com.openai.unity 8.8.0

[StephenHodgson]

• Improved RealtimeSession websocket support for proxies
  • Proxy no longer handles the websocket connection directly, but instead initiates the connection to the OpenAI api directly using the ephemeral api key

[Copilot]

Pull Request Overview

Updates the Unity OpenAI package to v8.8.0 by enhancing RealtimeSession proxy support—sessions now use ephemeral API keys for direct WebSocket connections and URL utilities are refactored.

• Bumped package version to 8.8.0
• Added ClientSecret/ExpiresAfter support and JSON constructors in Realtime models
• Refactored endpoint URL construction and replaced proxy WebSocket initialization

Reviewed Changes

Copilot reviewed 13 out of 14 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
package.json	Version bumped to 8.8.0
Runtime/Realtime/SessionConfiguration.cs	Added expiresAfter, ClientSecret, JSON ctor and Ignore defaults
Runtime/Realtime/ServerVAD.cs	Made Type setter-private and added JSON ctor
Runtime/Realtime/SemanticVAD.cs	Made Type setter-private and added JSON ctor
Runtime/Realtime/RealtimeEndpoint.cs	Replaced CreateWebSocket usage with Rest POST + direct WebSocket init
Runtime/Realtime/ExpiresAfter.cs	New class for JSON expires_after and implicit int conversion
Runtime/Realtime/ClientSecret.cs	New class for handling ephemeral API keys
Runtime/OpenAIClient.cs	Removed old CreateWebSocket method
Runtime/Extensions/VoiceActivityDetectionSettingsConverter.cs	Added null-check in converter
Runtime/Common/OpenAIBaseEndpoint.cs	Removed IsWebSocketEndpoint; introduced GetWebsocketUri
Runtime/Authentication/OpenAISettingsInfo.cs	Simplified WebSocket URL format to always use WSS

Comments suppressed due to low confidence (3)

OpenAI/Packages/com.openai.unity/Runtime/Realtime/RealtimeEndpoint.cs:79

• The call to send the initial configuration (UpdateSessionRequest) after establishing the WebSocket connection was removed, which may prevent the session from being initialized correctly. Consider reinstating this SendAsync call to ensure the server receives the session parameters.

                session.Configuration = sessionResponse.SessionConfiguration;

OpenAI/Packages/com.openai.unity/Runtime/Authentication/OpenAISettingsInfo.cs:74

• Hardcoding the WebSocket URL to use the default OpenAI domain (OpenAIDomain) removes support for custom or self-hosted domains. To maintain flexibility, consider constructing BaseWebSocketUrlFormat from the provided domain parameter similar to BaseRequestUrlFormat.

            BaseWebSocketUrlFormat = $"{WSS}{OpenAIDomain}{BaseRequest}{{0}}";

OpenAI/Packages/com.openai.unity/Runtime/Realtime/RealtimeEndpoint.cs:44

• The new direct REST POST and WebSocket initialization flow isn't covered by existing tests. Adding unit or integration tests for the /sessions POST path and WebSocket connection logic will help prevent regressions.

            var payload = JsonConvert.SerializeObject(configuration, OpenAIClient.JsonSerializationOptions);