Function probeRegion

src/config/detect-region.ts:10–40

(
  region: Region,
  apiKey: string,
  timeoutMs: number,
)

}

async function probeRegion(
  region: Region,
  apiKey: string,
  timeoutMs: number,
): Promise<boolean> {
  // MiniMax endpoints accept either Bearer or x-api-key auth — try both.
  // Some API key types only work with one style; trying both prevents false
  // negatives that would cause the wrong region to be selected, leading to
  // every subsequent request timing out or returning 401.
  const authHeaders: Record<string, string>[] = [
    { Authorization: `Bearer ${apiKey}` },
    { "x-api-key": apiKey },
  ];

  for (const authHeader of authHeaders) {
    try {
      const res = await fetch(quotaUrl(region), {
        headers: { ...authHeader, "Content-Type": "application/json" },
        signal: AbortSignal.timeout(timeoutMs),
      });
      if (!res.ok) continue;
      const data = (await res.json()) as {
        base_resp?: { status_code?: number };
      };
      if (data.base_resp?.status_code === 0) return true;
    } catch {
      // Try next auth style before giving up on this region
    }
  }
  return false;
}

export async function detectRegion(apiKey: string): Promise<Region> {
  process.stderr.write("Detecting region...");