Json.net global settings

by

So, this was added to Json.net 5.0 Release 5

JsonConvert.DefaultSettings = () => new JsonSerializerSettings
{
    DateTimeZoneHandling = DateTimeZoneHandling.Local
};

From the release notes:

Set once with JsonConvert.DefaultSettings in an application, the default settings will automatically be used by all calls to JsonConvert.SerializeObject/DeserializeObject, and JToken.ToObject/FromObject. Any user supplied settings to these calls will override the default settings.

Because there are cases where JSON should not be customized, e.g. a Facebook or Twitter library, by default JsonSerializer won’t use DefaultSettings, providing an opt-out for those frameworks or for places in your application that shouldn’t use default settings. To create a JsonSerializer that does use them there is a new JsonSerializer.CreateDefault() method.

Do note that when ASP.NET invokes Newtonsoft directly, e.g. in model binding or response formatting, it opts out of using these global default settings. To configure defaults used internally by ASP.NET see this answer by Andrei.

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