BR.JCode.LogFlow.Owin 1.0.0-preview.2

<p align="center"> <img src="https://img.shields.io/badge/BR.JCode-LogFlow-blueviolet?style=for-the-badge&logo=dotnet&logoColor=white" alt="BR.JCode LogFlow" /> </p>

<h1 align="center">BR.JCode.LogFlow</h1>

<p align="center"> <strong>Dashboard de logs empresarial para .NET</strong><br/> Captura, persiste, alerta e exibe logs estruturados em tempo real.<br/> Zero alteracoes no codigo host. Plug & Play. </p>

<p align="center"> <a href="https://github.com/JCodeArch/LogFlow/actions"><img src="https://img.shields.io/github/actions/workflow/status/JCodeArch/LogFlow/dotnet.yml?branch=main&style=flat-square&logo=github&label=CI" alt="CI" /></a> <a href="https://www.nuget.org/packages/BR.JCode.LogFlow"><img src="https://img.shields.io/nuget/v/BR.JCode.LogFlow?style=flat-square&logo=nuget&label=NuGet&color=004880" alt="NuGet" /></a> <a href="https://www.nuget.org/packages/BR.JCode.LogFlow"><img src="https://img.shields.io/nuget/dt/BR.JCode.LogFlow?style=flat-square&logo=nuget&label=Downloads&color=green" alt="Downloads" /></a> <a href="https://github.com/JCodeArch/LogFlow/blob/main/LICENSE"><img src="https://img.shields.io/github/license/JCodeArch/LogFlow?style=flat-square&logo=opensourceinitiative&logoColor=white&label=Licen%C3%A7a" alt="License" /></a> <a href="https://github.com/JCodeArch/LogFlow"><img src="https://img.shields.io/github/stars/JCodeArch/LogFlow?style=flat-square&logo=github&label=Stars" alt="Stars" /></a> <a href="https://github.com/JCodeArch/LogFlow/issues"><img src="https://img.shields.io/github/issues/JCodeArch/LogFlow?style=flat-square&logo=github&label=Issues" alt="Issues" /></a> </p>

<p align="center"> <img src="https://img.shields.io/badge/.NET_Standard_2.0-512BD4?style=flat-square&logo=dotnet&logoColor=white" alt=".NET Standard 2.0" /> <img src="https://img.shields.io/badge/.NET_6.0-512BD4?style=flat-square&logo=dotnet&logoColor=white" alt=".NET 6.0" /> <img src="https://img.shields.io/badge/.NET_8.0_LTS-512BD4?style=flat-square&logo=dotnet&logoColor=white" alt=".NET 8.0" /> <img src="https://img.shields.io/badge/.NET_9.0-512BD4?style=flat-square&logo=dotnet&logoColor=white" alt=".NET 9.0" /> <img src="https://img.shields.io/badge/.NET_Framework_4.6.1+-512BD4?style=flat-square&logo=dotnet&logoColor=white" alt=".NET Framework" /> </p>

<p align="center"> <img src="https://img.shields.io/badge/SQLite-003B57?style=flat-square&logo=sqlite&logoColor=white" alt="SQLite" /> <img src="https://img.shields.io/badge/SQL_Server-CC2927?style=flat-square&logo=microsoftsqlserver&logoColor=white" alt="SQL Server" /> <img src="https://img.shields.io/badge/PostgreSQL-4169E1?style=flat-square&logo=postgresql&logoColor=white" alt="PostgreSQL" /> <img src="https://img.shields.io/badge/SSE_Realtime-FF6600?style=flat-square&logo=lightning&logoColor=white" alt="SSE" /> <img src="https://img.shields.io/badge/SMTP_Email-EA4335?style=flat-square&logo=gmail&logoColor=white" alt="Email" /> <img src="https://img.shields.io/badge/Microsoft_Teams-6264A7?style=flat-square&logo=microsoftteams&logoColor=white" alt="Teams" /> <img src="https://img.shields.io/badge/Webhook-181717?style=flat-square&logo=webhook&logoColor=white" alt="Webhook" /> </p>

---

Indice

• Sobre
• Funcionalidades
• Requisitos
• Instalacao
• Quick Start
• Configuracao Completa
• NET Framework OWIN
• Dashboard Web
• Sistema de Alertas
• Notificacoes
• Backup e Retencao
• Correlation ID
• Providers de Banco
• Worker Service / Console
• Arquitetura
• Contribuindo
• Licenca

---

🔎 Sobre

BR.JCode.LogFlow e uma biblioteca de logging empresarial para .NET que se integra nativamente ao ILogger<T>. Basta registrar o servico via DI e todos os logs da aplicacao sao capturados, persistidos em SQLite (ou SQL Server / PostgreSQL), exibidos em um dashboard web embarcado com streaming em tempo real via SSE, e opcionalmente disparam alertas por Email, Microsoft Teams ou Webhook.

