This release brings database support, better testing tools, and a bunch of middleware we've been missing.

Database Integration

The big one. You can now define your schema declaratively and get SeaORM entities generated:

rapina::schema! {
    User {
        #[unique]
        email: String,
        posts: Vec<Post>,
    }

    Post {
        title: String,
        content: Text,
        author: User,  // generates author_id foreign key
    }
}

Relationships are inferred from types. Vec<Post> is has_many, User is belongs_to. Optional relationships use Option<User>. Timestamps are automatic but can be disabled with #[timestamps(none)].

Database connection via the Db extractor:

#[get("/posts")]
async fn list_posts(db: Db) -> Result<Json<Vec<Post>>> {
    let posts = Post::find().all(db.conn()).await?;
    Ok(Json(posts))
}

Enable with features = ["postgres"] (or mysql, sqlite).

Testing

New rapina test command with coverage support:

rapina test              # run tests
rapina test --coverage   # with coverage report
rapina test --watch      # re-run on file changes

Middleware

• Rate limiting - Token bucket algorithm, configurable per-route
• Response compression - gzip/brotli support
• CORS - Configurable origins, methods, headers
• Cookie extractor - Typed cookie access in handlers

Other Changes

• Fixed variable shadowing in route macros
• Modular API grouping with Router::group()
• Better error messages across the board

Upgrade

rapina = "0.4.0"

If you're using the CLI:

cargo install rapina-cli

Thanks to @juv, @ShiraiEd, and @uemuradevexe for their contributions to this release.