Let's understand how to use a custom Comparator.Ī JSON object can be represented as a map with the string key and the value that is either an object or a primitive. Jackson also provides JsonNode.equals (comparator, JsonNode) to configure a custom Java C omparator object. It’s built on top of Jackson.Ĭompare Two JSON Objects with a Custom Comparator JsonNode.equals works quite well in most of the cases. It can compare two JSON objects and report differences. This means that it is possible to compare complete JSON trees for equality by comparing equality of root nodes. How to compare two JSON objects in Javaįrom the JavaDoc for JsonNode.equals: Equality for node objects is defined as full (deep) value equality. Or, if you were so inclined as to continue using this serialized JSON data in your program, you could write it to a native Python str object. Note that dump() takes two positional arguments: (1) the data object to be serialized, and (2) the file-like object to which the bytes will be written. JSON Diff sorts, formats, and compares two JSON documents to find the actual semantic differences instead of just the text ones. Normal text compare tools work well for finding the differences in JavaScript code, but JSON data can have many differences in the text that don't actually change the data. $ python compare.py Compare JSON result is: True JSON files a.json and b.json are loaded via load_json () function and structures passed into compare_json_data () for comparison. Big thanks owed to the team behind JSONLint. See the differences between the objects instead of just the new lines and mixed up properties. Validate, format, and compare two JSON documents. Compare two JSON objects and get differences Python
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