JSON Patch

JSON Patch is a web standard format for describing changes in a JSON document. It is meant to be used together with HTTP Patch which allows for the modification of an existing HTTP resource. The JSON Patch media type is application/json-patch + json.

A JSON Patch document is structured as a JSON array of objects where each object contains one of the six JSON Patch operations: add, remove, replace, move, copy, and test. The syntax looks like this:

[
    { "op": "add", "path": "/myPath", "value": ["myValue"] }
]

The operations does as follows:

Add: add a value into an object or array.

Remove: remove a value from an object or array.

Replace: replaces a value. Logically identical to using remove and then add.

Copy: copy a value from one path to another by adding the value at a specified to another location.

Move: moves a value from one place to another by removing from one location and adding to another.

Test: tests for equality at a certain path for a certain value.