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Heroku Node.js上的Google Actions API Webhook響應

[英]Google Actions API webhook response on Heroku nodejs

 原文  2017-04-30 19:17:08  6   1    node.js/ heroku/ actions-on-google/ google-home

問題描述

問題：Google Actions是否總是通過在每個用戶輸入上觸發webhook帖子而始終起作用，而我僅需工作邏輯以便每次都解析json並僅在找到我感興趣的參數時做出反應？ 還是有一種方法可以控制Google Actions API所發布的Webhook帖子，以便僅在通過包含相關參數的值來完全填充該操作時才發布它？

＃

詳細信息：我已經在Heroku上部署了這個nodejs應用程序： https : //github.com/quique123/myjsonparser/blob/master/app.js

我將它用作Google Actions API（數字精靈）示例的網絡掛鈎。 在“數字精靈”中，用戶使用“與數字精靈對話”開始游戲。 精靈回應我以為我想一個數字...猜對了。 用戶用一個數字回答，然后（並且只有這樣）才運行邏輯以將猜測與答案進行比較。

但是我在Google Home的每個帖子請求上都進行了api調用。 換句話說，每次用戶與會話api交互時，都會發出webhook帖子。 在此處可以看到，該主體不包含用戶輸入參數，並且Heroku響應“與數字精靈對話”： 

2017-04-30T19:00:31.901297+00:00 app[web.1]: headers: {"host":"myjsonparser.herokuapp.com","connection":"close","accept":"*/*","content-type":"application/json; charset=UTF-8","cache-control":"no-cache","pragma":"no-cache","user-agent":"Java/1.8.0_112","x-request-id":"5a7a2c31-9ce5-4b02-9bac-bcef55ad6818","x-forwarded-for":"54.224.155.160","x-forwarded-proto":"https","x-forwarded-port":"443","via":"1.1 vegur","connect-time":"1","x-request-start":"1493578831899","total-route-time":"0","content-length":"573"}
2017-04-30T19:00:31.901347+00:00 app[web.1]: body: {"id":"5478dfb5-54f3-451d-b975-4f984d1ce3cb","timestamp":"2017-04-30T19:00:31.858Z","lang":"en","result":{"source":"agent","resolvedQuery":"44","speech":"","action":"check_guess","actionIncomplete":false,"parameters":{"check_guess":"44"},"contexts":[],"metadata":{"intentId":"c863e1e2-c850-45d8-9b96-b57e0b1ee77e","webhookUsed":"true","webhookForSlotFillingUsed":"false","intentName":"provide_guess"},"fulfillment":{"speech":"","messages":[{"type":0,"speech":""}]},"score":1},"status":{"code":200,"errorType":"success"},"sessionId":"ff2e0c97-552b-40d3-8f06-32e612476897"}
2017-04-30T19:00:31.903553+00:00 app[web.1]: postSwitch {"id":"sw1","state":"on","name":"Koko's Lamp"}
2017-04-30T19:00:31.907017+00:00 heroku[router]: at=info method=POST path="/API/switches/sw1?password=123456" host=myjsonparser.herokuapp.com request_id=5a7a2c31-9ce5-4b02-9bac-bcef55ad6818 fwd="54.224.155.160" dyno=web.1 connect=1ms service=5ms status=200 bytes=253 protocol=https

而且，當我使用Google Actions API上的數字對其進行測試時，您可以在Heroku的“ 44”響應中看到其中包含check_guess： 

 2017-04-30T19:00:31.901297+00:00 app[web.1]: headers: {"host":"myjsonparser.herokuapp.com","connection":"close","accept":"*/*","content-type":"application/json; charset=UTF-8","cache-control":"no-cache","pragma":"no-cache","user-agent":"Java/1.8.0_112","x-request-id":"5a7a2c31-9ce5-4b02-9bac-bcef55ad6818","x-forwarded-for":"54.224.155.160","x-forwarded-proto":"https","x-forwarded-port":"443","via":"1.1 vegur","connect-time":"1","x-request-start":"1493578831899","total-route-time":"0","content-length":"573"} 2017-04-30T19:00:31.901347+00:00 app[web.1]: body: {"id":"5478dfb5-54f3-451d-b975-4f984d1ce3cb","timestamp":"2017-04-30T19:00:31.858Z","lang":"en","result":{"source":"agent","resolvedQuery":"44","speech":"","action":"check_guess","actionIncomplete":false,"parameters":{"check_guess":"44"},"contexts":[],"metadata":{"intentId":"c863e1e2-c850-45d8-9b96-b57e0b1ee77e","webhookUsed":"true","webhookForSlotFillingUsed":"false","intentName":"provide_guess"},"fulfillment":{"speech":"","messages":[{"type":0,"speech":""}]},"score":1},"status":{"code":200,"errorType":"success"},"sessionId":"ff2e0c97-552b-40d3-8f06-32e612476897"} 2017-04-30T19:00:31.903553+00:00 app[web.1]: postSwitch {"id":"sw1","state":"on","name":"Koko's Lamp"} 2017-04-30T19:00:31.907017+00:00 heroku[router]: at=info method=POST path="/API/switches/sw1?password=123456" host=myjsonparser.herokuapp.com request_id=5a7a2c31-9ce5-4b02-9bac-bcef55ad6818 fwd="54.224.155.160" dyno=web.1 connect=1ms service=5ms status=200 bytes=253 protocol=https

問題是在兩種情況下都發生postSwitch {}。

這是Google Actions始終可以工作的方式，我只需要工作邏輯以便每次都解析json並僅在找到check_guess時作出反應？ 還是有一種方法可以控制Google Actions API發出的webhook帖子，以便僅在通過包含參數check_guess的值來完全填充該操作時才發布它？

