(Swift) Amazon Translate Text

Demonstrates how to use the AWS Translate service to translate text from one language to another.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let rest = CkoRest()!
    var success: Bool

    let authAws = CkoAuthAws()!
    authAws.accessKey = "AWS_ACCESS_KEY"
    authAws.secretKey = "AWS_SECRET_KEY"
    authAws.region = "us-west-2"
    authAws.serviceName = "translate"
    rest.setAuthAws(authAws)

    // URL: https://translate.us-west-2.amazonaws.com/
    var bTls: Bool = true
    var port: Int = 443
    var bAutoReconnect: Bool = true
    success = rest.connect("translate.us-west-2.amazonaws.com", port: port, tls: bTls, autoReconnect: bAutoReconnect)
    if success != true {
        print("ConnectFailReason: \(rest.connectFailReason.intValue)")
        print("\(rest.lastErrorText!)")
        return
    }

    // Translate text from English to German
    let json = CkoJsonObject()!
    json.update("SourceLanguageCode", value: "en")
    json.update("TargetLanguageCode", value: "de")
    json.update("Text", value: "This is the text to be translated")

    rest.addHeader("Content-Type", value: "application/x-amz-json-1.1")
    rest.addHeader("X-Amz-Target", value: "AWSShineFrontendService_20170701.TranslateText")

    let sbRequestBody = CkoStringBuilder()!
    json.emitSb(sbRequestBody)
    let sbResponseBody = CkoStringBuilder()!
    success = rest.fullRequestSb("POST", uriPath: "/", requestBody: sbRequestBody, responseBody: sbResponseBody)
    if success != true {
        print("\(rest.lastErrorText!)")
        return
    }

    var respStatusCode: Int = rest.responseStatusCode.intValue
    if respStatusCode >= 400 {
        print("Response Status Code = \(respStatusCode)")
        print("Response Header:")
        print("\(rest.responseHeader!)")
        print("Response Body:")
        print("\(sbResponseBody.getAsString()!)")
        return
    }

    let jsonResponse = CkoJsonObject()!
    jsonResponse.loadSb(sbResponseBody)
    jsonResponse.emitCompact = false

    print("\(jsonResponse.emit()!)")

    // {
    //   "SourceLanguageCode": "en",
    //   "TargetLanguageCode": "de",
    //   "TranslatedText": "Dies ist der zu �bersetzende Text"
    // }

    print("\(jsonResponse.string(of: "TranslatedText")!)")

}