Server-Side Swift (iOSDevUK 7)

What app developers should know about server-side Swift

Featured projects:
AlexaSkillsKit (https://github.com/choefele/AlexaSkillsKit)
swift-server-app (https://github.com/choefele/swift-server-app)
swift-lambda-app (https://github.com/choefele/swift-lambda-app)

Transcript

1. + @claushoefele
2. Server-Side Swift 2017 2016 Swift 2 Swift 3 Server APIs Work Group ? Swift.org
3. Swift Server Projects Cross-platform Swift library Slack App Alexa Skill
4. AlexaSkillsKit • Swift library to develop custom skills for Amazon Alexa • Cross-platform Swift • Development: macOS • Deployment: Linux
5. Cross-Platform Swift Swift swiftc, lldb, SPM Standard Library Foundation Dispatch 3rd Party Swift Libraries C Libraries XCTest
6. Example AlexaSkillsKit
7. Example AlexaSkillsKit
8. swiftenv swiftenv [--version] <command> install Installs a version of Swift version Displays the current active Swift version versions Lists all installed Swift versions …
9. Custom Toolchain
10. Docker
11. Docker Usage Container Image Dockerfile Registry Container build push run docker [OPTIONS] COMMAND [arg...]
13. Docker Usage Cont’d #!/bin/bash set -e SWIFT_VERSION=$(<.swift-version) docker run \ --rm \ --volume "$(pwd):/app" \ --workdir /app \ swift:$SWIFT_VERSION \ swift test --build-path /.build
14. Docker Usage Cont’d #!/bin/bash set -e SWIFT_VERSION=$(<.swift-version) docker run \ --rm \ --volume "$(pwd):/app" \ --workdir /app \ swift:$SWIFT_VERSION \ swift test --build-path /.build
15. Docker Usage Cont’d #!/bin/bash set -e SWIFT_VERSION=$(<.swift-version) docker run \ --rm \ --volume "$(pwd):/app" \ --workdir /app \ swift:$SWIFT_VERSION \ swift test --build-path /.build
16. Travis CI matrix: include: - os: osx osx_image: xcode8.3 sudo: required - os: linux dist: trusty sudo: required - os: linux dist: trusty sudo: required services: docker install: … script: … macOS Linux Docker (Linux)
17. Does it work?
18. Where are we Cross-platform Swift library Slack App Alexa Skill ✅
19. WeGoBot
20. WeGo Bot Architecture Kitura Kitura-net Environment Swift, Std Lib, Core Libs
21. Calling URLSession.shared
22. WeGo Bot Architecture Kitura BotService Spark Slack Kitura-net Environment Router Swift, Std Lib, Core Libs
23. Docker Usage cont’d Container Image Dockerfile Registry Container } Swift Extend with custom app
24. Dockerfile FROM swift:3.1 WORKDIR /app RUN apt-get update && apt-get install -y \ libssl-dev \ && rm -rf /var/lib/apt/lists/* COPY Package.swift ./ RUN swift package fetch; exit 0 EXPOSE 8090 COPY Sources ./Sources COPY Tests ./Tests RUN swift test CMD ./.build/debug/SwiftServer
25. Dockerfile FROM swift:3.1 WORKDIR /app RUN apt-get update && apt-get install -y \ libssl-dev \ && rm -rf /var/lib/apt/lists/* COPY Package.swift ./ RUN swift package fetch; exit 0 EXPOSE 8090 COPY Sources ./Sources COPY Tests ./Tests RUN swift test CMD ./.build/debug/SwiftServer
26. Dockerfile FROM swift:3.1 WORKDIR /app RUN apt-get update && apt-get install -y \ libssl-dev \ && rm -rf /var/lib/apt/lists/* COPY Package.swift ./ RUN swift package fetch; exit 0 EXPOSE 8090 COPY Sources ./Sources COPY Tests ./Tests RUN swift test CMD ./.build/debug/SwiftServer
27. Dockerfile FROM swift:3.1 WORKDIR /app RUN apt-get update && apt-get install -y \ libssl-dev \ && rm -rf /var/lib/apt/lists/* COPY Package.swift ./ RUN swift package fetch; exit 0 EXPOSE 8090 COPY Sources ./Sources COPY Tests ./Tests RUN swift test CMD ./.build/debug/SwiftServer
28. Dockerfile FROM swift:3.1 WORKDIR /app RUN apt-get update && apt-get install -y \ libssl-dev \ && rm -rf /var/lib/apt/lists/* COPY Package.swift ./ RUN swift package fetch; exit 0 EXPOSE 8090 COPY Sources ./Sources COPY Tests ./Tests RUN swift test CMD ./.build/debug/SwiftServer
29. Deployment
30. Tools Postman Docker Compose
31. Does it Work?
32. Where are we Cross-platform Swift library Slack App Alexa Skill ✅ ✅
33. Alexa Skill Alexa Voice Service Alexa Skill
34. AWS Lambda • Function as a Service, “Serverless” Architecture • Only pay for execution time • Event based • Stateless • Less server management
35. Node.js child_process
36. Lambda Execution Environment
37. Dynamic Loading on Linux
38. Does it work?
39. Integration Tests
40. Development Tools echosim.io ngrok
41. Where are we Cross-platform Swift library Slack App Alexa Skill ✅ ✅ ✅
42. Bridging the Gap CC BY 2.0 https://www.flickr.com/photos/ravi-shah/19806997920/
43. Thanks AlexaSkillsKit swift-server-app swift-lambda-app @claushoefele