(Swift 3,4,5...) Google Translate Text

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Demonstrates how to use the Cloud Translation API to translate text from one spoken language to another. The example translates from English to Spanish.

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

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

    // --------------------------------------------------------------------------------
    // IMPORTANT: 
    // Don't forget you need to 1st enable the Cloud Translation API in your Google Developers Console at https://console.cloud.google.com
    // --------------------------------------------------------------------------------

    // It is assumed we previously obtained an OAuth2 access token.
    // This example loads the JSON access token file 
    let jsonToken = CkoJsonObject()!
    var success: Bool = jsonToken.loadFile("qa_data/tokens/_googleTranslate.json")
    if success != true {
        print("Failed to load _googleTranslate.json")
        return
    }

    let http = CkoHttp()!

    http.authToken = jsonToken.string(of: "access_token")

    // The following JSON is sent in the request body.

    let json = CkoJsonObject()!
    // The following code creates the JSON request body.
    json.update("q", value: "The quick brown fox jumped over the lazy dog.")
    json.update("source", value: "en")
    json.update("target", value: "es")
    json.update("format", value: "text")

    json.emitCompact = false
    print("\(json.emit()!)")

    var resp: CkoHttpResponse? = http.postJson3("https://translation.googleapis.com/language/translate/v2", contentType: "application/json", json: json)
    if http.lastMethodSuccess == false {
        print("\(http.lastErrorText!)")
        return
    }

    let jResp = CkoJsonObject()!
    resp!.getBodyJson(jResp)
    jResp.emitCompact = false

    print("Response Body:")
    print("\(jResp.emit()!)")

    var respStatusCode: Int = resp!.statusCode.intValue
    print("Response Status Code = \(respStatusCode)")
    if respStatusCode >= 400 {
        print("Response Header:")
        print("\(resp!.header!)")
        print("Failed.")
        resp = nil
        return
    }

    resp = nil

    // Sample JSON response:
    // (Sample code for parsing the JSON response is shown below)

    // {
    //   "data": {
    //     "translations": [
    //       {
    //         "translatedText": "El zorro rpida salt sobre el perro perezoso."
    //       }
    //     ]
    //   }
    // }

    var translatedText: String?

    var i: Int = 0
    var n: Int = jResp.size(ofArray: "data.translations").intValue
    while i < n {
        jResp.i = i
        translatedText = jResp.string(of: "data.translations[i].translatedText")
        print("\(translatedText!)")
        i = i + 1
    }


}