The future favors Swift

let description: String = "Há alguns anos atrás, muito se ouvia coisas como 'Quem é esse tal de JavaScript que tem atraído todos os devs para seu universo pluralista e multiplataforma?' ou ainda 'Se você sabe JavaScript, você pode ir onde quiser!'. Então, vimos uma linguagem, originalmente proposta para uma única plataforma, tomar conta dos navegadores, servidores, mobile, sistemas embarcados e muito mais!"

let theFuture: String = description.replacingOccurrences(of: "JavaScript", with: "Swift")

Transcript

1. let title: String = “The Future Favors Swift” // @ythecombinator // #cocoaheads
2.  @ythecombinator  #BEPiD DEV I/O, NUG, COCOAHEADS, ANDROID MEETUP, IONIC MEETUP, LAMBDA I/O…  ☕ 
3.  @ythecombinator  #BEPiD DEV I/O, NUG, COCOAHEADS, ANDROID MEETUP, IONIC MEETUP, LAMBDA I/O…  ☕  #after 
4. !!!
5. this talk is much of a very opinionated conversation.
11. “in a VERY NEAR FUTURE, Swift will be in the same "FULL-STACK LANGUAGE STATE" JavaScript is in.” - ythecombinator
12. https://nodesource.com/node-by-numbers
13. https://nodesource.com/node-by-numbers
14. https://nodesource.com/node-by-numbers
15. https://nodesource.com/node-by-numbers
17. •Optionals & Generics • Protocols & Extensions • Pattern Matching • ARC • Good Error Handling • "Safety" by design • Common Functional Programming Constructs
18. http://githut.info/
19. http://githut.info/ #1  #19 
21. Swift
22. ! " #  %
23. server- side !
25. …
26. https://github.com/Awesome-Server-Side-Swift/TheList
27. import Vapor let drop = Droplet() drop.get("/hello") { _ in return "Hello Vapor" } drop.run()
28. import Kitura let router = Router() router.get("/") { request, response, next in response.send("Hello, World!") next() } Kitura.addHTTPServer(onPort: 8090, with: router) Kitura.run()
29. import HTTPServer let log = LogMiddleware() let router = BasicRouter { route in route.get("/hello") { request in return Response(body: "Hello, world!") } } let server = try Server(port: 8080, middleware: [log], responder: router) try server.start()
30. Basic Stuff !
31. user auth • log a user in; • keep a user logged in; • log out; • access an user.
32. user auth
33. raw database support database interfaces for Swift.
34. raw database support DB/FW Perfect Vapor Kitura Zewo MySQL ✔ ✔ ✔ ✔ PostgreSQL ✔ ✔ ✔ ✔ MongoDB ✔ ✔ ✔ ✔ Redis ✔ ✔ ✔ ✔ RethinkDB ✔ ✔ ✔ ✔ Cassandra ✔ CouchDB ✔
35. Object- Relational Mapping • models, relationships, and querying; • spares you from writing custom SQL.
36. Object- Relational Mapping Framework Perfect Vapor Kitura Zewo ✔ ✔
37. Routing • interpret visitor input URLs; • parse them; • retrieve parameters.
38. Routing Framework Perfect Vapor Kitura Zewo ✔ ✔ ✔ ✔
39. Sessions allow associating stageful information with individual visitors.
40. Sessions Framework Perfect Vapor Kitura Zewo ✔ ✔ ✔ ✔
41. Templating • syntax for searching & replacing placeholders in markup; • conditionals/loops etc.; • "Mustache"
42. Framework Perfect Vapor Kitura Zewo ✔ ✔ ✔ ✔ Templating
43. WebSockets • full-Duplex communication channels over TCP; • real-time data transfer (client/ server)
44. Framework Perfect Vapor Kitura Zewo ✔ ✔ ✔ WebSockets
45. Deploying putting things into action!
46. Deploying Method/FW Perfect Vapor Kitura Zewo Heroku ✔ ✔ ✔ ✔ Docker ✔ ✔ ✔ ✔ AWS ✔ ✔ ✔ ✔ BlueMix ✔ ✔ Digital Ocean ✔ ✔ ✔ ✔
