调用 Alexa 技能时出现错误 400

Question

我正在开发一项 Alexa 技能，该技能使用Pylexa Python 模块以美元的比特币价值进行响应，但每次我在亚马逊的在线技能测试器上调用它时，都会收到以下错误：

There was an error calling the remote endpoint, which returned HTTP 400 : BAD REQUEST

在我的本地机器上尝试，我得到这个错误：

[400] Cert chain URL not valid.

可能是什么问题？如果有帮助，代码将部署在 Heroku 服务器上。我的代码如下，如果有帮助的话（我在另一项技能中使用了类似的代码并且它有效）：

import json
import os
import requests

from flask import Flask

from pylexa.app import alexa_blueprint
from pylexa.intent import handle_intent
from pylexa.app import handle_launch_request
from pylexa.response import PlainTextSpeech


app = Flask(__name__)
app.config['app_id'] = os.getenv('ALEXA_APP_ID')
app.register_blueprint(alexa_blueprint)

@handle_intent('GetBTC')
def handle_info_intent(request):
    try:
        print('Debug: ' + str(request.slots))
        btcValue = requests.get('http://api.coindesk.com/v2/bpi/currentprice.json').json()['bpi']['USD']['rate']
        print(btcValue)
        return PlainTextSpeech("Currently, Bitcoin is worth " + btcValue + " dollars.")
    except:
        return PlainTextSpeech("I don't know.")


@handle_intent('A')
@handle_launch_request
def handle_start_message(request):
    try:
        print("New launch!")
        btcValue = requests.get('http://api.coindesk.com/v2/bpi/currentprice.json').json()['bpi']['USD']['rate']
        print(btcValue)
        return PlainTextSpeech("Currently, Bitcoin is worth " + btcValue + " dollars.")
    except:
        return PlainTextSpeech("I don't know.")

if __name__ == '__main__':
    app.run(debug=True)

意图架构：

{
  "intents": [
    {
      "slots": [
        {
          "name": "BTC",
          "type": "CURRENCY"
        }
      ],
      "intent": "GetBTC"
    }
  ]
}

任何帮助将不胜感激。

Answer 1

所以问题不在于代码，而在于亚马逊的 Alexa 技能测试工具。

The Issue