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はじめてのSwift Server API / Beginning Swift Server API
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Shun Takebayashi
September 15, 2017
Programming
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はじめてのSwift Server API / Beginning Swift Server API
Shun Takebayashi
September 15, 2017
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Transcript
͡ΊͯͷSwift Server API Shun Takebayashi
ΞδΣϯμ • Swift Server APIͱ • HTTP APIͱ • αϯϓϧʹֶͿHTTP
API • HTTP APIͷݱঢ় • ·ͱΊ
Swift Server APIͱ
Swift Server APIͱ αʔόʔαΠυͰඞཁͱͳΔίϯϙʔωϯτΛඪ४Խͨ͠APIͷ૯শ
Swift Server APIͱ త • ૬ޓӡ༻ੑͷ֬อ • ϚϧνϓϥοτϑΥʔϜͷରԠ
Swift Server APIͱ Χόʔ͢ΔྖҬ • ωοτϫʔΫ • ηΩϡϦςΟ • HTTP
Swift Server APIͱ Χόʔ͢ΔྖҬ • ωοτϫʔΫ • ηΩϡϦςΟ • HTTP
HTTP APIͱ
HTTP APIͱ αʔόʔαΠυͰಈ͘HTTPΞϓϦέʔγϣϯͷͨΊͷجຊతͳίϯϙʔωϯτ • ܕΠϯλʔϑΣʔε • σϑΥϧτͷ࣮ ΣϒΞϓϦέʔγϣϯϑϨʔϜϫʔΫͰͳ͍
HTTP APIͱ ΞϓϦέʔγϣϯ ϦΫΤετ Ϩεϙϯε αʔό ϦΫΤετ Ϩεϙϯε ΫϥΠΞϯτ
HTTP APIͱ ΞϓϦέʔγϣϯ ϦΫΤετ Ϩεϙϯε αʔό ϦΫΤετ Ϩεϙϯε ΫϥΠΞϯτ
HTTP APIͱ HTTPRequestHandler HTTPRequest HTTPResponseStatus, … HTTPServing ϦΫΤετ Ϩεϙϯε ΫϥΠΞϯτ
HTTP APIͱ public typealias HTTPRequestHandler = (HTTPRequest, HTTPResponseWriter) -> HTTPBodyProcessing
public protocol HTTPServing : class { func start(port: Int, handler: @escaping HTTPRequestHandler) throws // ... }
αϯϓϧʹֶͿHTTP API
let app: HTTPRequestHandler = { (request, responseWriter) in let headers:
HTTPHeaders = ["Content-Type": "text/plain"] responseWriter.writeHeader(status: .ok, headers: headers) responseWriter.writeBody("Hello, world!") return .discardBody }
let app: HTTPRequestHandler = { (request, responseWriter) in let headers:
HTTPHeaders = ["Content-Type": "text/plain"] responseWriter.writeHeader(status: .ok, headers: headers) responseWriter.writeBody("Hello, world!") return .discardBody }
let app: HTTPRequestHandler = { (request, responseWriter) in let headers:
HTTPHeaders = ["Content-Type": "text/plain"] responseWriter.writeHeader(status: .ok, headers: headers) responseWriter.writeBody("Hello, world!") return .discardBody }
let app: HTTPRequestHandler = { (request, responseWriter) in let headers:
HTTPHeaders = ["Content-Type": "text/plain"] responseWriter.writeHeader(status: .ok, headers: headers) responseWriter.writeBody("Hello, world!") return .discardBody }
try! HTTPServer().start(port: 8080, handler: app)
let app: HTTPRequestHandler = { (request, responseWriter) in responseWriter.writeHeader(status: .ok)
return .processBody { (chunk, stop) in switch chunk { case .chunk(let data, let finishedProcessing): responseWriter.writeBody(data) { _ in finishedProcessing() } case .end: responseWriter.done() default: stop = true responseWriter.abort() } } }
let app: HTTPRequestHandler = { (request, responseWriter) in responseWriter.writeHeader(status: .ok)
return .processBody { (chunk, stop) in switch chunk { case .chunk(let data, let finishedProcessing): responseWriter.writeBody(data) { _ in finishedProcessing() } case .end: responseWriter.done() default: stop = true responseWriter.abort() } } }
