将Google Action导出为Alexa Skill时的HTTPS端点及Webhook问题

1. Is the Alexa HTTPS Service Endpoint the Same as Dialogflow's Webhook Fulfillment URL? #

Yes, exactly! The HTTPS endpoint you need to enter in the Alexa Skills Kit console is the same Webhook fulfillment URL you configured in Dialogflow.

A few key details to remember:

• Alexa only accepts HTTPS endpoints (HTTP won’t work), so ensure your URL starts with https://.
• Your fulfillment code needs to handle both Dialogflow and Alexa request formats. When you export your Google Action to Alexa via Dialogflow’s tool, the Alexa skill will forward user requests to this Webhook. Make sure your code can parse Alexa’s request structure and return valid Alexa responses—Dialogflow’s exporter usually adds basic support for this, but it’s worth double-checking your handler logic.

2. Why Do I Get "Action Error: no matching intent handler for: null" When Opening the Webhook URL in a Browser? #

This error is totally normal—here’s the breakdown:

• Webhook endpoints for Dialogflow and Alexa are built to handle POST requests with structured JSON bodies that include intent details, user input, and other context.
• When you open the URL in a browser, you’re sending a simple GET request with no request body. Your fulfillment code can’t find any intent data (hence the null value) and throws that error because it doesn’t have a handler for this empty, unstructured request.

To properly test your Webhook:

• Use tools like Postman or curl to send a POST request with a sample Alexa or Dialogflow JSON payload (you can grab sample request structures from official docs).
• Don’t waste time validating the endpoint via browser access—focus on testing with actual request payloads that match what Alexa will send.

内容的提问来源于stack exchange，提问作者FatalError