Server-side Swift

Transcript

1. Server-side Swift Petr Pavlik wormapp.co @ptrpavlik
2. Why Swift?
3. Why Swift? It helps you write safer code
4. Swift struct User { let id: String = guuid() var name: String var aboutMe: String? } var user = User(name: "Petr", aboutMe: nil)
5. Swift var user = User(name: "Petr", aboutMe: nil) print("\(user)") User(id: "34jk43k43k", name: "Petr", aboutMe: nil)
6. Swift var user = User(name: "Petr", aboutMe: nil) user.id = "123" //error
7. Swift var user = User(name: "Petr", aboutMe: nil) user.aboutMe = "something creative" //ok let immutableUser = user immutableUser.aboutMe = "!"#" //error
8. What Is Open Source
9. What Is Open Source • Swift Compiler
10. What Is Open Source • Swift Compiler • Foundation Framework & GCD • Networking, calendar, filesystem, threading, ...
11. What Is Open Source • Swift Compiler • Foundation Framework & GCD • Networking, calendar, filesystem, threading, ... • Swift Package Manager • Dependency manager
13. What Is Open Source • Swift Compiler • Foundation Framework & GCD • Networking, calendar, filesystem, threading, ... • Swift Package Manager • Dependency manager • XCTest • Unit testing
14. Example App feat. Kitura
15. Example App $ swift build --init
16. Example App $ swift build --init !
17. Example App Example ├── Package.swift ├── Sources │ └── main.swift └── .swiftenv
18. Package.swift import PackageDescription let package = Package( name: "example", dependencies: [ .Package(url: "https://github.com/IBM-Swift/Kitura.git", majorVersion: 0, minor: 17) ])
19. main.swift import Kitura
20. main.swift import Kitura let router = Router()
21. main.swift import Kitura let router = Router() router.get("/") { request, response, next in response.send("Hello, World!") next() }
22. main.swift import Kitura let router = Router() router.get("/") { request, response, next in response.send("Hello, World!") next() } Kitura.addHTTPServer(onPort: 8090, with: router)
23. main.swift import Kitura let router = Router() router.get("/") { request, response, next in response.send("Hello, World!") next() } Kitura.addHTTPServer(onPort: 8090, with: router) Kitura.run()
24. main.swift import Kitura let router = Router() router.get("/") { request, response, next in response.send("Hello, World!") next() } Kitura.addHTTPServer(onPort: 8090, with: router) Kitura.run() //!
25. Example App $ swift build
26. Example App Example ├── Package.swift ├── Sources │ └── main.swift ├── Packages │ └── Kitura-0.16.1 │ └── Kitura-net-0.16.0 │ └── Kitura-Sys-0.16.0 │ └── LoggerAPI-0.8.0 └── .build └── debug └── example
27. Example App $ .build/debug/example
28. Example App $ .build/debug/example $ curl http://localhost:8090 Hello, World!
29. Example App $ swift build -X generates an Xcode project
31. Frameworks • Kitura - !/IBM-Swift/Kitura • Perfect - !/PerfectlySoft/Perfect • Vapor - !/qutheory/vapor
32. Deployment • Docker • https://hub.docker.com/r/ibmcom/kitura-ubuntu/ • http://kubernetes.io • Heroku, IBM Bluemix • Buildpack • Procfile • .swiftenv
33. Thank you! @ptrpavlik