Download as PDF, PPTX
![import Kitura
import SwiftyJSON
router.all("/*", middleware: BodyParser())
router.post(path, handler: handleCreate)
func handleCreate(request: RouterRequest, response: RouterResponse,
next: @escaping () -> Void) {
guard case .json(let json)? = request.body else {
response.status(.badRequest)
response.send(json: JSON([ "error": "Request not JSON" ]))
return next()
}
}
12](https://image.slidesharecdn.com/frenchkit2017server-lessswift-170922124844/75/FrenchKit-2017-Server-less-Swift-12-2048.jpg)
![import Kitura
import SwiftyJSON
router.all("/*", middleware: BodyParser())
router.post(path, handler: handleCreate)
func handleCreate(request: RouterRequest, response: RouterResponse,
next: @escaping () -> Void) {
guard case .json(let json)? = request.body else {
response.status(.badRequest)
response.send(json: JSON([ "error": "Request not JSON" ]))
return next()
}
let name = json["name"].string
let rating = json[“rating"].number
// etc
// etc
}
13](https://image.slidesharecdn.com/frenchkit2017server-lessswift-170922124844/75/FrenchKit-2017-Server-less-Swift-13-2048.jpg)
![import Kitura
import SwiftyJSON
router.all("/*", middleware: BodyParser())
router.post(path, handler: handleCreate)
func handleCreate(request: RouterRequest, response: RouterResponse,
next: @escaping () -> Void) {
guard case .json(let json)? = request.body else {
response.status(.badRequest)
response.send(json: JSON([ "error": "Request not JSON" ]))
return next()
}
let name = json["name"].string
let rating = json[“rating"].number
// etc
// etc
next()
}
14](https://image.slidesharecdn.com/frenchkit2017server-lessswift-170922124844/75/FrenchKit-2017-Server-less-Swift-14-2048.jpg)
![29
func main(args: [String:Any]) -> [String:Any] {
// Action code
// goes here
return [ “result" : "value" ]
}](https://image.slidesharecdn.com/frenchkit2017server-lessswift-170922124844/75/FrenchKit-2017-Server-less-Swift-29-2048.jpg)
![30
func main(args: [String:Any]) -> [String:Any] {
// Action code
// goes here
return [ “result" : "value" ]
}
Entry Point](https://image.slidesharecdn.com/frenchkit2017server-lessswift-170922124844/75/FrenchKit-2017-Server-less-Swift-30-2048.jpg)
![31
func main(args: [String:Any]) -> [String:Any] {
// Action code
// goes here
return [ “result" : "value" ]
}
Entry Point Event Parameters](https://image.slidesharecdn.com/frenchkit2017server-lessswift-170922124844/75/FrenchKit-2017-Server-less-Swift-31-2048.jpg)
![32
func main(args: [String:Any]) -> [String:Any] {
// Action code
// goes here
return [ “result" : "value" ]
}
Entry Point Event Parameters
Result](https://image.slidesharecdn.com/frenchkit2017server-lessswift-170922124844/75/FrenchKit-2017-Server-less-Swift-32-2048.jpg)
![33
func main(args: [String:Any]) -> [String:Any] {
}](https://image.slidesharecdn.com/frenchkit2017server-lessswift-170922124844/75/FrenchKit-2017-Server-less-Swift-33-2048.jpg)
![34
func main(args: [String:Any]) -> [String:Any] {
if let name = args["name"] as? String {
}
}](https://image.slidesharecdn.com/frenchkit2017server-lessswift-170922124844/75/FrenchKit-2017-Server-less-Swift-34-2048.jpg)
![35
func main(args: [String:Any]) -> [String:Any] {
if let name = args["name"] as? String {
return [ "greeting" : "Hello (name)!" ]
}
}](https://image.slidesharecdn.com/frenchkit2017server-lessswift-170922124844/75/FrenchKit-2017-Server-less-Swift-35-2048.jpg)
![36
func main(args: [String:Any]) -> [String:Any] {
if let name = args["name"] as? String {
return [ "greeting" : "Hello (name)!" ]
} else {
return [ "greeting" : "Hello stranger!" ]
}
}](https://image.slidesharecdn.com/frenchkit2017server-lessswift-170922124844/75/FrenchKit-2017-Server-less-Swift-36-2048.jpg)
![var params = [String: String]()
params["payload"] = "Hello"
67](https://image.slidesharecdn.com/frenchkit2017server-lessswift-170922124844/75/FrenchKit-2017-Server-less-Swift-67-2048.jpg)
![var params = [String: String]()
