Deserialization of appsettings.json via ConfigurationBuilder doesn't work

[gianni-imburse]

I have an appsettings.json file where a property is defined as "AccountType": "Default".
There's a related SmartEnum defined as public static readonly AccountType Default = new(nameof(Default), 1);.

Deserialization is done via the ConfigurationBuilder:

var config = new ConfigurationBuilder()
    .SetBasePath(Directory.GetCurrentDirectory())
    .AddJsonFile("appsettings.json")
    .AddJsonFile($"appsettings.{environmentName}.json", optional: true, reloadOnChange: true)
    .Build();

var options = config.Get<ConfigOptions>()
    ?? throw new ApplicationException("Configuration appsettings files not found");

The property is in a nested object and defined as:

[JsonConverter(typeof(SmartEnumNameConverter<AccountType, int>))]
public AccountType AccountType { get; set; }

I have tried deserializing with both name and value, but the property is always null.

I confirm that it works if it's manually deserialized

var configFile = File.ReadAllText(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) + "/appsettings.qa.json");
var jsonSerializerSettings = new JsonSerializerOptions()
{
    PropertyNameCaseInsensitive = true
};
jsonSerializerSettings.Converters.Add(new SmartEnumNameConverter<AccountType, int>());
jsonSerializerSettings.Converters.Add(new SmartEnumNameConverter<TenantType, int>());
jsonSerializerSettings.Converters.Add(new SmartEnumNameConverter<UserRoles, int>());
jsonSerializerSettings.Converters.Add(new JsonStringEnumConverter());
var options = JsonSerializer.Deserialize<ConfigOptions>(configFile, jsonSerializerSettings);

[laska-u]

Upvote this one. Currently struggling to bind SmartEnum using IOptions/IOptionsMonitor