Function normalizeCompatPath

src/server.ts:159–177

* Normalize OpenAI-compatible paths with arbitrary prefixes. * Strips /openai/ prefix and rewrites paths ending in known suffixes to /v1/ . * Skips /v1/ (already standard) and /v2/ (Cohere convention).

(pathname: string, logger?: Logger)

 * Skips /v1/ (already standard) and /v2/ (Cohere convention).
 */
function normalizeCompatPath(pathname: string, logger?: Logger): string {
  // Strip /openai/ prefix (Groq/OpenAI-compat alias)
  if (pathname.startsWith("/openai/")) {
    pathname = pathname.slice("/openai".length);
  }

  // Normalize arbitrary prefixes to /v1/
  if (!pathname.startsWith("/v1/") && !pathname.startsWith("/v2/")) {
    for (const suffix of COMPAT_SUFFIXES) {
      if (pathname.endsWith(suffix)) {
        if (logger) logger.debug(`Path normalized: ${pathname} → /v1${suffix}`);
        pathname = "/v1" + suffix;
        break;
      }
    }
  }

  return pathname;
}

const GEMINI_INTERACTIONS_PATH = "/v1beta/interactions";
const GEMINI_PATH_RE = /^\/v1beta\/models\/([^:]+):(generateContent|streamGenerateContent)$/;