Json.net rename properties

by

I would suggest reconstructing your JSON with renamed properties. I don’t think you should worry about speed penalties as it’s usually not an issue. Here’s how you can do it.

public static JToken Rename(JToken json, Dictionary<string, string> map)
{
    return Rename(json, name => map.ContainsKey(name) ? map[name] : name);
}

public static JToken Rename(JToken json, Func<string, string> map)
{
    JProperty prop = json as JProperty;
    if (prop != null) 
    {
        return new JProperty(map(prop.Name), Rename(prop.Value, map));
    }

    JArray arr = json as JArray;
    if (arr != null)
    {
        var cont = arr.Select(el => Rename(el, map));
        return new JArray(cont);
    }

    JObject o = json as JObject;
    if (o != null)
    {
        var cont = o.Properties().Select(el => Rename(el, map));
        return new JObject(cont);
    }

    return json;
}

And here’s an example of usage:

var s = @"{ ""A"": { ""B"": 1, ""Test"": ""123"", ""C"": { ""Test"": [ ""1"", ""2"", ""3"" ] } } }";
var json = JObject.Parse(s);

var renamed = Rename(json, name => name == "Test" ? "TestRenamed" : name);
renamed.ToString().Dump();  // LINQPad output

var dict = new Dictionary<string, string> { { "Test", "TestRenamed"} };
var renamedDict = Rename(json, dict);
renamedDict.ToString().Dump();  // LINQPad output

More Related Contents:

  1. How to deserialize an array of values with a fixed schema to a strongly typed data class?
  2. Detect if deserialized object is missing a field with the JsonConvert class in Json.NET
  3. Casting interfaces for deserialization in JSON.NET
  4. How to serialize/deserialize a custom collection with additional properties using Json.Net
  5. How to tell Json.Net globally to apply the StringEnumConverter to all enums
  6. Json.NET serialize object with root name
  7. Custom Deserialization using Json.NET
  8. How can I serialize/deserialize a dictionary with custom keys using Json.Net?
  9. JToken: Get raw/original JSON value
  10. How to call JsonConvert.DeserializeObject and disable a JsonConverter applied to a base type via [JsonConverter]?
  11. Send JSON via POST in C# and Receive the JSON returned?
  12. Cannot deserialize JSON array into type – Json.NET
  13. How to apply indenting serialization only to some properties?
  14. JSON.net (de)serialize untyped property
  15. Ignoring null fields in Json.net
  16. Deserialize json object with dynamic items in C#
  17. How can I merge two JObject? [duplicate]
  18. Json.NET adding backslash while returning json serialized string
  19. How do I get formatted and indented JSON in .NET using C#?
  20. Deserializing JSON into an object with Json.NET
  21. Newtonsoft JSON for .net is ignoring jsonproperty tags
  22. How to show the “paste Json class” in visual studio 2012 when clicking on Paste Special?
  23. dotnet core System.Text.Json unescape unicode string
  24. How can I encrypt selected properties when serializing my objects?
  25. Newtonsoft Json.Net serialize JObject doesn’t ignore nulls, even with the right settings
  26. Json.NET custom serialization with JsonConverter – how to get the “default” behavior
  27. Deserializing heterogenous JSON array into covariant List using Json.NET
  28. How to serialize or deserialize a JSON Object to a certain depth in C#?
  29. Ignore Base Class Properties in Json.NET Serialization
  30. Streaming large list of data as JSON format using Json.net

Leave a Comment