Expose UsePath in the CamundaCloudClientBuilder for persisted token storage.

[ShawnAbshire]

Is your feature request related to a problem? Please describe.
Hello, recently started setting up lower test environments that point to a cloud instance of camunda 8 and ran into an issue where the library is attempting to persist tokens to disk for caching (.zeebe); however, this directory is read only in our environment and due to restrictions beyond my control I am unable to make it not read only; however, we do have a location that we would be able to write to.

I see there is a UsePath method on the ICamundaCloudTokenProviderBuilderFinalStep that isn't exposed via the ICamundaCloudClientBuilder and I don't see any other way of configuring the CamundaCloudTokenProviderBuilder.

Describe the solution you'd like
I would like to expose the UsePath on the the ICamundaCloudClientBuilder so we can properly configure where we'd like to persist our token cache.

Describe alternatives you've considered
Only alternative as of right now is to downgrade to before this change was implemented.

Additional context
No additional context.

[ShawnAbshire]

Seeing a couple issues that stem from this configuration. Is there a way we can expedite patching this issue?

I assumed we could downgrade versions but having just looked through the history it seems even this isn't possible as it's always cached the tokens on disk.

[ChrisKujawa]

@ShawnAbshire have you tried to directly use the CamundaCloudTokenProviderBuilder() with the path? Like this https://github.com/camunda-community-hub/zeebe-client-csharp/blob/main/Client.IntegrationTests/ZeebeIntegrationTestHelper.cs#L240-L250

[ShawnAbshire]

I have not, but looking into the builders I'm not seeing how this circumnavigates where the tokens are being saved to. I don't see any steps to configure the path.

[ChrisKujawa]

You can use UsePath not? https://github.com/camunda-community-hub/zeebe-client-csharp/blob/main/Client/Impl/Builder/CamundaCloudTokenProviderBuilder.cs#L78

The same you do in your PR? 🤔 https://github.com/camunda-community-hub/zeebe-client-csharp/pull/638/files

Example:

return ZeebeClient.Builder()
                .UseLoggerFactory(loggerFactory)
                .UseGatewayAddress(host)
                .UseTransportEncryption()
                .AllowUntrustedCertificates()
                .UseAccessTokenSupplier(
                    new CamundaCloudTokenProviderBuilder()
                        .UseAuthServer($"http://{keycloakContainer.Hostname}:{keycloakContainer.GetMappedPublicPort(KeycloakPort)}/auth/realms/camunda-platform/protocol/openid-connect/token")
                        .UseClientId("zeebe")
                        .UseClientSecret("sddh123865WUS)(1%!")
                        .UseAudience(audience)
                        .UsePath("/tmp/")  // <===== THIS
                        .Build())
                  .Build();

[ShawnAbshire]

ah I see, sorry I had downgraded my package to 2.2.0 and so when inspecting didn't see the updated interface. Will attempt this solution.

[ShawnAbshire]

This moves me forward, appreciate your response!

I still think it'd be nice to have the option on the cloud builder, but feel free to close if you think otherwise!