How to set custom JsonSerializerSettings for Json NET in ASP NET Web API

Question

I understand that ASP NET Web API natively uses Json NET for  de serializing objects  but is there a way to specify a JsonSerializerSettings object that you want for it to use    For example  what if I wanted to include type information into the serialized JSON string  Normally I d inject settings into the  Serialize   call  but Web API does that silently  I can t find a way to inject settings manually

User · Answer

Answer is adding this 2 lines of code to Global.asax.cs Application_Start method

var json = GlobalConfiguration.Configuration.Formatters.JsonFormatter;
json.SerializerSettings.PreserveReferencesHandling = 
    Newtonsoft.Json.PreserveReferencesHandling.All;

Reference: Handling Circular Object References

User · Answer

You can customize the JsonSerializerSettings by using the Formatters JsonFormatter SerializerSettings property in the HttpConfiguration object   For example  you could do that in the Application Start   method   protected void Application Start         HttpConfiguration config   GlobalConfiguration Configuration      config Formatters JsonFormatter SerializerSettings Formatting           Newtonsoft Json Formatting Indented

User · Answer

You can specify JsonSerializerSettings for each JsonConvert  and you can set a global default   Single JsonConvert with an overload      Option  1  JsonSerializerSettings config   new JsonSerializerSettings   ReferenceLoopHandling   Newtonsoft Json ReferenceLoopHandling Ignore    this json   JsonConvert SerializeObject YourObject  Formatting Indented  config       Option  2  inline   JsonConvert SerializeObject YourObject  Formatting Indented      new JsonSerializerSettings             ReferenceLoopHandling   Newtonsoft Json ReferenceLoopHandling Ignore            Global Setting with code in Application Start   in Global asax cs   JsonConvert DefaultSettings        gt  new JsonSerializerSettings        Formatting   Newtonsoft Json Formatting Indented       ReferenceLoopHandling   Newtonsoft Json ReferenceLoopHandling Ignore      Reference  https   github com JamesNK Newtonsoft Json issues 78

[c#] How to set custom JsonSerializerSettings for Json.NET in ASP.NET Web API?

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