Gemini's openai-compatible API doesn't return toplevel id

[yoohaemin]

I tried Gemini's "openai-compatible" endpoint, and turns out they don't return id.

POST https://generativelanguage.googleapis.com/v1beta/openai/chat/completions

Example response

{
  "choices": [
    {
      "finish_reason": "stop",
      "index": 0,
      "message": {
        "content": "OK. I can book a flight from London to Tokyo for Jane Doe, age 34. Shall I proceed?",
        "role": "assistant"
      }
    }
  ],
  "created": 1747469284,
  "model": "models/gemini-2.5-flash-preview-04-17",
  "object": "chat.completion",
  "usage": {
    "completion_tokens": 24,
    "prompt_tokens": 138,
    "total_tokens": 448
  }
}

https://github.com/softwaremill/sttp-openai/blob/master/core/src/main/scala/sttp/openai/requests/completions/chat/ChatRequestResponseData.scala#L162

I wonder if the maintainers are open to make this field optional?

[adamw]

Sure - can you maybe create a PR?