如何在Python中向actions-on-google发送响应？

Question

我在做一个google上的操作助手。通过使用Flask在Python中建立webhook，我能够接收JSON格式的请求。但我不知道如何将响应发送回助理。enter image description here enter image description here

import os, sys
from flask import Flask, request, send_from_directory, make_response
from googleactions import AppRequest, AppResponse, SimpleResponse

class operation():

    def justPrint(self):
        print("Hi dear user")
        print(AppResponse('告訴我故事發生什麼事吧').json())

app = Flask(__name__)

@app.route('/', methods=['GET'])
def verify():
    return "hello world"

@app.route('/', methods=['POST'])
def webhook():
    req = request.get_json()

    print(req)
    op = operation()
    getattr(op, req['handler']['name'])()
    return 'ok', 200

if __name__ == "__main__":
    app.run(debug=True, port=8080)

Answer 1

您的Flask服务器应该以正确的格式返回JSON响应。看起来您可能正在使用googleactions包，但不幸的是，该包似乎与Actions期望的响应格式过时了。

您应该参考HandlerResponse类型的JSON schema。因为它是JSON schema，所以您可以使用a tool like Quicktype来生成适当的类，以获得额外的语法支持。

架构文件还包括内部类型的定义。

"HandlerResponse": {
  "description": "Represents a response sent from a developer's fulfillment to Actions on\nGoogle.",
  "type": "object",
  "properties": {
    "prompt": {
      "description": "Optional. Represents the prompts to be sent to the user, these prompts\nwill be appended to previously added messages unless explicitly\noverwritten.",
      "$ref": "#/definitions/Prompt"
    },
    "scene": {
      "description": "Optional. Represents the current and next scene. If `Scene.next` is set\nthe runtime will immediately transition to the specified scene.",
      "$ref": "#/definitions/Scene"
    },
    "session": {
      "description": "Optional. Describes data for the current session, session\nparameters can be created, updated, or removed by the fulfillment.",
      "$ref": "#/definitions/Session"
    },
    "user": {
      "description": "Optional. Use to specify user parameters to send back.",
      "$ref": "#/definitions/User"
    },
    "home": {
      "description": "Optional. Used to specify parameters related to the HomeGraph structure\nthat the target device belongs to. See\nhttps://developers.google.com/actions/smarthome/concepts/homegraph.",
      "$ref": "#/definitions/Home"
    },
    "device": {
      "description": "Optional. Use to move between Assistant devices the user has access to.",
      "$ref": "#/definitions/Device"
    },
    "expected": {
      "description": "Optional. Describes the expectations for the next dialog turn.",
      "$ref": "#/definitions/Expected"
    }
  }
},