Swift Summit: Pushing the boundaries of Swift to the Server

@Chris__Bailey | Swift@IBM #swiftsummit

Swift @ IBM Engineering TeamChris Bailey(@Chris__Bailey)

November 7th, 2016

Pushing Swift to the Server


Why Swift on the Server?


Performant Applications

4.0 4.315.8

134.2

0.0

20.0

40.0

60.0

80.0

100.0

120.0

Dur

atio

n (s

) (lo

wer

is b

ette

r)

http://benchmarksgame.alioth.debian.org/u64q/performance.php?test=spectralnorm



15.0

32.2

25.3

54.6

0.0

10.0

20.0

30.0

40.0

50.0

60.0

Low MemoryM

emor

y U

sage

(MB)

(lo

wer

is b

ette

r)




Swift is ideal for Cloud

@Chris__Bailey | Swift@IBM #swiftsummit@Chris__Bailey | Swift@IBM #swiftsummit


MARS



1998 Mars Climate ORbiteR



DeC 11: Launch from Cape Canaveral1998 Mars Climate ORbiteR



1998 Mars Climate ORbiteR DeC 11: Launch from Cape Canaveral



1999 Mars Climate ORbiteR Sept 23rd: Lost Radio Contact



1999 Mars Climate ORbiteR Sept 25th: Mission Declared a LOSS




PLANNED TRAJECTORY


PLANNED TRAJECTORY

TCM-4


PLANNED TRAJECTORY

TCM-4


PLANNED TRAJECTORY

TCM-4

226 KM


PLANNED TRAJECTORY

TCM-4

ACTUAL TRAJECTORY

226 KM


PLANNED TRAJECTORY

TCM-4

ACTUAL TRAJECTORY

226 KM

TCM-4


PLANNED TRAJECTORY

TCM-4

TCM-4 ACTUAL TRAJECTORY

226 KM


PLANNED TRAJECTORY

TCM-4

ACTUAL TRAJECTORY

226 KM

57 KM

TCM-4

@Chris__Bailey | Swift@IBM #swiftsummit@Chris__Bailey | Swift@IBM #swiftsummit


Lockheed MartinGround SoftwareNasa Jet Propulsion Laboratory

Trajectory Calculation Software


Lockheed MartinGround Software

Nasa Jet Propulsion Laboratory Trajectory Calculation Software

SIS(Software Interface Specification)

Total Impulse

pounds-seconds (United States Customary Unit)

newton-seconds (International System of Units)

14.45


“Software interop is hard”



“Software interop is hard” —Rocket Scientists



Siloed Development

APISpecification

Collaborate on API

Collaborate on API

Create

Deploy

Create

Deploy


Collaborate on Project

Collaborate on Project

Collaborative Development

Deploy DeployGenerate

APISpecification


Swift DevelopmentCollaborate on Swift Project

Deploy DeployGenerate

Swagger APISpecification

Collaborate on Swift Project


Collaboratively Building Applications


December 3rd, 2015

Apache 2.0 Software Licence

Swift Everywhere


Kitura: A Swift Web Framework and HTTP Server

http://kitura.io

http://kitura.io


Server / Cloud Deployment Server / Cloud Deployment Apple Client Deployment

Client Facing App Client-Specific

Libraries

Kitura Web Framework

Swift

StandardLibrary Foundation Dispatch

Swift

StandardLibrary Foundation Dispatch

Net

wor

king

Sec

urity

HTT

P P

arsi

ng

Application Libraries

Application Specific Cloud Services

Server-Specific LibrariesApplication Libraries

Consistent Runtime across Clients/Servers

Kitura-based Server !Built with Dispatch & Foundation

Swift

“Server” APIs

Application Libraries


Swift on the Server is Real

Swift 3.0 + Kitura 1.0


Let’s take a tour…


Create an ApplicationFirst, create a new project directory:$ mkdir myFirstProject

Next, create a new Swift project using the Swift Package Manager.$ cd myFirstProject$ swift package init —-type executable

In Package.swift, add Kitura as a dependency for your project.import PackageDescription

let package = Package( name: "myFirstProject", dependencies: [ .Package(url: "https://github.com/IBM-Swift/Kitura.git", majorVersion: 1, minor: 0) ])


Create an ApplicationIn Sources/main.swift, add the following code.import Kitura

// Create a new router let router = Router()

// Handle HTTP GET requests to / router.get("/") { request, response, next in response.send("Hello, World!") next() }

// Add an HTTP server and connect it to the router Kitura.addHTTPServer(onPort: 8090, with: router)

// Start the Kitura runloop (this call never returns) Kitura.run()


Deploy an Application

Open your browser at http://localhost:8090

Compile and run your application:$ swift build$ .build/debug/myFirstProject

localhost:8090/


Demo


Use Services


Deploy to Cloud

$ docker pull ibmcom/kitura-ubuntu:latest $ git clone https://github.com/IBM-Swift/Kitura-Starter-Bluemix


Using Cloud Tools

http://cloudtools.bluemix.net

• Deployment made easy

• Clone, code, push

• Demo projects to try

http://cloudtools.bluemix.net


http://www.kitura.io/en/resources/tutorials.html

Tutorials• Creating a Todo-List Backend• Adding Authentication with Kitura-Credentials• Adding Sessions with Kitura-Session• Using Templating Engines with Kitura• Enabling SSL/TLS on Kitura• Using FastCGI with Kitura• Special Types of Response Handlers• Parsing Requests

http://www.kitura.io/en/resources/tutorials.html


Examples

Blitter Social Networkhttps://github.com/ibm-swift/blitter

BluePic Applicationhttps://github.com/ibm-swift/bluepic

https://github.com/ibm-swift/blitter

https://github.com/ibm-swift/bluepic


Discover Try

Build

IBM Cloud Tools

Package Catalog Swift Sandbox

Kitura + Packages

DeploySwift @ IBMhttps://developer.ibm.com/swift/


Swift


Swift For safer missions to Mars
