32 lines
601 B
Markdown
32 lines
601 B
Markdown
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# JSON Merge Patch
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The library supports **JSON Merge Patch** ([RFC 7386](https://tools.ietf.org/html/rfc7386)) as a patch format. Instead of using JSON Pointer (see above) to specify values to be manipulated, it describes the changes using a syntax that closely mimics the document being modified.
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```cpp
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// a JSON value
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json j_document = R"({
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"a": "b",
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"c": {
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"d": "e",
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"f": "g"
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}
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})"_json;
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// a patch
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json j_patch = R"({
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"a":"z",
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"c": {
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"f": null
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}
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})"_json;
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// apply the patch
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j_document.merge_patch(j_patch);
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// {
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// "a": "z",
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// "c": {
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// "d": "e"
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// }
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// }
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```
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