Function normalizePathLabel

src/metrics.ts:245–309

(pathname: string)

 * Replaces dynamic segments (model IDs, deployment names, etc.) with placeholders.
 */
export function normalizePathLabel(pathname: string): string {
  // Bedrock: /model/{modelId}/{operation}
  const bedrockMatch = pathname.match(BEDROCK_RE);
  if (bedrockMatch) {
    return `/model/{modelId}/${bedrockMatch[2]}`;
  }

  // Gemini: /v1beta/models/{model}:{action}
  const geminiMatch = pathname.match(GEMINI_RE);
  if (geminiMatch) {
    return `/v1beta/models/{model}:${geminiMatch[2]}`;
  }

  // Azure: /openai/deployments/{id}/{operation}
  const azureMatch = pathname.match(AZURE_RE);
  if (azureMatch) {
    return `/openai/deployments/{id}/${azureMatch[2]}`;
  }

  // Vertex AI: /v1/projects/{p}/locations/{l}/publishers/google/models/{m}:{action}
  const vertexMatch = pathname.match(VERTEX_RE);
  if (vertexMatch) {
    return `/v1/projects/{p}/locations/{l}/publishers/google/models/{m}:${vertexMatch[4]}`;
  }

  // ElevenLabs TTS: /v1/text-to-speech/{voice_id}
  if (ELEVENLABS_TTS_RE.test(pathname)) {
    return "/v1/text-to-speech/{voice_id}";
  }

  // OpenRouter video: /api/v1/videos/{jobId}[/content] — jobIds are random
  // UUIDs, so raw paths would mint unbounded label cardinality. The static
  // /api/v1/videos/models listing route must not collapse into {jobId}.
  if (OPENROUTER_VIDEO_CONTENT_RE.test(pathname)) {
    return "/api/v1/videos/{jobId}/content";
  }
  if (pathname !== "/api/v1/videos/models" && OPENROUTER_VIDEO_STATUS_RE.test(pathname)) {
    return "/api/v1/videos/{jobId}";
  }

  // Google Veo video: submit `:predictLongRunning` + poll `/v1beta/operations/{name}`.
  // Operation names are random UUIDs, so the raw path would mint unbounded
  // label cardinality.
  if (VEO_PREDICT_LRO_RE.test(pathname)) {
    return "/v1beta/models/{model}:predictLongRunning";
  }
  if (VEO_OPERATION_RE.test(pathname)) {
    return "/v1beta/operations/{name}";
  }

  // xAI Grok Imagine submit is a static literal path — keep it distinct from
  // the `/v1/videos/{id}` status label below (which it would otherwise collapse
  // into), exactly as `/api/v1/videos/models` is kept out of the jobId bucket.
  if (pathname === GROK_VIDEO_SUBMIT_PATH) {
    return GROK_VIDEO_SUBMIT_PATH;
  }

  // OpenAI/Grok video status: /v1/videos/{id}