private static void WriteData(JsonTextWriter writer, FormsModel model) { writer .StartObject() .Property("p", model.IsPersistent, true) .Property("e", model.ExpireUtc, DateTimeOffset.MinValue) .StartArray("i"); foreach (var identity in model.Principal.Identities) { writer .StartObject() .Property("at", identity.AuthenticationType, null) .Property("nct", identity.NameClaimType, ClaimsIdentity.DefaultNameClaimType) .Property("rct", identity.RoleClaimType, ClaimsIdentity.DefaultRoleClaimType) .StartArray("c"); foreach (var claim in identity.Claims) { writer .StartObject() .Property("t", claim.Type, identity.NameClaimType) .Property("v", claim.Value, null) .EndObject(); } writer .EndArray() .EndObject(); } }