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blewave-auth-middleware

v1.3.2

Published

Middleware de autenticação para o sistema de autenticação do Blewave

Downloads

22

Readme

🔐 Auth Middleware – Middleware de Autenticação JWT

Este projeto fornece um middleware de autenticação reutilizável para projetos Node.js que utilizam JWT (JSON Web Token) emitido por uma API de login centralizada.

Ideal para projetos distribuídos (como microserviços ou múltiplas APIs independentes) que compartilham autenticação por token.


📦 Instalação

✅ Com pacote privado no GitLab

  1. Gere um token de acesso pessoal ou deploy token com os escopos:

    • read_api
    • read_package_registry
    • write_package_registry (se for publicar)
  2. Adicione ao seu projeto um arquivo .npmrc:

@blewave:registry=https://gitlab.com/api/v4/projects/ID_DO_PROJETO/packages/npm/
//gitlab.com/api/v4/projects/ID_DO_PROJETO/packages/npm/:_authToken=SEU_TOKEN_AQUI
  1. Instale o pacote:
npm install @blewave/auth-middleware

🧩 Uso básico

const authenticateToken = require('@blewave/auth-middleware');

app.get('/rota-protegida', authenticateToken, (req, res) => {
  res.json({ user: req.user });
});

O middleware irá:

  1. Ler o token de Authorization: Bearer <token>
  2. Verificar e decodificar o JWT usando JWT_SECRET
  3. Preencher req.user com os dados contidos no token

🧾 Payload esperado no JWT

{
  "sub": "user-id",
  "email": "[email protected]",
  "plan": "pro",
  "subscription_status": "active",
  "scope": "read:profile",
  "aud": "app1",
  "iss": "https://login.seudominio.com",
  "iat": 1693580000,
  "exp": 1693583600
}

Campos como features, userConsumerAppStatus, name também são aceitos se presentes.


⚙️ Configuração esperada

No .env do projeto consumidor:

JWT_SECRET=sua_chave_secreta_ou_publica

Para algoritmos assimétricos (RS256), use JWT_PUBLIC_KEY.


🔐 Exemplo de verificação por plano

app.get('/admin-only', authenticateToken, (req, res) => {
  if (req.user.plan !== 'enterprise') {
    return res.status(403).json({ error: 'Acesso restrito' });
  }
  res.send('Bem-vindo à área restrita.');
});