agologum/api/Program.cs

using Microsoft.AspNetCore.HttpOverrides;

using agologumApi.Stores;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddControllers();
builder.Services.AddSingleton<UserStore>();

// configuration for behind my nginx proxy
builder.Services.Configure<ForwardedHeadersOptions>(options =>
{
    options.ForwardedHeaders =
        ForwardedHeaders.XForwardedFor |
        ForwardedHeaders.XForwardedProto;

    options.KnownIPNetworks.Clear();
    options.KnownProxies.Clear();
});

// Add services to the container.
// Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
builder.Services.AddOpenApi();

builder.Services.AddCors(options =>
{
    options.AddPolicy("dev",
        policy =>
        {
            policy.AllowAnyOrigin()
                  .AllowAnyHeader()
                  .AllowAnyMethod();
        });
});

builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

var app = builder.Build();

app.UseForwardedHeaders();
app.UseCors("dev");

// Configure the HTTP request pipeline.
if (app.Environment.IsEnvironment("Development")) {
    app.MapOpenApi();
    app.UseSwagger();
    app.UseSwaggerUI();
} else {
    app.UseHttpsRedirection();
}

app.MapControllers();

app.Run();