Zero alteracoes no codigo host - se voce ja usa ILogger<T>, o BR.JCode.LogFlow captura tudo automaticamente.

---

✨ Funcionalidades

Recurso	Descricao
Dashboard Web Embarcado	Painel responsivo com graficos, filtros e tema dark/light
Streaming em Tempo Real	Server-Sent Events (SSE) para logs ao vivo
Alertas Inteligentes	Regras com threshold, janela temporal e cooldown
3 Canais de Notificacao	Email SMTP, Microsoft Teams (Adaptive Card), Webhook generico
Retry com Backoff	Tentativas automaticas com backoff exponencial (2s, 4s, 8s...)
Backup Automatico	Backups comprimidos com GZip (~90% compressao) e rotacao
Purge Automatico	Limpeza automatica de logs antigos por retencao
Correlation ID	Rastreamento de requests distribuidos
Multi-Usuario	Autenticacao com roles (Admin/Viewer) e sessoes seguras
Multi-Database	SQLite (builtin), SQL Server, PostgreSQL
Multi-Target	netstandard2.0, net6.0, net8.0, net9.0
Zero CDN	Dashboard 100% embarcado (HTML + Chart.js) - funciona offline

---

📋 Requisitos

Target Framework	Plataforma	Dashboard	Notificacoes
netstandard2.0	.NET Framework 4.6.1+, .NET Core 2.0+	OWIN Middleware (BR.JCode.LogFlow.Owin)	Email
net6.0	.NET 6	SSE + Dashboard completo	Email, Teams, Webhook
net8.0	.NET 8 LTS	SSE + Dashboard completo	Email, Teams, Webhook
net9.0	.NET 9	SSE + Dashboard completo	Email, Teams, Webhook

Nota: Para o dashboard no .NET Framework, utilize o pacote BR.JCode.LogFlow.Owin. Ele fornece o middleware OWIN compativel com WebAPI 2 e MVC 5.

---

📦 Instalacao

Pacote principal (SQLite incluso)

dotnet add package BR.JCode.LogFlow

Providers adicionais (opcional)

# SQL Server / Azure SQL
dotnet add package BR.JCode.LogFlow.SqlServer

# PostgreSQL
dotnet add package BR.JCode.LogFlow.PostgreSql

---

🚀 Quick Start

Adicione 2 linhas ao seu Program.cs:

using BR.JCode.LogFlow;

var builder = WebApplication.CreateBuilder(args);

// 1. Registrar o BR.JCode.LogFlow
builder.Services.AddLogFlow(opt =>
{
    opt.ApplicationName = "MinhaApp";
    opt.Environment     = builder.Environment.EnvironmentName;
});

var app = builder.Build();

// 2. Montar o dashboard
app.UseLogFlow();

app.Run();

Acesse http://localhost:5000/logs no navegador.

Login padrao: admin / logflow123

---

⚙️ Configuracao Completa

builder.Services.AddLogFlow(opt =>
{
    // --- Identidade ---
    // Nome da aplicacao exibido no dashboard e nas notificacoes de alerta
    opt.ApplicationName = "MeuServico";
    // Ambiente exibido como badge no dashboard (Development, Staging, Production)
    opt.Environment     = "Production";

    // --- Dashboard ---
    // Habilita ou desabilita o dashboard web embarcado
    opt.EnableDashboard = true;          // default: true
    // Caminho base do dashboard e de todas as rotas da API REST
    opt.DashboardPath   = "/logs";       // default: "/logs"
    // Titulo exibido na aba do browser e no cabecalho do dashboard
    opt.DashboardTitle  = "LogFlow";     // default: "LogFlow"
    // URL de um logotipo personalizado exibido no dashboard (null = logo padrao)
    opt.LogoUrl         = null;          // default: null

