1. import json
  3. def paginate_json(json_data, page_size=10, default_value=None):
  4. """
  5. Paginates a JSON object and returns results with default values.
  7. Args:
  8. json_data (list): A list of JSON objects.
  9. page_size (int): The number of items per page (default: 10).
  10. default_value (any): The default value to use for missing keys (default: None).
  12. Returns:
  13. list: A list of dictionaries, each representing a page of results.
  14. """
  15. all_pages = []
  16. for i in range(0, len(json_data), page_size):
  17. page_data = json_data[i:i + page_size] # Slice the list for the current page
  18. paginated_page = []
  19. for item in page_data:
  20. # Handle missing keys by using the default value
  21. paginated_item = {k: item.get(k, default_value) for k in item}
  22. paginated_page.append(paginated_item)
  23. all_pages.append(paginated_page)
  24. return all_pages
  26. if __name__ == '__main__':
  27. # Example usage
  28. data = [
  29. {"id": 1, "name": "Alice"},
  30. {"id": 2, "name": "Bob", "age": 30},
  31. {"id": 3, "name": "Charlie"},
  32. {"id": 4, "age": 25},
  33. {"id": 5, "name": "Eve", "city": "New York"}
  34. ]
  36. # Paginate with page size 2 and default value "N/A"
  37. paginated_results = paginate_json(data, page_size=2, default_value="N/A")
  38. for page in paginated_results:
  39. print(page)

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