1# JSON Merge Patch 2 3The library supports JSON Merge Patch ([RFC 7386](https://tools.ietf.org/html/rfc7386)) as a patch format. 4The merge patch format is primarily intended for use with the HTTP PATCH method as a means of describing a set of modifications to a target resource's content. This function applies a merge patch to the current JSON value. 5 6Instead of using [JSON Pointer](json_pointer.md) to specify values to be manipulated, it describes the changes using a syntax that closely mimics the document being modified. 7 8??? example 9 10 The following code shows how a JSON Merge Patch is applied to a JSON document. 11 12 ```cpp 13 --8<-- "examples/merge_patch.cpp" 14 ``` 15 16 Output: 17 18 ```json 19 --8<-- "examples/merge_patch.output" 20 ``` 21