    // --- Storage ---
    // Caminho do arquivo SQLite. Omita para usar o caminho padrao do SO:
    // Windows: %ProgramData%\BR.JCode.LogFlow\logflow.db
    // Linux:   /var/lib/logflow/logflow.db
    opt.DatabasePath = "/var/data/logs.db";

    // --- Retencao ---
    // Habilita o purge automatico de logs antigos para controlar o tamanho do banco
    opt.PurgeEnabled       = true;   // default: true
    // Numero de dias para manter os logs antes de serem excluidos pelo purge
    opt.RetentionDays      = 30;     // default: 7
    // Intervalo em horas entre cada execucao do purge automatico
    opt.PurgeIntervalHours = 24;     // default: 24

    // --- Nivel Minimo ---
    // Somente logs com nivel >= MinimumLevel serao capturados e persistidos
    opt.MinimumLevel = LogLevel.Information;  // default: Trace

    // --- Categorias Excluidas ---
    // Categorias de logger que devem ser ignoradas (evita ruido de frameworks)
    opt.ExcludeCategories.Add("Microsoft.AspNetCore");
    opt.ExcludeCategories.Add("Microsoft.EntityFrameworkCore");

    // --- Pipeline Assincrono ---
    // Capacidade maxima do Channel<T> interno; logs excedentes sao descartados
    opt.ChannelCapacity   = 50_000;                         // default: 50000
    // Numero maximo de logs gravados por batch no SQLite
    opt.WriteBatchSize    = 50;                              // default: 50
    // Tempo maximo de espera antes de gravar um batch incompleto
    opt.WriteBatchTimeout = TimeSpan.FromMilliseconds(500); // default: 500ms

    // --- Correlation ID ---
    // Extrai o Correlation ID do header HTTP e associa a todos os logs do request
    opt.EnableCorrelationId = true;
    // Nome do header HTTP de onde o Correlation ID sera lido (ou gerado se ausente)
    opt.CorrelationIdHeader = "X-Correlation-Id";  // default

    // --- Backup ---
    // Habilita backups automaticos do banco SQLite comprimidos com GZip (~90%)
    opt.Backup.Enabled           = true;
    // Intervalo em horas entre cada backup automatico
    opt.Backup.IntervalHours     = 24;          // default: 24
    // Numero maximo de arquivos de backup mantidos (os mais antigos sao removidos)
    opt.Backup.MaxBackupCount    = 7;           // default: 7
    // Tamanho maximo do banco (em MB) que aciona um backup imediato
    opt.Backup.MaxDatabaseSizeMB = 5120;        // default: 5120 (5 GB)
    // Diretorio onde os backups serao armazenados
    opt.Backup.BackupDirectory   = "/var/backups/logflow";

    // --- Alertas: Email (SMTP) ---
    // Servidor SMTP para envio de alertas por e-mail
    opt.Alerts.Smtp.Host              = "smtp.office365.com";
    opt.Alerts.Smtp.Port              = 587;           // default: 587
    opt.Alerts.Smtp.EnableSsl         = true;          // default: true
    opt.Alerts.Smtp.Username          = "alerts@empresa.com.br";
    opt.Alerts.Smtp.Password          = Environment.GetEnvironmentVariable("SMTP_PASS")!;
    opt.Alerts.Smtp.FromAddress       = "logflow@empresa.com.br";
    opt.Alerts.Smtp.FromName          = "BR.JCode LogFlow";
    // Destinatarios padrao (separados por ; ou ,) — pode ser sobrescrito por regra
    opt.Alerts.Smtp.DefaultRecipients = "equipe@empresa.com.br;gestor@empresa.com.br";

    // --- Alertas: Microsoft Teams ---
    // URL do Incoming Webhook do canal Teams (requer .NET 6.0+)
    opt.Alerts.TeamsWebhookUrl = Environment.GetEnvironmentVariable("TEAMS_WEBHOOK");

    // --- Alertas: Webhook Generico (Slack, Discord, PagerDuty...) ---
    // URL do endpoint HTTP que recebera o payload JSON do alerta
    opt.Alerts.WebhookUrl = Environment.GetEnvironmentVariable("WEBHOOK_URL");
    // Headers HTTP adicionais enviados com o webhook (ex: autenticacao)
    opt.Alerts.WebhookHeaders["Authorization"] = "Bearer my-secret-token";

    // --- Retry com Backoff Exponencial ---
    // Numero de tentativas de reenvio em caso de falha (backoff: 2s, 4s, 8s...)
    opt.Alerts.RetryAttempts = 3;  // default: 3
});

var app = builder.Build();
app.UseLogFlow();
app.Run();

---

🖥️ .NET Framework / OWIN

Para projetos WebAPI 2 / MVC 5 / .NET Framework 4.6.1+, use o pacote OWIN dedicado.

