chiabip158_compact_filter_creation_and_element_match_test.py

1import chiabip158
2
3# Create a list of items (as bytes) to be included in the filter
4elements = [b"element1", b"element2", b"element3"]
5
6# Create a filter from the elements
7# The constructor takes the list of elements as bytes
8filter = chiabip158.PyBIP158(elements)
9
10# Check if an element is in the filter (Match returns True or False)
11# Note: BIP 158 can have false positives but no false negatives
12match_found = filter.Match(b"element1")
13print(f"Match found for 'element1': {match_found}")
14
15match_not_found = filter.Match(b"element4")
16print(f"Match found for 'element4': {match_not_found}")
17
18# You can also get the encoded filter as bytes
19encoded_filter = filter.GetEncoded()
20print(f"Encoded filter length: {len(encoded_filter)} bytes")