ModularWebTemplate/WebTemplate/ServerAspects/Json/JsonModule.cs

using System.Text.Json.Serialization;

namespace WebTemplate.ServerAspects.Json;

public class JsonModule : IAppConfigurationModule
{
    public void ConfigureServices(IServiceCollection services, IConfigurationRoot config)
    {
        services.ConfigureHttpJsonOptions(opts =>
        {
            // Convert enums as their string values instead of integer values
            var enumConverter = new JsonStringEnumConverter();
            opts.SerializerOptions.Converters.Add(enumConverter);
        });
    }

    public void ConfigureApplication(WebApplication app)
    {
    }
}