1. Instalacao

dotnet add package BR.JCode.LogFlow
dotnet add package BR.JCode.LogFlow.Owin

Ou via Package Manager Console:

Install-Package BR.JCode.LogFlow
Install-Package BR.JCode.LogFlow.Owin

2. Registro dos servicos (Global.asax.cs ou container DI existente)

using BR.JCode.LogFlow;
using Microsoft.Extensions.DependencyInjection;

// Construa o container de DI
var services = new ServiceCollection();

services.AddLogFlow(opt =>
{
    opt.ApplicationName = "MinhaAppLegacy";
    opt.Environment     = "Production";

    // Caminho explicito do banco SQLite (opcional)
    opt.DatabasePath = @"C:\ProgramData\MinhaEmpresa\logs.db";

    // Retencao de logs
    opt.PurgeEnabled       = true;
    opt.RetentionDays      = 30;
    opt.PurgeIntervalHours = 24;

    // Nivel minimo capturado
    opt.MinimumLevel = Microsoft.Extensions.Logging.LogLevel.Information;

    // Alertas por Email (opcional)
    opt.Alerts.Smtp.Host              = "smtp.office365.com";
    opt.Alerts.Smtp.Port              = 587;
    opt.Alerts.Smtp.EnableSsl         = true;
    opt.Alerts.Smtp.Username          = "alerts@empresa.com.br";
    opt.Alerts.Smtp.Password          = System.Configuration.ConfigurationManager.AppSettings["SmtpPassword"];
    opt.Alerts.Smtp.FromAddress       = "logflow@empresa.com.br";
    opt.Alerts.Smtp.DefaultRecipients = "equipe@empresa.com.br";
});

var serviceProvider = services.BuildServiceProvider();

3. Registrar o ILoggerFactory no seu framework

Se voce usa WebAPI 2 com ILogger<T>:

// Obtem o factory do container e adiciona o provider LogFlow
var loggerFactory = serviceProvider.GetRequiredService<ILoggerFactory>();
// Todos os ILogger<T> da aplicacao agora enviam logs para o LogFlow

Se voce usa log4net, NLog ou outro framework legado, adapte um appender/sink que escreva para ILogger<T> ou use o pipeline diretamente.

4. Montar o dashboard OWIN (Startup.cs)

using BR.JCode.LogFlow.Owin;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Owin;

public class Startup
{
    public void Configuration(IAppBuilder app)
    {
        var options = serviceProvider.GetRequiredService<LogFlowOptions>(); // ou crie manualmente

        // Monta o dashboard em /logflow
        app.UseLogFlow(serviceProvider);
    }
}

5. Self-hosted (Console / Windows Service)

using BR.JCode.LogFlow.Owin;
using Microsoft.Owin.Hosting;

class Program
{
    static void Main()
    {
        // Registra servicos
        var services = new ServiceCollection();
        services.AddLogFlow(opt =>
        {
            opt.ApplicationName = "MinhaAppLegacy";
            opt.Environment     = "Production";
            opt.DatabasePath    = @"C:\ProgramData\MinhaEmpresa\logs.db";
            opt.RetentionDays   = 30;
        });
        var sp = services.BuildServiceProvider();

        // Inicia o servidor OWIN
        var startOptions = new StartOptions();
        startOptions.Urls.Add("http://localhost:9000");
        startOptions.Urls.Add("http://127.0.0.1:9000");

        using (WebApp.Start<Startup>(startOptions))
        {
            Console.WriteLine("Dashboard disponivel em http://localhost:9000/logflow");
            Console.WriteLine("Login: admin / logflow123");
            Console.ReadLine();
        }
    }
}

Nota: Registre http://localhost:9000 e http://127.0.0.1:9000 com o comando netsh se necessario:

netsh http add urlacl url=http://localhost:9000/ user=TODOS
netsh http add urlacl url=http://127.0.0.1:9000/ user=TODOS