47. Version Manager a tool that helps manage different versions of the language that you are using.
48. Version Manager
49. Version Manager $ brew install kylef/formulae/swiftenv $ echo 'export SWIFTENV_ROOT="$HOME/.swiftenv"' >> ~/.bash_profile $ echo 'export PATH="$SWIFTENV_ROOT/bin: $PATH"' >> ~/.bash_profile $ echo 'eval "$(swiftenv init -)"' >> ~/.bash_profile $ swiftenv install 3.0.0
50. Version Manager $ brew install kylef/formulae/swiftenv $ echo 'export SWIFTENV_ROOT="$HOME/.swiftenv"' >> ~/.bash_profile $ echo 'export PATH="$SWIFTENV_ROOT/bin: $PATH"' >> ~/.bash_profile $ echo 'eval "$(swiftenv init -)"' >> ~/.bash_profile $ swiftenv install 3.0.0  Install
51. Version Manager $ brew install kylef/formulae/swiftenv $ echo 'export SWIFTENV_ROOT="$HOME/.swiftenv"' >> ~/.bash_profile $ echo 'export PATH="$SWIFTENV_ROOT/bin: $PATH"' >> ~/.bash_profile $ echo 'eval "$(swiftenv init -)"' >> ~/.bash_profile $ swiftenv install 3.0.0 Setup shims/ completions
52. $ brew install kylef/formulae/swiftenv $ echo 'export SWIFTENV_ROOT="$HOME/.swiftenv"' >> ~/.bash_profile $ echo 'export PATH="$SWIFTENV_ROOT/bin: $PATH"' >> ~/.bash_profile $ echo 'eval "$(swiftenv init -)"' >> ~/.bash_profile $ swiftenv install 3.0.0 Version Manager  Use
53. Package Manager a tool that helps manage different versions of the libraries that you are using.
54. Package Manager
55. import PackageDescription let package = Package( name: "MyPackage", dependencies: [ .Package(url: "https://github.com/me/ package.git", majorVersion: 3), ] ) Package Manager
56. Package Manager import PackageDescription let package = Package( name: "MyPackage", dependencies: [ .Package(url: "https://github.com/me/ package.git", majorVersion: 3), ] )  Project Metadata
57. Other Stuff • File System • Compression • Encryption / Cryptography • Logging • Command Line Access • Push Notifications • Networking • Parsers (XML/JSON) • …
58. https://github.com/Awesome- Server-Side-Swift/TheList Other Stuff
59. Goin’ Deeper !
60. Communicating Sequential Processes • concurrently executing entities; • communicating by sending “messages” to each other.
61. Communicating Sequential Processes • provides two concurrency primitives namely coroutines and channels • allow concurrent programming in the style of Golang.
62. Communicating Sequential Processes: Channels • a thread-safe queue; • any entity can add messages or retrieve messages from a channel without worrying about interference; • by default, a channel is synchronous.
63. Communicating Sequential Processes: Coroutines • a procedure executing concurrently with other coroutines; • a coroutine may send messages to and receive messages from channels;
64. Communicating Sequential Processes • you might get “some” parallelism with this approach–but not a lot; • if channel is not ready a coroutine waits by giving way to other coroutines
65. Communicating Sequential Processes a single thread can “multiplex” thousands of routines and ensure that “logically concurrent entities” are making progress
66. https://github.com/Zewo/ Venice Communicating Sequential Processes: Venice
67. Communicating Sequential Processes: Venice func doSomething() { print("did something") } doSomething() co(doSomething()) co { print("did something else") }
68. Communicating Sequential Processes: Venice func doSomething() { print("did something") } doSomething() co(doSomething()) co { print("did something else") }  Sample Function
69. Communicating Sequential Processes: Venice func doSomething() { print("did something") } doSomething() co(doSomething()) co { print("did something else") }  Regular Call
70. Communicating Sequential Processes: Venice func doSomething() { print("did something") } doSomething() co(doSomething()) co { print("did something else") }  Coroutine Call
71. Communicating Sequential Processes: Venice func doSomething() { print("did something") } doSomething() co(doSomething()) co { print("did something else") } Coroutine Closure
72. Communicating Sequential Processes: Venice let messages = Channel<String>() co(messages.send(“Hello, CocoaHeads")) let message = messages.receive()! print(message)
73. Communicating Sequential Processes: Venice let messages = Channel<String>() co(messages.send(“Hello, CocoaHeads")) let message = messages.receive()! print(message) Creating a Channel
74. Communicating Sequential Processes: Venice let messages = Channel<String>() co(messages.send(“Hello, CocoaHeads")) let message = messages.receive()! print(message) Sending a Message
75. Communicating Sequential Processes: Venice let messages = Channel<String>() co(messages.send(“Hello, CocoaHeads")) let message = messages.receive()! print(message) Receiving a Message
76. Communicating Sequential Processes • Apple, • Cloudflare, • Google, • Sendgrid, • Dropbox, • Soundcloud, • Bitly, • Digitalocean, • Twitter
77. Communicating Sequential Processes https://github.com/golang/go/ wiki/GoUsers
78. Functions as a Service / Serverless Architecture • functions as a unit of application logic; • development focus on well defined units of business logic.
