Function createTrackerCore

packages/client-sdk/src/tracker/core.ts:54–137

(options: TrackerCoreOptions)

 * Create a tracker core instance with batch support
 */
export function createTrackerCore(options: TrackerCoreOptions) {
  const {
    serverUrl,
    websiteId,
    batchDelay = 200,
    disableBatch = false,
  } = options;
  const endpoint = `${serverUrl}/api/website/send`;
  const batchEndpoint = `${serverUrl}/api/website/batch`;

  const sendSingle = async (
    type: 'event' | 'identify',
    payload: WebsiteEventPayload
  ): Promise<void> => {
    try {
      await fetch(endpoint, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ type, payload }),
      });
    } catch (e) {
      // Silent fail for tracking
    }
  };

  const sendBatch = async (items: BatchItem[]): Promise<void> => {
    try {
      await fetch(batchEndpoint, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ events: items }),
      });
    } catch (e) {
      // Silent fail for tracking
    }
  };

  const batchManager = new BatchManager<WebsiteEventPayload>({
    batchDelay,
    disableBatch,
    onBatchSend: sendBatch,
    onSingleSend: (item) =>
      sendSingle(item.type as 'event' | 'identify', item.payload),
  });

  const getPayload = (
    overrides?: Partial<WebsiteEventPayload>
  ): WebsiteEventPayload => ({
    website: websiteId,
    ...getBrowserInfo(),
    ...overrides,
  });

  return {
    track: (
      eventNameOrPayload?: string | WebsiteEventPayload,
      eventData?: Record<string, any>
    ) => {