Azure Communication Identity client library for Java - version 1.6.1

Artikel
10/27/2024

The identity package is used for managing users and tokens for Azure Communication Services.

Source code | Package (Maven) | API reference documentation | Product documentation

Getting started

Prerequisites

An Azure subscription. Create an account for free.
Java Development Kit (JDK) version 8 or above.
Apache Maven.
A Communication Services resource. You can use the Azure Portal or the Azure PowerShell to set it up.

Include the package

Include the BOM file

Please include the azure-sdk-bom to your project to take dependency on the General Availability (GA) version of the library. In the following snippet, replace the {bom_version_to_target} placeholder with the version number. To learn more about the BOM, see the AZURE SDK BOM README.

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>com.azure</groupId>
            <artifactId>azure-sdk-bom</artifactId>
            <version>{bom_version_to_target}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

and then include the direct dependency in the dependencies section without the version tag.

<dependencies>
  <dependency>
    <groupId>com.azure</groupId>
    <artifactId>azure-communication-identity</artifactId>
  </dependency>
</dependencies>

Include direct dependency

If you want to take dependency on a particular version of the library that is not present in the BOM, add the direct dependency to your project as follows.

<dependency>
  <groupId>com.azure</groupId>
  <artifactId>azure-communication-identity</artifactId>
  <version>1.6.1</version>
</dependency>

Authenticate the client

There are two forms of authentication to use the Identity SDK:

Azure Active Directory Token Authentication

A DefaultAzureCredential object must be passed to the CommunicationIdentityClientBuilder via the credential() function. Endpoint and httpClient must also be set via the endpoint() and httpClient() functions respectively.

AZURE_CLIENT_SECRET, AZURE_CLIENT_ID and AZURE_TENANT_ID environment variables are needed to create a DefaultAzureCredential object.

// You can find your endpoint and access key from your resource in the Azure Portal
String endpoint = "https://<RESOURCE_NAME>.communication.azure.com";

CommunicationIdentityClient communicationIdentityClient = new CommunicationIdentityClientBuilder()
    .endpoint(endpoint)
    .credential(new DefaultAzureCredentialBuilder().build())
    .buildClient();

AzureKeyCredential Authentication

Identity uses HMAC authentication with the resource access key. The access key can be used to create an AzureKeyCredential and provided to the CommunicationIdentityClientBuilder via the credential() function. Endpoint and httpClient must also be set via the endpoint() and httpClient() functions respectively.

// You can find your endpoint and access key from your resource in the Azure Portal
String endpoint = "https://<RESOURCE_NAME>.communication.azure.com";
AzureKeyCredential keyCredential = new AzureKeyCredential("<access-key>");

CommunicationIdentityClient communicationIdentityClient = new CommunicationIdentityClientBuilder()
    .endpoint(endpoint)
    .credential(keyCredential)
    .buildClient();

Connection String Authentication

Alternatively, you can provide the entire connection string using the connectionString() function instead of providing the endpoint and access key.

// You can find your connection string from your resource in the Azure Portal
String connectionString = "<connection_string>";

CommunicationIdentityClient communicationIdentityClient = new CommunicationIdentityClientBuilder()
    .connectionString(connectionString)
    .buildClient();

Key concepts

CommunicationIdentityClient and CommunicationIdentityAsyncClient provide the functionalities to manage users and user tokens.

Examples

Creating a new user

Use the createUser function to create a new user. user.getId() gets the unique ID of the user that was created.

