Auth and OpenAPI

Authentication primitives

NestForge includes several auth-oriented request tools:

• AuthUser
• OptionalAuthUser
• BearerToken
• AuthIdentity

These are lightweight primitives. The framework does not force one auth provider or one token format on you.

Runtime auth configuration

Auth is activated at the app factory level:

NestForgeFactory::<AppModule>::create()?
    .with_auth_resolver(|token, _container| async move {
        Ok(token.map(|_| nestforge::AuthIdentity::new("demo-user").with_roles(["admin"])))
    });

Your resolver decides how bearer tokens map into identity. That keeps auth integration flexible for:

• JWTs
• opaque session tokens
• API keys translated into identities
• internal service credentials

Route protection

NestForge offers several protection mechanisms:

• #[nestforge::authenticated] for routes that require auth
• #[nestforge::roles(...)] for role-aware enforcement
• auth_guard! and role_guard! macros for explicit guard types
• route, controller, and global guard registration

OpenAPI metadata

Controllers can carry endpoint documentation directly:

#[nestforge::get("/users")]
#[nestforge::authenticated]
#[nestforge::roles("admin", "support")]
#[nestforge::summary("List users")]
#[nestforge::tag("users")]
#[nestforge::response(status = 200, description = "Users returned")]
async fn list() -> nestforge::ApiResult<Vec<UserDto>> {
    # todo!()
}

This keeps route behavior and route documentation close together.

Mount generated docs

To serve generated documentation:

use nestforge::{NestForgeFactory, NestForgeFactoryOpenApiExt};

NestForgeFactory::<AppModule>::create()?
    .with_openapi_docs("My API", "1.0.0")?
    .listen(3000)
    .await?;

That exposes:

• /openapi.json
• /docs

Practical pattern

For production apps, a solid default is:

• resolve identity centrally in with_auth_resolver(...)
• use metadata macros on routes for protected endpoints
• mount generated OpenAPI docs in non-production or behind auth
• keep role names and auth semantics explicit in controller code