params["payload"] = "Hello"
do {
try whisk.invokeAction(name: "hello", parameters: params,
hasResult: true, callback:
{(reply, error) -> Void in
})
} catch {
print("Error (error)")
}
68](https://image.slidesharecdn.com/frenchkit2017server-lessswift-170922124844/75/FrenchKit-2017-Server-less-Swift-68-2048.jpg)
![var params = [String: String]()
params["payload"] = "Hello"
do {
try whisk.invokeAction(name: "hello", parameters: params,
hasResult: true, callback:
{(reply, error) -> Void in
if let error = error {
print("Error invoking action (error.localizedDescription)")
} else {
var result = reply["result"]
print("Got result (result)")
}
})
} catch {
print("Error (error)")
}
69](https://image.slidesharecdn.com/frenchkit2017server-lessswift-170922124844/75/FrenchKit-2017-Server-less-Swift-69-2048.jpg)
Uploaded byChris Bailey
FrenchKit 2017: Server(less) Swift
The document discusses the integration of serverless architecture using Swift, Kitura, and OpenWhisk, emphasizing the shift from stack management to focusing on business logic. It outlines the creation of serverless functions with examples and describes how to invoke these functions and set up APIs. Additionally, it mentions sample applications that leverage this technology for mobile and web platforms.
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Similar to FrenchKit 2017: Server(less) Swift
FrenchKit 2017: Server(less) Swift
- 1. Server(less) Swift with Kituraand OpenWhisk Chris Bailey @Chris__Bailey FrenchKit 2017 September 22nd
- 2.
- 3.
- 4.
- 5.
- 6.
- 7. 7 iOS APP Hosted Services GATEWAY PUBLICNETWORK CLOUD NETWORK SWAGGER DATA PUSH ANALYTICS DEVOPS AVAILABILITY MONITORINGSCALING SOCIAL COGNATIVE AUTH WEB APP
- 8.
- 9.
- 10. import Kitura import SwiftyJSON router.all("/*",middleware: BodyParser()) router.post(path, handler: handleCreate) 10
- 11. import Kitura import SwiftyJSON router.all("/*",middleware: BodyParser()) router.post(path, handler: handleCreate) func handleCreate(request: RouterRequest, response: RouterResponse, next: @escaping () -> Void) { } 11
- 12. import Kitura import SwiftyJSON router.all("/*",middleware: BodyParser()) router.post(path, handler: handleCreate) func handleCreate(request: RouterRequest, response: RouterResponse, next: @escaping () -> Void) { guard case .json(let json)? = request.body else { response.status(.badRequest) response.send(json: JSON([ "error": "Request not JSON" ])) return next() } } 12
- 13. import Kitura import SwiftyJSON router.all("/*",middleware: BodyParser()) router.post(path, handler: handleCreate) func handleCreate(request: RouterRequest, response: RouterResponse, next: @escaping () -> Void) { guard case .json(let json)? = request.body else { response.status(.badRequest) response.send(json: JSON([ "error": "Request not JSON" ])) return next() } let name = json["name"].string let rating = json[“rating"].number // etc // etc } 13
- 14. import Kitura import SwiftyJSON router.all("/*",middleware: BodyParser()) router.post(path, handler: handleCreate) func handleCreate(request: RouterRequest, response: RouterResponse, next: @escaping () -> Void) { guard case .json(let json)? = request.body else { response.status(.badRequest) response.send(json: JSON([ "error": "Request not JSON" ])) return next() } let name = json["name"].string let rating = json[“rating"].number // etc // etc next() } 14
- 15. 15 Decreasing concern (andcontrol) over stack implementation Increasingfocusonbusinesslogic IaaS
- 16. 16 Decreasing concern (andcontrol) over stack implementation Increasingfocusonbusinesslogic IaaS
- 17. 17 Decreasing concern (andcontrol) over stack implementation Increasingfocusonbusinesslogic IaaS CaaS
- 18. 18 Decreasing concern (andcontrol) over stack implementation Increasingfocusonbusinesslogic IaaS CaaS PaaS
- 19. 19 Decreasing concern (andcontrol) over stack implementation Increasingfocusonbusinesslogic IaaS CaaS PaaS ?
