JSON Patch built on the System.Text.Json namespace
$ dotnet add package JsonPatch.NetJsonPatch.Net implements JSON Patch, RFC 6902, a JSON document structure for expressing a sequence of operations to apply to another JSON document.
Deserialize and apply immediately:
var patch = JsonSerializer.Deserialize<JsonPatch>(patchString);
var doc = JsonNode.Parse(docString);
var result = patch.Apply(doc);
Or you can build a patch inline:
var patch = new JsonPatch(PatchOperation.Add("/foo/bar", "baz"),
PatchOperation.Test("/foo/biz", false));
There is also limited patch generation support:
// parse your data
var start = JsonNode.Parse("[{\"test\":\"test123\"},{\"test\":\"test321\"},{\"test\":[1,2,3]},{\"test\":[1,2,4]}]");
// or build it inline
var target = new JsonArray{
new JsonObject { ["test"] = "test123" },
new JsonObject { ["test"] = "test32132" },
new JsonObject { ["test1"] = "test321" },
new JsonObject { ["test"] = new JsonArray{ 1, 2, 3 } },
new JsonObject { ["test"] = new JsonArray{ 1, 2, 3 } },
}
var patch = start.CreatePatch(target);
/*
Result:
[
{"op":"replace","path":"/1/test","value":"test32132"},
{"op":"remove","path":"/2/test"},
{"op":"add","path":"/2/test1","value":"test321"},
{"op":"replace","path":"/3/test/2","value":3},
{"op":"add","path":"/4","value":{"test":[1,2,3]}}
]
*/