Alexa - call web API in localhost from AWS Lambda Console

Question

I have my Alexa's lambda function on AWS Lambda Console. There I call a web API I created.

If I call my web API on Visual Studio Code, it works great. But if I use Alexa Developer Console to call my web API, it always says:

Error: connect ECONNREFUSED 127.0.0.1:63713

It's because my web API is in localhost? How can I solve this? I'm struggling yet to testing in local with Alexa Developer Console...

My code:

var url = "http://localhost:63713/_apis/v1.0/Car/GetCarById?id=1";

http.get(url, function (res) {
    var webResponseString = '';

    if (res.statusCode != 200) {
        doWebRequestCallBack(new Error("Non 200 Response"), null);
    }

    res.on('data', function (data) {
        webResponseString += data;
    });

    res.on('end', function () {
        var webResponseObject = JSON.parse(webResponseString);
        doWebRequestCallBack(null, webResponseObject);
    });
}).on('error', function (e) {
    doWebRequestCallBack(new Error(e.message), null); // <-- where I recive the error message
});

Answer 1

localhost always points to the machine the code is running on.

In this case the lambda is running on one of Amazon's machines so the web app you are trying to access will not be there (as it's running on your machine).

You will need to deploy your web app to somewhere public (e.g. a AWS VM or Light sail instance) and update the lambda to point to that location.