CommunicationUserIdentifier user = communicationIdentityClient.createUser();
System.out.println("User id: " + user.getId());

Getting a token for an existing user

Use the getToken function to get a token for an existing user. The function also takes in a list of CommunicationTokenScope. Scope options include:

CHAT (Use this for full access to Chat APIs)
VOIP (Use this for full access to Calling APIs)
CHAT_JOIN (Access to Chat APIs but without the authorization to create, delete or update chat threads)
CHAT_JOIN_LIMITED (A more limited version of CHAT_JOIN that doesn't allow to add or remove participants)
VOIP_JOIN (Access to Calling APIs but without the authorization to start new calls)

 // Define a list of communication token scopes
List<CommunicationTokenScope> scopes = Arrays.asList(CommunicationTokenScope.CHAT);

AccessToken userToken = communicationIdentityClient.getToken(user, scopes);
System.out.println("User token value: " + userToken.getToken());
System.out.println("Expires at: " + userToken.getExpiresAt());

It's also possible to create a Communication Identity access token by customizing the expiration time. The token can be configured to expire in as little as one hour or as long as 24 hours. The default expiration time is 24 hours.

// Define a list of Communication Identity access token scopes
List<CommunicationTokenScope> scopes = Arrays.asList(CommunicationTokenScope.CHAT);
// Set custom validity period of the Communication Identity access token within [1,24]
// hours range. If not provided, the default value of 24 hours will be used.
Duration tokenExpiresIn = Duration.ofHours(1);
AccessToken userToken = communicationIdentityClient.getToken(user, scopes, tokenExpiresIn);
System.out.println("User token value: " + userToken.getToken());
System.out.println("Expires at: " + userToken.getExpiresAt());

Create a new user and token in a single request

For convenience, use createUserAndToken to create a new user and issue a token with one function call. This translates into a single web request as opposed to creating a user first and then issuing a token.

// Define a list of communication token scopes
List<CommunicationTokenScope> scopes = Arrays.asList(CommunicationTokenScope.CHAT);

CommunicationUserIdentifierAndToken result = communicationIdentityClient.createUserAndToken(scopes);
System.out.println("User id: " + result.getUser().getId());
System.out.println("User token value: " + result.getUserToken().getToken());

Here it's also possible to specify the expiration time for the Communication Identity access token. The token can be configured to expire in as little as one hour or as long as 24 hours. The default expiration time is 24 hours.

// Define a list of communication token scopes
List<CommunicationTokenScope> scopes = Arrays.asList(CommunicationTokenScope.CHAT);
// Set custom validity period of the Communication Identity access token within [1,24]
// hours range. If not provided, the default value of 24 hours will be used.
Duration tokenExpiresIn = Duration.ofHours(1);
CommunicationUserIdentifierAndToken result = communicationIdentityClient.createUserAndToken(scopes, tokenExpiresIn);
System.out.println("User id: " + result.getUser().getId());
System.out.println("User token value: " + result.getUserToken().getToken());

Revoking all tokens for an existing user

Use the revokeTokens function to revoke all the issued tokens of a user.

// revoke tokens issued for the specified user
communicationIdentityClient.revokeTokens(user);

Deleting a user

Use the deleteUser function to delete a user.

// delete a previously created user
communicationIdentityClient.deleteUser(user);

Exchanging Azure AD access token of a Teams User for a Communication Identity access token

Use the getTokenForTeamsUser function to exchange an Azure AD access token of a Teams User for a new Communication Identity access token.

String clientId = "<Client ID of an Azure AD application>";
String userObjectId = "<Object ID of an Azure AD user (Teams User)>";
GetTokenForTeamsUserOptions options = new GetTokenForTeamsUserOptions(teamsUserAadToken, clientId, userObjectId);
AccessToken accessToken = communicationIdentityClient.getTokenForTeamsUser(options);
System.out.println("User token value: " + accessToken.getToken());
System.out.println("Expires at: " + accessToken.getExpiresAt());

Troubleshooting

All user token service operations will throw an exception on failure.

try {
    CommunicationUserIdentifier user = communicationIdentityClient.createUser();
} catch (RuntimeException ex) {
    System.out.println(ex.getMessage());
}

Next steps

Please take a look at the samples directory for detailed examples of how to use this library to manage identities and tokens.

Contributing

This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution.

When you submit a pull request, a CLA-bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.

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