Opcoes de configuracao completas para .NET Framework

Opcao	Tipo	Default	Descricao
ApplicationName	string	"App"	Nome exibido no dashboard e alertas
Environment	string	""	Badge de ambiente (Development / Staging / Production)
DatabasePath	string	%ProgramData%\BR.JCode.LogFlow\logflow.db	Caminho do arquivo SQLite
MinimumLevel	LogLevel	Trace	Nivel minimo para capturar logs
PurgeEnabled	bool	true	Ativa limpeza automatica de logs antigos
RetentionDays	int	7	Dias de retencao antes do purge
PurgeIntervalHours	int	24	Frequencia do purge em horas
DashboardTitle	string	"LogFlow"	Titulo exibido no browser
EnableDashboard	bool	true	Habilita o painel web
ChannelCapacity	int	50000	Capacidade maxima do buffer interno
Alerts.Smtp.*	—	—	Configuracao de email SMTP
Backup.Enabled	bool	true	Ativa backup automatico do SQLite
Backup.MaxBackupCount	int	7	Numero de backups retidos

---

🖥️ Dashboard Web

O dashboard e acessado em /logs (configuravel via DashboardPath).

Recursos do Dashboard

Funcionalidade	Descricao
Logs em Tempo Real	Stream SSE com atualizacao automatica
Filtros Avancados	Nivel, categoria, texto, periodo, Correlation ID
Graficos	Timeline de logs com Chart.js (dark/light mode)
Estatisticas	Contagem por nivel (Trace, Debug, Info, Warning, Error, Critical)
Alertas	CRUD completo de regras + teste de notificacao
Historico de Alertas	Registro de disparos com badges de status por canal
Gerenciamento de Usuarios	Criar, editar, excluir usuarios (Admin only)
Backup	Criar, listar, baixar e excluir backups
Configuracoes	Purge, armazenamento, informacoes do sistema
Tema Dark/Light	Alternancia de tema com persistencia
Badge de Ambiente	Indicador visual do ambiente (Dev/Staging/Production)
100% Embarcado	Nenhuma dependencia de CDN - funciona offline

Autenticacao

O sistema cria automaticamente um usuario admin padrao:

• Usuario: admin
• Senha: logflow123

Importante: Altere a senha padrao em producao via dashboard ou API.

Roles disponiveis:

Role	Permissoes
Admin	Acesso total: logs, alertas, usuarios, backups, configuracoes
Viewer	Somente leitura: logs, estatisticas, alertas (sem editar)

---

🚨 Sistema de Alertas

Crie regras de alerta diretamente pelo dashboard ou via API REST.

Anatomia de uma Regra

{
  "name": "Erros Criticos em Pagamento",
  "enabled": true,
  "level": "Error",
  "categoryContains": "PaymentService",
  "messageContains": "timeout",
  "thresholdCount": 5,
  "thresholdWindowMinutes": 10,
  "cooldownMinutes": 30,
  "notifyEmail": true,
  "notifyTeams": true,
  "notifyWebhook": false,
  "emailRecipients": "equipe-pagamento@empresa.com.br"
}

Como Funciona

Log capturado --> Matcher verifica regras ativas
                       |
                       v
                Threshold atingido? (N logs em X minutos)
                       |
                       v
                  Em cooldown? --> Sim: ignora
                       |
                      Nao
                       v
              Dispara notificacao(oes)
                 /     |     \
              Email  Teams  Webhook
                 \     |     /
              RetryDecorator (backoff exponencial)
                       |
                       v
              Registra no historico (sucesso/falha por canal)

---

📣 Notificacoes

Email (SMTP)

<img src="https://img.shields.io/badge/SMTP-Todos_os_frameworks-success?style=flat-square&logo=gmail&logoColor=white" alt="SMTP" />

opt.Alerts.Smtp.Host              = "smtp.office365.com";
opt.Alerts.Smtp.Port              = 587;
opt.Alerts.Smtp.EnableSsl         = true;
opt.Alerts.Smtp.Username          = "alerts@empresa.com.br";
opt.Alerts.Smtp.Password          = Environment.GetEnvironmentVariable("SMTP_PASS")!;
opt.Alerts.Smtp.FromAddress       = "logflow@empresa.com.br";
opt.Alerts.Smtp.DefaultRecipients = "equipe@empresa.com.br;gestor@empresa.com.br";

• Envia HTML formatado com detalhes do alerta
• Suporta multiplos destinatarios (separados por ; ou ,)
• Override por regra via emailRecipients

