Module Billing

Package : RVR.Framework.Billing

Description

Module de facturation SaaS avec gestion des plans, abonnements, quotas et usage metering.

Enregistrement

builder.Services.AddRvrBilling(options =>
{
    options.EnableUsageMetering = true;
    options.BillingCycleDay = 1; // Premier jour du mois
});

Plans et tarification

public class Plan
{
    public string Name { get; set; }       // "Starter", "Pro", "Enterprise"
    public decimal MonthlyPrice { get; set; }
    public Dictionary<string, int> Quotas { get; set; } // Feature -> Limit
}

Configuration des plans

{
  "Billing": {
    "Plans": [
      {
        "Name": "Starter",
        "MonthlyPrice": 29,
        "Quotas": { "users": 5, "storage_gb": 10, "api_calls": 10000 }
      },
      {
        "Name": "Pro",
        "MonthlyPrice": 99,
        "Quotas": { "users": 50, "storage_gb": 100, "api_calls": 100000 }
      },
      {
        "Name": "Enterprise",
        "MonthlyPrice": 299,
        "Quotas": { "users": -1, "storage_gb": -1, "api_calls": -1 }
      }
    ]
  }
}

Verification des quotas

public class QuotaCheckMiddleware
{
    public async Task InvokeAsync(HttpContext context, IBillingService billing)
    {
        var tenant = context.GetTenantId();
        var canProceed = await billing.CheckQuotaAsync(tenant, "api_calls");

        if (!canProceed)
        {
            context.Response.StatusCode = 429;
            await context.Response.WriteAsJsonAsync(new { error = "Quota exceeded" });
            return;
        }

        await _next(context);
    }
}

Usage Metering

await _billing.RecordUsageAsync(tenantId, "api_calls", quantity: 1);
await _billing.RecordUsageAsync(tenantId, "storage_gb", quantity: 0.5m);