(Swift 2) 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.UpdateString("SourceLanguageCode", value: "en")
    json.UpdateString("TargetLanguageCode", value: "de")
    json.UpdateString("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.StringOf("TranslatedText"))")

}