1 個解決方案

解決方案1
 3 已采納  2017-05-01 11:41:24

您只能設置一個webhook（一個靜態URL），該Webhook將被API.AI觸發的所有操作調用。 盡管您將需要解析JSON（使用node.js，但JSON.parse（）並不困難），但您應該使用result.action字段，而不是試圖弄清楚設置了哪些參數。 這將與您在API.AI中設置的“操作”字段相對應。

當然，這假設您已選中了Webhook框以進行操作。 如果沒有，您將根本不會接到網絡電話。

因此，例如，將起始意圖配置如下：

在此處輸入圖片說明

它將將此JSON發送到您的webhook。 


{
 "originalRequest": {
  "source": "google",
  "data": {
   "surface": {
    "capabilities": [
     {
      "name": "actions.capability.AUDIO_OUTPUT"
     }
    ]
   },
   "inputs": [
    {
     "arguments": [],
     "intent": "assistant.intent.action.MAIN",
     "raw_inputs": [
      {
       "query": "talk to number genie",
       "input_type": 2,
       "annotation_sets": []
      }
     ]
    }
   ],
   "user": {
    "user_id": "kQmX8nX9ovcS9jfb3WKmwLk9YFlHGZH05YGbc8muNI8=",
    "permissions": []
   },
   "device": {
    "locale": "en-US"
   },
   "is_in_sandbox": true,
   "conversation": {
    "conversation_id": "1493637016599",
    "type": 1
   }
  }
 },
 "id": "9444bfe4-3c23-487a-84e7-fcbf1708d9e3",
 "timestamp": "2017-05-01T11:10:16.694Z",
 "lang": "en",
 "result": {
  "source": "agent",
  "resolvedQuery": "GOOGLE_ASSISTANT_WELCOME",
  "speech": "",
  "action": "generate_answer",
  "actionIncomplete": false,
  "parameters": {},
  "contexts": [
   {
    "name": "game",
    "parameters": {},
    "lifespan": 5
   },
   {
    "name": "google_assistant_welcome",
    "parameters": {},
    "lifespan": 0
   },
   {
    "name": "actions_capability_audio_output",
    "parameters": {},
    "lifespan": 0
   }
  ],
  "metadata": {
   "intentId": "56da4637-0419-46b2-b851-d7bf726b1b1b",
   "webhookUsed": "true",
   "webhookForSlotFillingUsed": "false",
   "intentName": "start_game"
  },
  "fulfillment": {
   "speech": "",
   "messages": [
    {
     "type": 0,
     "speech": ""
    }
   ]
  },
  "score": 1
 },
 "status": {
  "code": 200,
  "errorType": "success"
 },
 "sessionId": "1493637016599"
}

雖然Provide_guess意圖可能是這樣配置的

Provide_guess屏幕截圖

並將此JSON提供給webhook： 


{
 "originalRequest": {
  "source": "google",
  "data": {
   "surface": {
    "capabilities": [
     {
      "name": "actions.capability.AUDIO_OUTPUT"
     }
    ]
   },
   "inputs": [
    {
     "arguments": [
      {
       "raw_text": "42",
       "text_value": "42",
       "name": "text"
      }
     ],
     "intent": "assistant.intent.action.TEXT",
     "raw_inputs": [
      {
       "query": "42",
       "input_type": 2,
       "annotation_sets": []
      }
     ]
    }
   ],
   "user": {
    "user_id": "kQmX8nX9ovcS9jfb3WKmwLk9YFlHGZH05YGbc8muNI8=",
    "permissions": []
   },
   "device": {
    "locale": "en-US"
   },
   "is_in_sandbox": true,
   "conversation": {
    "conversation_token": "[\"_actions_on_google_\",\"game\"]",
    "conversation_id": "1493637749915",
    "type": 2
   }
  }
 },
 "id": "09997ef5-5c0f-4c60-a69f-af06d6e4e3f5",
 "timestamp": "2017-05-01T11:22:34.377Z",
 "lang": "en",
 "result": {
  "source": "agent",
  "resolvedQuery": "42",
  "speech": "",
  "action": "check_guess",
  "actionIncomplete": false,
  "parameters": {
   "guess": "42"
  },
  "contexts": [
   {
    "name": "game",
    "parameters": {
     "guess.original": "42",
     "guess": "42"
    },
    "lifespan": 5
   },
   {
    "name": "_actions_on_google_",
    "parameters": {
     "guessCount": 0,
     "printed": "Welcome back to Number Genie. I'm thinking of a number from %s to %s. What's your first guess?",
     "guess.original": "42",
     "answer": 74,
     "guess": "42",
     "lastPrompt": "Welcome back to Number Genie. I'm thinking of a number from %s to %s. What's your first guess?",
     "steamSoundCount": 0,
     "fallbackCount": 0
    },
    "lifespan": 99
   },
   {
    "name": "actions_capability_audio_output",
    "parameters": {
     "guess.original": "42",
     "guess": "42"
    },
    "lifespan": 0
   }
  ],
  "metadata": {
   "intentId": "1e46ffc2-651f-4ac0-a54e-9698feb88880",
   "webhookUsed": "true",
   "webhookForSlotFillingUsed": "false",
   "intentName": "provide_guess"
  },
  "fulfillment": {
   "speech": "",
   "messages": [
    {
     "type": 0,
     "speech": ""
    }
   ]
  },
  "score": 1
 },
 "status": {
  "code": 200,
  "errorType": "success"
 },
 "sessionId": "1493637749915"
}

在您的代碼中，您將在postSwitch()方法中檢查result.action的值，然后可以基於此操作在您的終端上選擇確切的操作checkGuess()基於注釋掉的代碼，可以是generateAnswer()或checkGuess() ） 。

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