how much camel caseing does CamelCasePropertyNamesContractResolver do?

Question

using JSON.Net like this:

JsonConvert.SerializeObject(someObject, 
                            Newtonsoft.Json.Formatting.None, 
                            new JsonSerializerSettings() {
                                NullValueHandling = NullValueHandling.Ignore,
                                ReferenceLoopHandling = ReferenceLoopHandling.Ignore,
                                ContractResolver = new CamelCasePropertyNamesContractResolver()
                            });

How much camel caseing does JSON.Net do?

Does it just lowercase letters starting at the beginning of the word?

Examples:

somePropertyId -> somePropertyId
somePropertyID -> somePropertyID
SOMEPropertyID -> somePropertyID
SOMEPROPERTYID -> somepropertyid

Why not try it and see? Should be pretty easy to make a quick throwaway console app to test this behavior. — Brian Rogers, May 09 '13 at 22:34

score 6 · Accepted Answer · answered May 09 '13 at 23:23

Here is what CamelCasePropertyNamesContractResolver does, direct from the unit tests: https://github.com/JamesNK/Newtonsoft.Json/blob/95665429a431364327b4bce5332c39fda7819e7b/Src/Newtonsoft.Json.Tests/Utilities/StringUtilsTests.cs#L40-L54

[Test]
public void ToCamelCaseTest()
{
  Assert.AreEqual("urlValue", StringUtils.ToCamelCase("URLValue"));
  Assert.AreEqual("url", StringUtils.ToCamelCase("URL"));
  Assert.AreEqual("id", StringUtils.ToCamelCase("ID"));
  Assert.AreEqual("i", StringUtils.ToCamelCase("I"));
  Assert.AreEqual("", StringUtils.ToCamelCase(""));
  Assert.AreEqual(null, StringUtils.ToCamelCase(null));
  Assert.AreEqual("iPhone", StringUtils.ToCamelCase("iPhone"));
  Assert.AreEqual("person", StringUtils.ToCamelCase("Person"));
  Assert.AreEqual("iPhone", StringUtils.ToCamelCase("IPhone"));
  Assert.AreEqual("i Phone", StringUtils.ToCamelCase("I Phone"));
  Assert.AreEqual(" IPhone", StringUtils.ToCamelCase(" IPhone"));
}

James - It's a shame thhis StringUtils class is marked internal. I'm using your library to create JSON and I then wanted an HTML helper to use the same camel case string function so that they would always match. However I can't do this as it's marked internal — Chris Nevill, Jun 16 '13 at 14:27

how much camel caseing does CamelCasePropertyNamesContractResolver do?

1 Answers1