使用Alexa CLI部署带自定义HTTPS服务器的技能报错400，求解决方案

Let's break down how to resolve this error and set up your custom HTTPS endpoint correctly.

Why You're Seeing This Error #

The sample skill.json from the hello-world template is configured to use an AWS Lambda endpoint by default. When you switch to a custom HTTPS server, you need to update the skill manifest to define a valid regionalized HTTPS endpoint—and the error is telling you this required default endpoint is missing.

Step 1: Modify the skill.json Endpoints Configuration #

Open your skill.json file and locate the apis section. Replace the existing Lambda endpoint configuration with a HTTPS endpoint array that includes a default region entry.

Here's what the updated configuration should look like:

"apis": {
  "custom": {
    "endpoints": [
      {
        "region": "default",
        "url": "https://your-public-server-domain.com/alexa-skill-endpoint",
        "sslCertificateType": "Trusted"
      }
    ]
  }
}

Let's break down each field:

• region: Setting this to default means this endpoint will be used for all Alexa regions. If you need region-specific endpoints, you can add additional entries (e.g., "region": "NA" for North America), but a default entry is mandatory.
• url: Replace this with the public HTTPS URL of your server's skill endpoint. Make sure this URL is internet-accessible and uses port 443 (the standard HTTPS port).
• sslCertificateType: Use "Trusted" if your server uses a valid SSL certificate issued by a trusted certificate authority (CA). Avoid self-signed certificates for production skills—Alexa will reject them unless you use a limited testing configuration (not recommended for live deployments).

Step 2: Validate Your Skill Manifest #

Before redeploying, use the ask-cli to check if your modified skill.json follows the correct schema:

ask validate

This command will catch any syntax or schema issues in your manifest, so you can fix them before attempting to deploy.

Step 3: Redeploy the Skill #

Once validation passes, run the deploy command again:

ask deploy

Key Notes to Remember #

• Ensure your HTTPS server can handle Alexa's JSON request payloads (following the Alexa Skill Interface specification).
• Double-check that your server's firewall or security groups allow incoming traffic from Alexa's official IP ranges.
• For local testing, you can use a tool like ngrok to expose your local server to the public internet temporarily—just replace the url with ngrok's generated HTTPS address.

内容的提问来源于stack exchange，提问作者Anna K