Building Server-Side APIs with Swift Vapor

Vapor Framework

Vapor is a web framework for Swift that allows you to build server-side applications and APIs.

Setting Up Vapor

# Install Vapor CLI
brew install vapor/tap/vapor

# Create new project
vapor new MyAPI
cd MyAPI
vapor build
vapor run

Routes

import Vapor

func routes(_ app: Application) throws {
    app.get("users") { req async throws -> [User] in
        return try await User.query(on: req.db).all()
    }
    
    app.post("users") { req async throws -> User in
        let user = try req.content.decode(User.self)
        try await user.save(on: req.db)
        return user
    }
}

Best Practices

• Use async/await for all operations
• Implement proper error handling
• Use Fluent ORM for database
• Leverage Swift's type safety
• Use middleware for common tasks