptions(entraCredential, resourceEndpoint)
.setScopes(scopes);
CommunicationTokenCredential credential = new CommunicationTokenCredential(entraOptions);
import com.azure.communication.common.CommunicationUserIdentifier;
// Create identifier for ACS user
CommunicationUserIdentifier user = new CommunicationUserIdentifier("8:acs:resource-id_user-id");
// Get raw ID
String rawId = user.getId();
import com.azure.communication.common.PhoneNumberIdentifier;
// E.164 format phone number
PhoneNumberIdentifier phone = new PhoneNumberIdentifier("+14255551234");
String phoneNumber = phone.getPhoneNumber(); // "+14255551234"
String rawId = phone.getRawId(); // "4:+14255551234"
import com.azure.communication.common.MicrosoftTeamsUserIdentifier;
// Teams user identifier
MicrosoftTeamsUserIdentifier teamsUser = new MicrosoftTeamsUserIdentifier("<teams-user-id>")
.setCloudEnvironment(CommunicationCloudEnvironment.PUBLIC);
// For anonymous Teams users
MicrosoftTeamsUserIdentifier anonymousTeamsUser = new MicrosoftTeamsUserIdentifier("<teams-user-id>")
.setAnonymous(true);
import com.azure.communication.common.UnknownIdentifier;
// For identifiers of unknown type
UnknownIdentifier unknown = new UnknownIdentifier("some-raw-id");
import com.azure.communication.common.CommunicationIdentifier;
import com.azure.communication.common.CommunicationIdentifierModel;
// Parse raw ID to appropriate type
public CommunicationIdentifier parseIdentifier(String rawId) {
if (rawId.startsWith("8:acs:")) {
return new CommunicationUserIdentifier(rawId);
} else if (rawId.startsWith("4:")) {
String phone = rawId.substring(2);
return new PhoneNumberIdentifier(phone);
} else if (rawId.startsWith("8:orgid:")) {
String teamsId = rawId.substring(8);
return new MicrosoftTeamsUserIdentifier(teamsId);
} else {
return new UnknownIdentifier(rawId);
}
}
import com.azure.communication.common.CommunicationIdentifier;
public void processIdentifier(CommunicationIdentifier identifier) {
if (identifier instanceof CommunicationUserIdentifier) {
CommunicationUserIdentifier user = (CommunicationUserIdentifier) identifier;
System.out.println("ACS User: " + user.getId());
} else if (identifier instanceof PhoneNumberIdentifier) {
PhoneNumberIdentifier phone = (PhoneNumberIdentifier) identifier;
System.out.println("Phone: " + phone.getPhoneNumber());
} else if (identifier instanceof MicrosoftTeamsUserIdentifier) {
MicrosoftTeamsUserIdentifier teams = (MicrosoftTeamsUserIdentifier) identifier;
System.out.println("Teams User: " + teams.getUserId());
System.out.println("Anonymous: " + teams.isAnonymous());
} else if (identifier instanceof UnknownIdentifier) {
UnknownIdentifier unknown = (UnknownIdentifier) identifier;
System.out.println("Unknown: " + unknown.getId());
}
}
import com.azure.core.credential.AccessToken;
// Get current token (for debugging/logging - don't expose!)
CommunicationTokenCredential credential = new CommunicationTokenCredential(token);
// Sync access
AccessToken accessToken = credential.getToken();
System.out.println("Token expires: " + accessToken.getExpiresAt());
// Async access
credential.getTokenAsync()
.subscribe(token -> {
System.out.println("Token: " + token.getToken().substring(0, 20) + "...");
System.out.println("Expires: " + token.getExpiresAt());
});
// Clean up when done
credential.close();
// Or use try-with-resources
try (CommunicationTokenCredential cred = new CommunicationTokenCredential(options)) {
// Use credential
chatClient.doSomething();
}
import com.azure.communication.common.CommunicationCloudEnvironment;
// Available environments
CommunicationCloudEnvironment publicCloud = CommunicationCloudEnvironment.PUBLIC;
CommunicationCloudEnvironment govCloud = CommunicationCloudEnvironment.GCCH;
CommunicationCloudEnvironment dodCloud = CommunicationCloudEnvironment.DOD;
// Set on Teams identifier
MicrosoftTeamsUserIdentifier teamsUser = new MicrosoftTeamsUserIdentifier("<user-id>")
.setCloudEnvironment(CommunicationCloudEnvironment.GCCH);
AZURE_COMMUNICATION_ENDPOINT=https://<resource>.communication.azure.com
AZURE_COMMUNICATION_USER_TOKEN=<user-access-token>
setRefreshProactively(true) for long-lived clients// Pattern: Create credential for Chat/Calling client
public ChatClient createChatClient(String token, String endpoint) {
CommunicationTokenRefreshOptions refreshOptions =
new CommunicationTokenRefreshOptions(this::refreshToken)
.setRefreshProactively(true)
.setInitialToken(token);
CommunicationTokenCredential credential =
new CommunicationTokenCredential(refreshOptions);
return new ChatClientBuilder()
.endpoint(endpoint)
.credential(credential)
.buildClient();
}
private String refreshToken() {
// Call your token endpoint
return tokenService.getNewToken();
}
This skill is applicable to execute the workflow or actions described in the overview.