Function handleSpeech

src/speech.ts:32–276

(
  req: http.IncomingMessage,
  res: http.ServerResponse,
  raw: string,
  fixtures: Fixture[],
  journal: Journal,
  defaults: HandlerDefaults,
  setCorsHeaders: (res: http.ServerResponse) => void,
)

}

export async function handleSpeech(
  req: http.IncomingMessage,
  res: http.ServerResponse,
  raw: string,
  fixtures: Fixture[],
  journal: Journal,
  defaults: HandlerDefaults,
  setCorsHeaders: (res: http.ServerResponse) => void,
): Promise<void> {
  setCorsHeaders(res);
  const path = req.url ?? "/v1/audio/speech";
  const method = req.method ?? "POST";

  let speechReq: SpeechRequest;
  try {
    speechReq = JSON.parse(raw) as SpeechRequest;
  } catch (parseErr) {
    const detail = parseErr instanceof Error ? parseErr.message : "unknown";
    journal.add({
      method,
      path,
      headers: flattenHeaders(req.headers),
      body: null,
      response: { status: 400, fixture: null },
    });
    writeErrorResponse(
      res,
      400,
      JSON.stringify({
        error: {
          message: `Malformed JSON: ${detail}`,
          type: "invalid_request_error",
          code: "invalid_json",
        },
      }),
    );
    return;
  }

  if (!speechReq.input) {
    journal.add({
      method,
      path,
      headers: flattenHeaders(req.headers),
      body: null,
      response: { status: 400, fixture: null },
    });
    writeErrorResponse(
      res,
      400,
      JSON.stringify({
        error: { message: "Missing required parameter: 'input'", type: "invalid_request_error" },
      }),
    );
    return;
  }

  const syntheticReq: ChatCompletionRequest = {