Microsoft Teams

<img src="https://img.shields.io/badge/Teams-net6.0+-6264A7?style=flat-square&logo=microsoftteams&logoColor=white" alt="Teams" />

opt.Alerts.TeamsWebhookUrl = "https://outlook.office.com/webhook/...";

• Envia Adaptive Card formatado
• Suporta URL override por regra
• Requer .NET 6.0+ (usa IHttpClientFactory)

Webhook Generico

<img src="https://img.shields.io/badge/Webhook-net6.0+-181717?style=flat-square&logo=webhook&logoColor=white" alt="Webhook" />

Compativel com Slack, Discord, PagerDuty, Opsgenie, ou qualquer endpoint HTTP.

opt.Alerts.WebhookUrl = "https://hooks.slack.com/services/...";
opt.Alerts.WebhookHeaders["Authorization"] = "Bearer meu-token";

Payload enviado (JSON):

{
  "ruleName": "Erros Criticos",
  "level": "Error",
  "message": "Database connection timeout after 30s",
  "category": "Services.PaymentService",
  "matchCount": 5,
  "firedAt": "2026-02-26T14:30:00Z",
  "applicationName": "MeuServico",
  "environment": "Production"
}

Retry com Backoff Exponencial

Todas as notificacoes sao envolvidas por um RetryNotifierDecorator:

Tentativa 1 --> Falhou --> Aguarda 2s
Tentativa 2 --> Falhou --> Aguarda 4s
Tentativa 3 --> Falhou --> Registra erro no historico

Configuravel via opt.Alerts.RetryAttempts (default: 3).

---

💾 Backup e Retencao

Backup Automatico

opt.Backup.Enabled          = true;
opt.Backup.IntervalHours    = 24;     // A cada 24h
opt.Backup.MaxBackupCount   = 7;      // Manter ultimos 7
opt.Backup.MaxDatabaseSizeMB = 5120;  // Limite de 5GB

• Backups sao comprimidos com GZip (~90% de compressao)
• Rotacao automatica (remove backups antigos)
• Criar/baixar/excluir backups manualmente pelo dashboard
• Usa SQLite backup API nativa + Pooling=false para evitar file locking

Purge Automatico

opt.PurgeEnabled       = true;  // Ativado por padrao
opt.RetentionDays      = 7;     // Manter 7 dias
opt.PurgeIntervalHours = 24;    // Executar a cada 24h

---

🔗 Correlation ID

Rastreie requests distribuidos automaticamente:

opt.EnableCorrelationId = true;
opt.CorrelationIdHeader = "X-Correlation-Id";  // Header HTTP

Quando habilitado:

1. O middleware extrai o header X-Correlation-Id de cada request
2. Gera um novo ID se nao existir
3. Todos os logs daquele request sao marcados com o mesmo Correlation ID
4. Filtre no dashboard por Correlation ID para rastrear um request end-to-end

---

🗄️ Providers de Banco

SQLite (Padrao)

<img src="https://img.shields.io/badge/SQLite-Incluso-003B57?style=flat-square&logo=sqlite&logoColor=white" alt="SQLite" />

Incluso no pacote principal. Sem configuracao adicional.

opt.DatabasePath = "logs/logflow.db";

SQL Server

<img src="https://img.shields.io/badge/SQL_Server-Addon-CC2927?style=flat-square&logo=microsoftsqlserver&logoColor=white" alt="SQL Server" />

dotnet add package BR.JCode.LogFlow.SqlServer

builder.Services.AddLogFlow(opt => { /* ... */ });
builder.Services.AddLogFlowSqlServer("Server=...;Database=LogFlow;...");

PostgreSQL

<img src="https://img.shields.io/badge/PostgreSQL-Addon-4169E1?style=flat-square&logo=postgresql&logoColor=white" alt="PostgreSQL" />

dotnet add package BR.JCode.LogFlow.PostgreSql

builder.Services.AddLogFlow(opt => { /* ... */ });
builder.Services.AddLogFlowPostgreSql("Host=...;Database=logflow;...");

