如何在自己的服务器上使用带有Node.js的alexa-sdk运行Alexa技能而不使用Lambda drop-in？

Question

The Alexa skill docs will eventually allow you to send webhooks to https endpoints. However the SDK only documents lambda style alexa-sdk usage. How would one go about running Alexa applications on one's own server without anything abstracting Lambda? Is it possible to wrap the event and context objects?

Answer 1

You can already use your own endpoint. When you create a new skill, in the configuration tab, just choose HTTPS and provide your https endpoint. ASK will call your endpoint where you can run anything you want (tip, check ngrok.com to tunnel to your own dev machine). Regarding the event and context objects; your endpoint will receive the event object information. You don't need the context object for anything, that just lets you interact with Lambda-specific stuff ( http://docs.aws.amazon.com/lambda/latest/dg/python-context-object.html ). Just make sure that you comply with the (undocumented) timeouts by ASK and you are good to go.

Answer 2

Here's a way to do this that requires only a small change to your Skill code:

1. In your main index.js entry point, instead of:

    exports.handler = function (event, context) { 

   use something like:

    exports.myAppName = function (funcEvent, res) { 

2. Below that, add the following workaround:

    var event = funcEvent.body // since not using Lambda, create dummy context with fail and succeed functions const context = { fail: () => { res.sendStatus(500); }, succeed: data => { res.send(data); } }; 

3. Install and use Google Cloud Functions Local Emulator on your laptop. When you start and deploy your function to the emulator, you will get back a Resource URL something like http://localhost:8010/my-project-id/us-central1/myAppName .

4. Create a tunnel with ngrok . Then take the ngrok endpoint and put it in place of localhost:8010 in the Resource URL above. Your resulting fulfillment URL will be something like: https://b0xyz04e.ngrok.io/my-project-id/us-central1/myAppName

5. Use the fulfillment URL (like above) under Configuration in the Alexa dev console, selecting https as the Service Endpoint Type.