public void ConfigureServices(IServiceCollection services) { ConfigureSettings(services); var jsonOptions = JsonSerializerExtensions.GetDefaultJsonSerializerSettings(); services.ConfigureHealthChecks(Configuration); services.AddControllers() .AddNewtonsoftJson(options => { options.SerializerSettings.DateFormatString = jsonOptions.DateFormatString; options.SerializerSettings.NullValueHandling = jsonOptions.NullValueHandling; options.SerializerSettings.ContractResolver = jsonOptions.ContractResolver; options.SerializerSettings.Converters.Add(new StringEnumConverter()); }); ConfigureDatabases(services); services.ConfigureSwaggerSettings(Configuration); services.ConfigureSwaggerInfo(); }