- 20. 20 Decreasing concern (andcontrol) over stack implementation Increasingfocusonbusinesslogic IaaS CaaS PaaS ? Serverless Serverless
- 21.
- 22.
- 23. 23 PaaS Write application centricbusiness logic. FaaS Write event-driven business logic. OpenWhisk
- 24. 24 PaaS Write application centricbusiness logic. Treat compute resources as utilities. FaaS Write event-driven business logic. Treat compute resources as utilities. OpenWhisk
- 25. 25 PaaS Write application centricbusiness logic. Treat compute resources as utilities. Provides scaling, resilience and availability FaaS Write event-driven business logic. Treat compute resources as utilities. Provides scaling, resilience and availability OpenWhisk
- 26. 26 “If your PaaScan efficiently start instances in 20ms that run for half a second, then call it serverless.” - Adrian Cockcroft
- 27.
- 28.
- 29. 29 func main(args: [String:Any])-> [String:Any] { // Action code // goes here return [ “result" : "value" ] }
- 30. 30 func main(args: [String:Any])-> [String:Any] { // Action code // goes here return [ “result" : "value" ] } Entry Point
- 31. 31 func main(args: [String:Any])-> [String:Any] { // Action code // goes here return [ “result" : "value" ] } Entry Point Event Parameters
- 32. 32 func main(args: [String:Any])-> [String:Any] { // Action code // goes here return [ “result" : "value" ] } Entry Point Event Parameters Result
- 33. 33 func main(args: [String:Any])-> [String:Any] { }
- 34. 34 func main(args: [String:Any])-> [String:Any] { if let name = args["name"] as? String { } }
- 35. 35 func main(args: [String:Any])-> [String:Any] { if let name = args["name"] as? String { return [ "greeting" : "Hello (name)!" ] } }
- 36. 36 func main(args: [String:Any])-> [String:Any] { if let name = args["name"] as? String { return [ "greeting" : "Hello (name)!" ] } else { return [ "greeting" : "Hello stranger!" ] } }
- 37. 37 $ git clonehttps://github.com/openwhisk/openwhisk.git Get OpenWhisk
- 38. 38 $ git clonehttps://github.com/openwhisk/openwhisk.git $ cd openwhisk/tools/vagrant $ vagrant up Get OpenWhisk
- 39. 39 $ git clonehttps://github.com/openwhisk/openwhisk.git $ cd openwhisk/tools/vagrant $ vagrant up Get OpenWhisk Start OpenWhisk (in a Linux VM)
- 40.
- 41. $ wsk actioncreate hello main.swift 41
- 42. $ wsk actioncreate hello main.swift 42 Create Action
- 43. $ wsk actioncreate hello main.swift 43 Create Action Called
- 44. $ wsk actioncreate hello main.swift 44 Create Action Called From
- 45. $ wsk actioncreate hello main.swift ok: created action hello 45 Create Action Called From
- 46. $ wsk actioncreate hello main.swift ok: created action hello $ wsk action list 46 Create Action Called From
- 47. $ wsk actioncreate hello main.swift ok: created action hello $ wsk action list actions hello private 47 Create Action Called From
- 48. $ wsk actioncreate hello main.swift ok: created action hello $ wsk action list actions hello private 48 Create Action Our Action Called From
- 49. $ wsk actioninvoke --result hello --param name World 49
- 50. $ wsk actioninvoke --result hello --param name World 50 Invoke Action
- 51. $ wsk actioninvoke --result hello --param name World 51 Invoke Action Called
- 52. $ wsk actioninvoke --result hello --param name World 52 Invoke Action Called With Parameters
- 53. $ wsk actioninvoke --result hello --param name World { “greeting" : “Hello World!” } 53 Invoke Action Called With Parameters
- 54. 54 T Triggers • Database update •IoT sensor activation • GitHub hook • Slack notification • REST request T
- 55. 55 T A Triggers • Databaseupdate • IoT sensor activation • GitHub hook • Slack notification • REST request Actions • Your code • Single task • Any language • Docker binary • Returns JSON AT
