Fix Insecure API Management in RedwoodJS

RedwoodJS leverages GraphQL as its primary API interface. Insecure API Management in this stack typically manifests through overly permissive SDL directives and excessive data exposure in the Service layer. If you're using @skipAuth or failing to filter Prisma outputs, you're handing over your DB to anyone with a terminal. Harden your API by enforcing RBAC at the schema level and using strict projection in your services.

The Vulnerable Pattern

// api/src/graphql/users.sdl.js
type User {
  id: Int!
  email: String!
  internalNote: String
  hashedPassword: String
}
type Query {
users: [User!]! @skipAuth
}
// api/src/services/users/users.js
export const users = () => {
return db.user.findMany() // Leaks everything, including hashedPassword
}

The Secure Implementation

The vulnerability lies in the lack of access control and field-level filtering. By replacing @skipAuth with @requireAuth(roles: ['ADMIN']), we ensure only authenticated users with specific privileges can hit the resolver. On the service side, the fix moves from a generic 'findMany()' to an explicit 'select' block. This prevents sensitive fields like 'hashedPassword' from ever entering the GraphQL execution context, mitigating 'Excessive Data Exposure' even if the SDL is accidentally modified later.

// api/src/graphql/users.sdl.js
type User {
  id: Int!
  email: String!
}
type Query {
users: [User!]! @requireAuth(roles: [“ADMIN”])
}
// api/src/services/users/users.js
export const users = () => {
return db.user.findMany({
select: {
id: true,
email: true,
// internalNote and hashedPassword are never fetched from DB
},
})
}