Swift

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. Swift

func chilkatTest() {
    var success: Bool = false

    // 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()!
    success = jsonToken.loadFile(path: "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.

    // {
    //     "q": "The quick brown fox jumped over the lazy dog.",
    //     "source": "en",
    //     "target": "es",
    //     "format": "text"
    // }

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

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

    let resp = CkoHttpResponse()!
    success = http.httpJson(verb: "POST", url: "https://translation.googleapis.com/language/translate/v2", json: json, contentType: "application/json", response: resp)
    if success == false {
        print("\(http.lastErrorText!)")
        return
    }

    let jResp = CkoJsonObject()!
    resp.getBodyJson(json: 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.")
        return
    }

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

    // {
    //   "data": {
    //     "translations": [
    //       {
    //         "translatedText": "El zorro r�pida 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
    }


}