let app: HTTPRequestHandler = { (request, responseWriter) in responseWriter.writeHeader(status: .ok)
return .processBody { (chunk, stop) in switch chunk { case .chunk(let data, let finishedProcessing): responseWriter.writeBody(data) { _ in finishedProcessing() } case .end: responseWriter.done() default: stop = true responseWriter.abort() } } }
let app: HTTPRequestHandler = { (request, responseWriter) in responseWriter.writeHeader(status: .ok)
return .processBody { (chunk, stop) in switch chunk { case .chunk(let data, let finishedProcessing): responseWriter.writeBody(data) { _ in finishedProcessing() } case .end: responseWriter.done() default: stop = true responseWriter.abort() } } }
let app: HTTPRequestHandler = { (request, responseWriter) in responseWriter.writeHeader(status: .ok)
return .processBody { (chunk, stop) in switch chunk { case .chunk(let data, let finishedProcessing): responseWriter.writeBody(data) { _ in finishedProcessing() } case .end: responseWriter.done() default: stop = true responseWriter.abort() } } }
let app: HTTPRequestHandler = { (request, responseWriter) in responseWriter.writeHeader(status: .ok)
return .processBody { (chunk, stop) in switch chunk { case .chunk(let data, let finishedProcessing): responseWriter.writeBody(data) { _ in finishedProcessing() } case .end: responseWriter.done() default: stop = true responseWriter.abort() } } }
let app: HTTPRequestHandler = { (request, responseWriter) in responseWriter.writeHeader(status: .ok)
return .processBody { (chunk, stop) in switch chunk { case .chunk(let data, let finishedProcessing): responseWriter.writeBody(data) { _ in finishedProcessing() } case .end: responseWriter.done() default: stop = true responseWriter.abort() } } }
try! HTTPServer().start(port: 8080, handler: app)
public typealias HTTPBodyHandler = (HTTPBodyChunk, inout Bool) -> Void public
enum HTTPBodyProcessing { case discardBody case processBody(handler: HTTPBodyHandler) } public enum HTTPBodyChunk { case chunk(data: DispatchData, finishedProcessing: ()-> Void) case end // ... }
αϯϓϧʹֶͿHTTP API جຊతͳྲྀΕ • HTTPRequestHandlerΛ࣮͢Δ • HTTPRequestΛड͚औΓɺHTTPResponseWriterʹॻ͖ࠐΉ • ϦΫΤετϘσΟΛॲཧ͢Δ߹HTTPBodyHandlerΛ࣮͢Δ •
ෳճ࣮ߦ͞ΕΔՄೳੑ͕͋Δ (Chunked Transfer)
HTTP APIͷݱঢ়
HTTP APIͷݱঢ় ਖ਼ࣜϦϦʔεલ ·ͩਖ਼ࣜϦϦʔε͞Ε͓ͯΒͣɺʑվળ͞Ε͍ͯΔ • https://github.com/swift-server/http • swift-server-dev@swift.org ഁյతͳมߋ͕ߦΘΕΔՄೳੑ͋Δ
HTTP APIͷݱঢ় HTTP APIʹґଘͨ͠ΞϓϦέʔγϣϯͷϏϧυํ๏ λά͕ৼΒΕ͍ͯͳ͍ͨΊɺSwift 4ͷPackage Manager͕ඞཁ let package =
Package( name: "swift-http-example", dependencies: [ .package(url: "https://github.com/swift-server/http.git", .branch("develop")), ], targets: [ .target(name: "swift-http-example", dependencies: ["SwiftServerHTTP"]), ] )
·ͱΊ
·ͱΊ • Swift Server APIϙʔλϒϧͳαʔόʔαΠυSwiftΛ࣮ݱ͢ΔͨΊͷAPI • HTTP APIHTTPΞϓϦέʔγϣϯͷͨΊͷڞ௨ΠϯλʔϑΣʔε • ΞϓϦέʔγϣϯHTTPRequestHandlerΛ࣮
• αʔόʔHTTPServingΛ࣮ • ҙͷαʔόʔͱΞϓϦέʔγϣϯΛΈ߹Θ࣮ͤͯߦՄೳ • ·ͩਖ਼ࣜϦϦʔεલͷ༷Ͱ͋ΓɺMLͰٞͷࢀՃ͕Մೳ