json_delta_diff_and_patch_quickstart.py

1import json_delta
2
3# Define two JSON-serializable structures
4left = {'foo': 'bar', 'baz': [1, 2, 3]}
5right = {'foo': 'quux', 'baz': [1, 3]}
6
7# Calculate the difference (diff) between them
8# diff() returns a list of modifications
9patch = json_delta.diff(left, right)
10
11# Display the patch
12print(f"Patch: {patch}")
13
14# Apply the patch to the original object to get the new object
15reconstructed_right = json_delta.patch(left, patch)
16
17# Verify the result
18print(f"Original: {left}")
19print(f"Target:   {right}")
20print(f"Patched:  {reconstructed_right}")
21assert reconstructed_right == right