如何在Dialogflow v2 WebhookResponse中发送FulfillmentMessages?

时间:2018-10-22 09:27:58

标签: go webhooks dialogflow actions-on-google google-assistant-sdk

我正在尝试将实现消息作为Dialogflow v2 API WebhookResponse的一部分发回。

这有效:

仅发送FulfillmentText作为响应的一部分就可以正常工作(在Google Simulator上的“ Actions”中测试应用程序,并使用正确的FulfillmentText值):

func random(c *gin.Context, wr dialogflow.WebhookRequest)  {
    log.Println("Random action detected")

    fullfillment := dialogflow.WebhookResponse{
        FulfillmentText: "foobar",
    }

    c.JSON(http.StatusOK, fullfillment)
}

正在发送回的JSON:

{"fulfillment_text":"foobar"}

模拟器中的响应:

{
    "conversationToken": "[]",
    "finalResponse": {
    "richResponse": {
        "items": [
            {
                "simpleResponse": {
                    "textToSpeech": "foobar"
                }
            }
        ]
    }
},
    "responseMetadata": {
    "status": {
        "message": "Success (200)"
    },
    "queryMatchInfo": {
        "queryMatched": true,
            "intent": "24db2044-f2fb-4607-9897-1de757990622"
    }
}
}

这不是:

但是,一旦我尝试发回任何实际消息(文本消息,基本卡,简单响应等)作为FulfillmentMessages的一部分,则测试失败:

func random(c *gin.Context, wr dialogflow.WebhookRequest)  {
    log.Println("Random action detected")

    textMessage := dialogflow.Intent_Message_Text{
        Text: []string{"foo", "bar"},
    }

    fullfillment := dialogflow.WebhookResponse{
        FulfillmentText: "foobar",
        FulfillmentMessages: []*dialogflow.Intent_Message{
            {
                Message: &dialogflow.Intent_Message_Text_{
                    Text: &textMessage,
                },
            },
        },
    }

    c.JSON(http.StatusOK, fullfillment)
}

正在发送回的JSON:

{
    "fulfillment_text":"foobar",
    "fulfillment_messages":[
        {
            "Message":{
                "Text":{
                    "text":[
                        "foo",
                        "bar"
                    ]
                }
            }
        }
    ]
}

模拟器中的响应:

{
    "responseMetadata": {
    "status": {
        "code": 10,
            "message": "Failed to parse Dialogflow response into AppResponse because of empty speech response",
            "details": [
            {
                "@type": "type.googleapis.com/google.protobuf.Value",
                "value": "{\"id\":\"917d8ac3-3f0f-4953-b556-4dec27b8bbb8\",\"timestamp\":\"2018-10-22T09:00:45.488Z\",\"lang\":\"en-us\",\"result\":{},\"alternateResult\":{},\"status\":{\"code\":206,\"errorType\":\"partial_content\",\"errorDetails\":\"Webhook call failed. Error: Failed to parse webhook JSON response: Cannot find field: Message in message google.cloud.dialogflow.v2.Intent.Message.\"},\"sessionId\":\"ABwppHHSbrqOCPRp_DAPDLepL6YjSNpbzQ61CIBDTMl99rtRqfaWq-y0HtExb1--k6bcaL4CACQMeiVF3p-x5qk\"}"
            }
        ]
    }
}
}

我假设我的Web服务发送回的JSON是错误的,因为它作为响应的一部分返回... Cannot find field: Message ...。 我虽然使用了适用于Dialogflow的Golang SDK(https://godoc.org/google.golang.org/genproto/googleapis/cloud/dialogflow/v2#WebhookResponse

这已在Google模拟器上的“动作”中进行了测试,并在Pixel 2上运行了实际的Google助手。

有人能指出正确的方向吗?

1 个答案:

答案 0 :(得分:0)

正如您所说,问题在于响应的json结构。以下是有效的webhook响应

{
"fulfillmentMessages": [
    {
        "text": {
            "text": [
                "foo",
                "bar"
            ]
        }
    }
],
"fulfillmentText": "foobar",
"source": "Test"
}
    实际结构中没有
  1. 消息
  2. fullfillment_text 应该为 fulfillmentText
  3. 外部文本应该是 text
  4. fullfillment_messages 应该是 fulfillmentMessages