79. • without decisions related to how this logic is deployed or scaled; • frees the developer from deployment concerns. Functions as a Service / Serverless Architecture
80. • running back-end code without managing your own server systems or applications; • deployment is very different to traditional systems; • horizontal scaling is completely automatic. Functions as a Service / Serverless Architecture
81. • Amazon AWS Lambda; • Google Cloud Functions; • Windows Azure Functions; • Auth0 Webtasks. Functions as a Service / Serverless Architecture
82. https://github.com/algal/ SwiftOnLambda Functions as a Service / Serverless Architecture
83. “people have been doing "BIG-BOY" EXPERIMENTS with FULL-STACK SWIFT.”
84. https://medium.com/@qutheory/server-side-swift-vs-the-other-guys-2- speed-ca65b2f79505#.4184w43vy
85. https://medium.com/@qutheory/server-side-swift-vs-the-other-guys-2- speed-ca65b2f79505#.4184w43vy
86. https://medium.com/@qutheory/server-side-swift-vs-the-other-guys-2- speed-ca65b2f79505#.4184w43vy
87. https://medium.com/@rymcol/benchmarks-for-the-top-server-side-swift- frameworks-vs-node-js-24460cfe0beb#.ze0k1uuda
88. https://medium.com/@rymcol/benchmarks-for-the-top-server-side-swift- frameworks-vs-node-js-24460cfe0beb#.ze0k1uuda
89. https://medium.com/@rymcol/benchmarks-for-the-top-server-side-swift- frameworks-vs-node-js-24460cfe0beb#.ze0k1uuda
90. https://medium.com/@rymcol/benchmarks-for-the-top-server-side-swift- frameworks-vs-node-js-24460cfe0beb#.ze0k1uuda
91. https://swiftybeaver.com/
92. • Vapor 1.18 • Swift 3.0.1 • Ubuntu 16.04 • AWS EC2 cloud instances • AWS ELB https://medium.com/swiftybeaver- blog/deployment-of-a-vapor-app- to-aws-ec2-f577eaa6c38c#.j5nflt5tv
93. https://swiftybeaver.com/ ~20K req/sec
94. front- end 
95. Swift to JavaScript Compiler https://github.com/shift-js/shift-js
96. func greet(person:String, event:String) -> String { return "Hello \(person). Welcome to \(event)!" } greet("Augusto", event: "CocoaHeads") Swift to JavaScript Compiler  function greet(person, event) { return 'Hello ' + person + '. Welcome to ' + event + '!'; } greet('Augusto', 'CocoaHeads');
97. • Basic Declarations and Assignment; • Basic Operators; • Arrays and Dictionaries; • Control Flow; • Functions; • String Interpolation and Concatenation Swift to JavaScript Compiler
98. Swift to TypeScript Compiler https://github.com/ marcelganczak/swift-js-transpiler
99. let array: [String] = ["CocoaHeads", "is", "top"] print(array.count) print(array[0].characters.count) Swift to TypeScript Compiler const array:Array<string> = [ "CocoaHeads" , "is" , “top!" ]; console.log(array.length); console.log(array[0].length); 
100. • data types (primitives, tuples, arrays, dictionaries, sets) • control flow (if, for- in, while) • optionals & chaining • functions & closures Swift to TypeScript Compiler
101. mobile "
102. Swift to Android Target Compiler
104. https://github.com/apple/swift-evolution
105. https://github.com/apple/swift/blob/master/docs/Android.md
106. https://swift.org/server-apis/
107. https://swift.org/server-apis/
108. https://swift.org/server-apis/
109. slides available at: BIT.LY/SERVER-SIDE-SWIFT- COCOAHEADS
110. thanks! ythecombinator gitbub.com/ twitter.com/ instagram.com gotinder.com/@