How to use default Newtonsoft.Json in Asp.net Core Web Api?

Question

I am new to ASP.Net Web Api Core . I have been using ASP.Net MVC for the past few years, and I have always written ActionFilter and used JSON.Net for Serializing data in JSON . So I replaced Microsoft's JavaScript Serializer (which is slower than JSON.Net ) with JSON.Net (allegedly 400% faster).

How to do all this in ASP.Net Web Api Core ? Where to change the default formattor ?

Note. Please feel free to ask if you have any questions.

thanks

Answer 1

ASP.NET Core already uses JSON.NET, as JavaScriptSerializer not implemented / ported to .NET Core.

Microsoft.AspNetCore.Mvc depends on Microsoft.AspNetCore.Formatter.Json which depends on Microsoft.AspNetCore.JsonPatch , which depends on Newtonsoft.Json (see Source ).

Refresh

This is true only for ASP.NET Core 1.0 through 2.2. ASP.NET Core 3.0 eliminates JSON.NET dependency and uses its own JSON serializer.

Answer 2

Here is the code snippet for setting the parameters of the main .net application

 public void ConfigureServices(IServiceCollection services) { services .AddMvc() .AddJsonOptions(options => { // send back a ISO date var settings = options.SerializerSettings; settings.DateFormatHandling = Newtonsoft.Json.DateFormatHandling.IsoDateFormat; // dont mess with case of properties var resolver = options.SerializerSettings.ContractResolver as DefaultContractResolver; resolver.NamingStrategy = null; }); }