Setting a boolean property from a 3rd party endpoint that returns a string - asp.net-core

Question

I am attempting to deserialize a json object using JsonConvert - the data is coming from a 3rd party API
return JsonConvert.DeserializeObject<UserRegistration>(content,
JsonSnakeCaseNameStrategySettings.Settings());
The UserRegistration class:
public class UserRegistration
{
public UserRegistrationData UserRegistration { get; set; }
}
public class UserRegistrationData
{
public int UserId { get; set; }
public string Email { get; set; }
public UserRegistrationCustomFields CustomFields { get; set; }
}
public class UserRegistrationCustomFields
{
private bool emailDelivery;
public string DeliveryTime { get; set; }
public bool EmailDelivery {
get
{
return emailDelivery;
}
set
{
emailDelivery = value.ToString() == "1";
}
}
public bool SmsDelivery { get; set; }
public string PhoneNumber { get; set; }
}
I've tried several ways, this is my current iteration. The goal is to have "EmailDelivery" be a boolean, the value from the API will always be "1" or "0". This throws a JsonReaderException: Could not convert string to boolean: 0. Path 'user_registration.custom_fields.email_delivery', line 1, position 208.

Answer 1

You need custom JsonConverter to modify the deserialize principle.
Change your model like below:
public class UserRegistrationCustomFields
{
public string DeliveryTime { get; set; }
public bool EmailDelivery{get;set;}
public bool SmsDelivery { get; set; }
public string PhoneNumber { get; set; }
}
Custom a JsonConverter:
public class JsonBooleanConverter : JsonConverter
{
public override bool CanWrite { get { return false; } }
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
throw new NotImplementedException();
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
var value = reader.Value.ToString().ToLower().Trim();
switch (value)
{
case "1": return true;
}
return false;
}
public override bool CanConvert(Type objectType)
{
if (objectType == typeof(Boolean))
{
return true;
}
return false;
}
}
How to use:
JsonConvert.DeserializeObject<UserRegistration>(json, new JsonBooleanConverter());