---

🔧 Worker Service / Console

Para aplicacoes sem ASP.NET Core (Worker Services, Console Apps):

var host = Host.CreateDefaultBuilder(args)
    .ConfigureServices(services =>
    {
        services.AddLogFlow(opt =>
        {
            opt.EnableDashboard = false;  // Sem dashboard
            opt.ApplicationName = "WorkerService";
            opt.DatabasePath    = "logs/worker.db";
            opt.MinimumLevel    = LogLevel.Warning;

            opt.Alerts.Smtp.Host     = "smtp.empresa.com.br";
            opt.Alerts.Smtp.Username = "alerts@empresa.com.br";
            opt.Alerts.Smtp.Password = Environment.GetEnvironmentVariable("SMTP_PASS")!;
        });

        services.AddHostedService<MeuWorker>();
    })
    .Build();

await host.RunAsync();

Os logs sao persistidos no SQLite e podem ser visualizados conectando outra aplicacao ASP.NET Core ao mesmo banco.

---

🏗️ Arquitetura

BR.JCode.LogFlow/
|-- src/BR.JCode.LogFlow/
|   |-- Abstractions/          # Interfaces (ILogRepository, IAlertNotifier, etc.)
|   |-- Application/           # Logica de negocio (AlertEvaluator, LogFlowProcessor)
|   |-- Configuration/         # LogFlowOptions e DTOs de configuracao
|   |-- Dashboard/             # Middleware HTTP, Auth, Resources embarcados
|   |   |-- Auth/              # PasswordHasher, SessionManager, InputValidator
|   |   |-- Resources/         # dashboard.html, chart.min.js (embarcados)
|   |   +-- LogFlowMiddleware  # Roteamento de API e servico do dashboard
|   |-- Domain/                # Entidades (LogEntry, AlertRule, User)
|   |-- Infrastructure/        # Implementacoes concretas
|   |   |-- Logging/           # LogFlowProvider (ILoggerProvider)
|   |   |-- Notifications/     # Email, Teams, Webhook notifiers
|   |   |-- Pipeline/          # BoundedLogPipeline (Channel<T>)
|   |   +-- Storage/           # SQLite repositories
|   +-- ServiceCollectionExtensions.cs  # Registro DI
|
|-- tests/
|   |-- BR.JCode.LogFlow.UnitTests/
|   +-- BR.JCode.LogFlow.IntegrationTests/
|
|-- BR.JCode.LogFlow.SqlServer/    # Provider SQL Server
|-- BR.JCode.LogFlow.PostgreSql/   # Provider PostgreSQL
+-- BR.JCode.LogFlow.Example/      # Aplicacao de exemplo

Design Patterns Utilizados

Pattern	Uso
Repository	ILogRepository, IAlertRuleRepository, IUserRepository, etc.
Strategy	IAlertNotifier (Email, Teams, Webhook)
Decorator	RetryNotifierDecorator (retry com backoff)
Observer	ILogPipeline subscriptions para SSE
Builder	Fluent configuration via LogFlowOptions
Factory	SqliteConnectionFactory
Background Service	LogFlowProcessor (hosted service)
Bounded Channel	Pipeline async com Channel<T> e drop policy

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🤝 Contribuindo

1. Fork o repositorio
2. Crie uma branch (git checkout -b feature/minha-feature)
3. Commit suas alteracoes (git commit -m 'feat: minha nova feature')
4. Push para a branch (git push origin feature/minha-feature)
5. Abra um Pull Request

Convencoes

• Codigo em ingles, documentacao em portugues
• Seguir Clean Code / SOLID
• XML Summary em todos os metodos publicos/internos
• Testes unitarios e de integracao para novas funcionalidades
• TreatWarningsAsErrors ativado em todos os projetos

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📄 Licenca

<img src="https://img.shields.io/badge/MIT-Licen%C3%A7a-green?style=for-the-badge" alt="MIT License" />

Distribuido sob a licenca MIT. Veja LICENSE para mais detalhes.

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<p align="center"> Desenvolvido por <strong>Jonathas Souza</strong> - Gateway de Integracao<br/> <strong>BR.JCode</strong> </p>

<p align="center"> <a href="https://github.com/JCodeArch/LogFlow"><img src="https://img.shields.io/badge/GitHub-JCodeArch%2FLogFlow-181717?style=for-the-badge&logo=github" alt="GitHub" /></a> <a href="https://www.nuget.org/packages/BR.JCode.LogFlow"><img src="https://img.shields.io/badge/NuGet-BR.JCode.LogFlow-004880?style=for-the-badge&logo=nuget" alt="NuGet" /></a> </p>