Function streamCompletion

streamCompletion(
    cfg: OpenRouterConfig,
    model: string,
    messages: ChatMessage[],
    tools: OpenAITool[],
    onText: (delta: string) => void | Promise<void>,
    signal?: AbortSignal,
): Promise<ChatMessage>
One streamed chat completion. Forwards assistant text deltas to onText as they arrive and returns the FINAL assistant message (with any accumulated tool_calls). Throws on a non-2xx (the loop reports it to the client).
Parameters
- cfg: OpenRouterConfig
- model: string
- messages: ChatMessage[]
- tools: OpenAITool[]
- onText: (delta: string) => void | Promise<void>
- Optionalsignal: AbortSignal
Returns Promise<ChatMessage>
- Defined in chat/src/openrouter.ts:39