- 56. 56 T A R Triggers •Database update • IoT sensor activation • GitHub hook • Slack notification • REST request Actions • Your code • Single task • Any language • Docker binary • Returns JSON Rules • Link Triggers to Actions • Create sequences • Many to many maps become possible ATR :=
- 57. 57 T A R Triggers •Database update • IoT sensor activation • GitHub hook • Slack notification • REST request Actions • Your code • Single task • Any language • Docker binary • Returns JSON Rules • Link Triggers to Actions • Create sequences • Many to many maps become possible ATR A A1 A2 A3 := + +:=
- 58. 58 T A RP Triggers • Database update • IoT sensor activation • GitHub hook • Slack notification • REST request Actions • Your code • Single task • Any language • Docker binary • Returns JSON Rules • Link Triggers to Actions • Create sequences • Many to many maps become possible Packages • Collection of triggers and actions ATR A A1 A2 A3 AB A2 A1 A4TR := := + + + + := :=
- 59. $ wsk apicreate /hello get hello —response-type json 59
- 60. $ wsk apicreate /hello get hello —response-type json 60 Create API
- 61. $ wsk apicreate /hello get hello —response-type json 61 Create API REST Route Method
- 62. $ wsk apicreate /hello get hello —response-type json 62 Create API REST Route Method From Action
- 63. $ wsk apicreate /hello get hello —response-type json ok: created API /hello GET for action /_/hello https://${APIHOST}:9001/api/21ef035/hello 63 Create API REST Route Method From Action
- 64. $ wsk apicreate /hello get hello —response-type json ok: created API /hello GET for action /_/hello https://${APIHOST}:9001/api/21ef035/hello $ curl https://${APIHOST}:9001/api/21ef035/hello? name=World 64 Create API REST Route Method From Action
- 65.
- 66. 66 • Mobile clientSDK for iOS and watchOS. • Fire remote triggers and invoke remote actions. • Swift 3, iOS9+ and watchOS 3. • Install by using CocoaPods, Carthage, Swift Package Manager, or from the source directory. https://github.com/apache/incubator-openwhisk-client-swift
- 67. var params =[String: String]() params["payload"] = "Hello" 67
- 68. var params =[String: String]() params["payload"] = "Hello" do { try whisk.invokeAction(name: "hello", parameters: params, hasResult: true, callback: {(reply, error) -> Void in }) } catch { print("Error (error)") } 68
- 69. var params =[String: String]() params["payload"] = "Hello" do { try whisk.invokeAction(name: "hello", parameters: params, hasResult: true, callback: {(reply, error) -> Void in if let error = error { print("Error invoking action (error.localizedDescription)") } else { var result = reply["result"] print("Got result (result)") } }) } catch { print("Error (error)") } 69
- 70.
- 71. Weather Gods • Premiumapp from Meyume Ltd. • Offers a rich interactive experience unlike other weather apps. • Sources high quality weather data from multiple providers including The Weather Company. • Provides weather notifications: • type (rain, snow etc.) • schedule (evening, morning, or live) • options (e.g. only notify about heavy rain). 71
- 72.
- 73.
- 74. 74 BluePic • Sample appfrom IBM • iOS and Web front ends • Provides photo sharing • Adds image recognition and weather data to the photo • Provides notifications to users • Social sharing • Updates to data https://github.com/IBM/BluePic
- 75. 75 PUBLIC NETWORK CLOUDNETWORK iOS APP WEB APP
- 76. 76 PUBLIC NETWORK CLOUDNETWORK iOS APP WEB APP
- 77. 77 PUBLIC NETWORK CLOUDNETWORK iOS APP WEB APP
- 78. 78 PUBLIC NETWORK CLOUDNETWORK iOS APP WEB APP
- 79. 79 PUBLIC NETWORK CLOUDNETWORK iOS APP WEB APP
- 80. 80 PUBLIC NETWORK CLOUDNETWORK iOS APP WEB APP
- 81. 81 PUBLIC NETWORK CLOUDNETWORK iOS APP WEB APP
- 82. 82 PUBLIC NETWORK CLOUDNETWORK iOS APP WEB APP
- 83. 83 Decreasing concern (andcontrol) over stack implementation Increasingfocusonbusinesslogic
- 84. 84 Decreasing concern (andcontrol) over stack implementation Increasingfocusonbusinesslogic Server Serverless