Program.cs

using System.Text.Json;

var builder = WebApplication.CreateBuilder(args);

builder.Logging.ClearProviders();
builder.Logging.AddConsole();

// Add services to the container.

builder.Services.AddControllers()
    .AddJsonOptions(options =>
    {
        options.JsonSerializerOptions.PropertyNamingPolicy = JsonNamingPolicy.CamelCase;
    });
builder.Services.ConfigureHttpJsonOptions(options => options.SerializerOptions.PropertyNamingPolicy = JsonNamingPolicy.CamelCase);
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();

// Configure swagger to use strings for enums
builder.Services.AddSwaggerGen(config => { config.UseInlineDefinitionsForEnums(); });
builder.Services.Configure<Microsoft.AspNetCore.Http.Json.JsonOptions>(options =>
{
    options.SerializerOptions.Converters.Add(new System.Text.Json.Serialization.JsonStringEnumConverter());
    options.SerializerOptions.PropertyNamingPolicy = JsonNamingPolicy.CamelCase;
});
builder.Services.Configure<Microsoft.AspNetCore.Mvc.JsonOptions>(options =>
{
    options.JsonSerializerOptions.Converters.Add(new System.Text.Json.Serialization.JsonStringEnumConverter());
    options.JsonSerializerOptions.PropertyNamingPolicy = JsonNamingPolicy.CamelCase;
});

var app = builder.Build();

// Configure the HTTP request pipeline.
// if (app.Environment.IsDevelopment())
// {
    app.UseSwagger();
    app.UseSwaggerUI();
// }


// app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.Run();