Alexa NodeJS語音輸出失敗，沒有特定錯誤

Question

我正在嘗試創建一種Alexa技能，該技能可以根據Alexa設備的位置查找Web服務上的位置。

我已經完成所有代碼的工作，因為我可以在日志中看到正確的輸出，但是我一直在努力的一件事就是使語音輸出正常工作。

任何幫助將不勝感激。 我對NodeJS很陌生。 我覺得這與在https.request中調用tell有關，但是現在我不知道如何解決這個問題。

碼：

deviceAddressRequest.then((addressResponse) => {
    switch(addressResponse.statusCode) {
        case 200:
            console.log("Address successfully retrieved, now responding to user.");
            const address = addressResponse.address;
            const postcode = `${address['postalCode']}`;

            // Get JSON response

            console.info("test begin");

            var post_data =
            {
                "postcode":
                "`${address['postalCode']}`"
            };
            console.info ('Users postcode is ' + postcode);
            var post_options = {
                host:  '[redacted]',
                port: '443',
                path: '/alexa/address.php?postcode=' + encodeURI(postcode),
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json',
                    'Content-Length': Buffer.byteLength(JSON.stringify(post_data))
                }
            };
            console.info ('Post options set');
            var post_req = https.request(post_options, function(res) {
                res.setEncoding('utf8');
                var returnData = "";
                res.on('data', function (chunk) {
                    returnData += chunk;
                });
                res.on('end', function () {
                    console.info("Data returned!")
                    console.info('returnData: ' + returnData);
                    var nearBoutique = JSON.parse(returnData).location1;
                    console.info("Nearest location: " + nearLocation);
                    const ADDRESS_MESSAGE = "Your nearest location is: " + nearLocation;
                });
            });
            post_req.write(JSON.stringify(post_data));
            post_req.end();
            console.info(ADDRESS_MESSAGE);
            // I tried it here, and also under the "const ADDRESS_MESSAGE"
            this.emit(":tell", ADDRESS_MESSAGE);
            break;
        case 204:
            console.log("Successfully requested from the device address API, but no address was returned.");
            this.emit(":tell", Messages.NO_ADDRESS);
            break;
        case 403:
            console.log("The consent token we had wasn't authorized to access the user's address.");
            this.emit(":tellWithPermissionCard", Messages.NOTIFY_MISSING_PERMISSIONS, PERMISSIONS);
            break;
        default:
            this.emit(":ask", Messages.LOCATION_FAILURE, Messages.LOCATION_FAILURE);
    }

    console.info("Ending getAddressHandler()");
});

和Lambda CloudWatch日志：

START RequestId: *** Version: $LATEST
Beginning execution for skill with APP_ID=amzn1.ask.skill.***
Starting newSessionRequestHandler()
Starting getAddressHandler()
Creating AlexaAddressClient instance.
Ending newSessionRequestHandler()
Ending execution for skill with APP_ID=amzn1.ask.skill.***
Device Address API responded with a status code of : 200
Address successfully retrieved, now responding to user.
test begin
Users postcode is *** ***
Post options set
Data returned!
returnData: {"location1":"123 Street Name, London, is currently open.","location2":"123 Street Name, London, is currently open.","store3":"123 Street Name, London, is currently open.","postcode":*** ***}
Nearest location: 123 Street Name, London, is currently open.
END RequestId: ***
REPORT RequestId: Duration: 1869.51 ms Billed Duration: 1900 ms Memory Size: 128 MB Max Memory Used: 31 MB
START RequestId:  Version: $LATEST
Beginning execution for skill with APP_ID=amzn1.ask.skill.***
Starting sessionEndedRequestHandler()
Ending sessionEndedRequestHandler()
Ending execution for skill with APP_ID=amzn1.ask.skill.***
END RequestId: 
REPORT RequestId:  Duration: 15.49 ms Billed Duration: 100 ms Memory Size: 128 MB Max Memory Used: 31 MB

我不是在尋找直接的解決方案，但是朝着正確方向的指針將是很好的選擇。

謝謝

Answer 1

this關鍵字在JavaScript中的工作方式似乎是一個問題，您需要從mdn中檢查此鏈接以進一步了解它的工作方式以及關於箭頭功能的工作方式。