GraphServiceClient token cache persistence and CAE control

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@ramsessanchez ci sta già lavorando.

Dal 18/5/2026.

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Descrizione

type:feature
Is your feature request related to a problem? Please describe the problem.

As outlined in this issue: https://github.com/Azure/azure-sdk-for-python/issues/42898

Given this example code:

token_cache_options = TokenCachePersistenceOptions(name="MyApp")

if Path("cred.json").exists():
    with open("cred.json", "r") as f:
        deserealized_record = AuthenticationRecord.deserialize(f.read())

    device_credential = DeviceCodeCredential(
        client_id=azure_settings["clientId"],
        tenant_id=azure_settings["tenantId"],
        authentication_record=deserealized_record,
        cache_persistence_options=token_cache_options,
        disable_automatic_authentication=True,
    )
else:
    device_credential = DeviceCodeCredential(
        client_id=azure_settings["clientId"],
        tenant_id=azure_settings["tenantId"],
        cache_persistence_options=token_cache_options,
        disable_automatic_authentication=True,
    )

    record = device_credential.authenticate(scopes=azure_settings["graphScope"])

    with open("cred.json", "w") as f:
        f.write(record.serialize())

app_client = GraphServiceClient(
    credentials=device_credential, scopes=azure_settings["graphScope"]
)

# do something with app_client, eg: `app_client.me.get()`

We will not be able to achieve token cache persistence, because by default, the AzureIdentityAuthenticationProvider used internally by the GraphServiceClient has it's CAE setting set to True while the DeviceCodeCredential.authenticate method defaults it to False. Setting the value in authenticate explicitly to True makes the code work:

record = device_credential.authenticate(scopes=azure_settings["graphScope"], enable_cae=True)

But this leaves one issue - if (for some reason) someone wants to set the above value to False, they will never be able to make the code work using the current implementation of the GraphServiceClient.

Describe the solution you'd like.

It is my suggestion to add an argument to the GraphServiceClient initializer method to allow controlling the is_cae_enabled parameter of the AzureIdentityAuthenticationProvider object created inside.

Additional context?

No response

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