Function extractSearchParams

src/utils/queryKeys.ts:9–37

* Extracts only the essential search parameters from a payload for query key generation. * This creates a minimal, stable key that's cheap to hash. * Handles both dateRange (from useStacSearch state) and datetime (from API transformations). * Also includes pagination-specific parameters (token, p

(payload: SearchRequestPayload)

 * Also includes pagination-specific parameters (token, page, merge) that make requests unique.
 */
function extractSearchParams(payload: SearchRequestPayload): Record<string, unknown> {
  const params: Record<string, unknown> = {};

  // Only include defined search parameters
  if (payload.ids !== undefined) params.ids = payload.ids;
  if (payload.bbox !== undefined) params.bbox = payload.bbox;
  if (payload.collections !== undefined) params.collections = payload.collections;

  // Handle both dateRange (from hook state) and datetime (from API transformation)
  if (payload.datetime !== undefined) {
    params.datetime = payload.datetime;
  } else if (payload.dateRange !== undefined) {
    // Convert dateRange to datetime format for consistent keys
    const { from, to } = payload.dateRange;
    if (from || to) {
      params.datetime = `${from || '..'}/${to || '..'}`;
    }
  }

  if (payload.sortby !== undefined) params.sortby = payload.sortby;
  if (payload.limit !== undefined) params.limit = payload.limit;

  // Include pagination-specific parameters
  if (payload.token !== undefined) params.token = payload.token;
  if (payload.page !== undefined) params.page = payload.page;
  if (payload.merge !== undefined) params.merge = payload.merge;

  return params;
}

/**
 * Generates a query key for STAC collections requests.