从Python中的后续意图获取Dialogflow上下文参数 [英] Get Dialogflow context parameters from a follow up intent in Python
问题描述
我在python中创建了一个flask应用程序，用于将文本发送到Dialogflow，以便检测意图并从中返回实现文本作为响应.
I created a flask app in python to send text to Dialogflow in order to detect the intent and return the fulfillment text as response from it.
然后，我将其扩展为还沿着履行文本从查询结果中返回某个参数，该参数也可以正常工作，我得到的像这样:
Then I extended this to also return along the fulfillment text a certain parameter from the query result which also works and I get it like this:
orderid = (response.query_result.parameters.fields["ordernumber"])
orderid_json = json.loads(MessageToJson(orderid))
现在，当我添加跟踪意图时，我的问题就开始了，因为由于参数是上下文的一部分，因此我无法读出该参数.
Now my problems started when I added a follow up intent because then I cannot read out the parameter since it's part of the context.
针对我的意图 order.status 的RAW API响应如下:
The RAW API response for the my intent order.status looks like this:
{
"responseId": "7ae77c38-501a-4079-b0e0-24807669c826-83ffff32",
"queryResult": {
"queryText": "check my order 456789",
"action": "order.status",
"parameters": {
"ordernumber": "456789"
},
"allRequiredParamsPresent": true,
"fulfillmentText": "Uh-oh, your order seems to be delayed and the exptected delivery date is: 29.06.2020Would you like to talk with an agent about this delay?",
"fulfillmentMessages": [
{
"text": {
"text": [
"Uh-oh, your order seems to be delayed and the exptected delivery date is: 29.06.2020Would you like to talk with an agent about this delay?"
]
}
}
],
"outputContexts": [
{
"name": "projects/voicebotdemo-hdnmue/agent/sessions/5ea2f271-1e00-5041-5f23-f05c73bd1a95/contexts/orderstatus-followup",
"lifespanCount": 2,
"parameters": {
"ordernumber.original": "456789",
"ordernumber": "456789"
}
},
{
"name": "projects/voicebotdemo-hdnmue/agent/sessions/5ea2f271-1e00-5041-5f23-f05c73bd1a95/contexts/ordernumber",
"lifespanCount": 5,
"parameters": {
"ordernumber": "456789",
"ordernumber.original": "456789"
}
}
],
"intent": {
"name": "projects/voicebotdemo-hdnmue/agent/intents/fcb8a584-5ca1-41c7-b67e-34a35dd53602",
"displayName": "order.status"
},
"intentDetectionConfidence": 0.8599001,
"diagnosticInfo": {
"webhook_latency_ms": 156
},
"languageCode": "en",
"sentimentAnalysisResult": {
"queryTextSentiment": {
"score": -0.3,
"magnitude": 0.3
}
}
},
"webhookStatus": {
"message": "Webhook execution successful"
}
}
以及对后续意图 order.status-yes 的响应，如下所示:
and the response for the follow-up intent order.status-yes like this:
{
"responseId": "8c63e43d-ff01-430b-becf-be8f8fa40839-83ffff32",
"queryResult": {
"queryText": "why not",
"action": "orderstatus.orderstatus-yes",
"parameters": {},
"allRequiredParamsPresent": true,
"fulfillmentText": "Routing you to an agent now!",
"fulfillmentMessages": [
{
"text": {
"text": [
"Routing you to an agent now!"
]
}
}
],
"outputContexts": [
{
"name": "projects/voicebotdemo-hdnmue/agent/sessions/5ea2f271-1e00-5041-5f23-f05c73bd1a95/contexts/ordernumber",
"lifespanCount": 5,
"parameters": {
"ordernumber": "456789",
"ordernumber.original": "456789"
}
},
{
"name": "projects/voicebotdemo-hdnmue/agent/sessions/5ea2f271-1e00-5041-5f23-f05c73bd1a95/contexts/orderstatus-followup",
"lifespanCount": 1,
"parameters": {
"ordernumber": "456789",
"ordernumber.original": "456789"
}
}
],
"intent": {
"name": "projects/voicebotdemo-hdnmue/agent/intents/1a3a01da-cdf4-4dc6-b0d6-4c28c9a0bca7",
"displayName": "order.status - yes"
},
"intentDetectionConfidence": 1,
"languageCode": "en",
"sentimentAnalysisResult": {
"queryTextSentiment": {
"score": 0.3,
"magnitude": 0.3
}
}
}
}
对后续意图的响应不包含任何参数. 因此，我的问题是如何从"outputContexts" 而不是"queryResult" 读出 ordernumber 参数?
The response for the follow-up intent does not contain any parameters. So, my question is how can I read out the ordernumber parameter from "outputContexts" instead of "queryResult" ?
这是我的完整剧本:
import json
import os
import dialogflow_v2
from flask import Flask
from flask import request
from google.api_core.exceptions import InvalidArgument
from google.protobuf.json_format import MessageToJson
proxy = 'http://10.7.111.18:8080'
os.environ['http_proxy'] = proxy
os.environ['HTTP_PROXY'] = proxy
os.environ['https_proxy'] = proxy
os.environ['HTTPS_PROXY'] = proxy
os.environ["GOOGLE_APPLICATION_CREDENTIALS"] = 'private_key_easteregg.json'
DIALOGFLOW_PROJECT_ID = 'voicebotdemo-hdnmue'
DIALOGFLOW_LANGUAGE_CODE = 'en'
SESSION_ID = 'me'
app = Flask(__name__)
@app.route('/call/user_input_flask', methods=['GET', 'POST', 'PUT', 'DELETE'])
def user_input_flask():
#req_data = request.get_json(dict)
input_text_from_web = request.form.get('input', '')
session_client = dialogflow_v2.SessionsClient()
session = session_client.session_path(DIALOGFLOW_PROJECT_ID, SESSION_ID)
text_input = dialogflow_v2.types.TextInput(text=input_text_from_web, language_code=DIALOGFLOW_LANGUAGE_CODE)
query_input = dialogflow_v2.types.QueryInput(text=text_input)
query_parameter = dialogflow_v2.types.QueryParameters()
try:
response = session_client.detect_intent(session=session, query_input=query_input)
orderid = (response.query_result.parameters.fields["ordernumber"])
orderid_json = json.loads(MessageToJson(orderid))
except InvalidArgument:
raise
return {
"response": response.query_result.fulfillment_text,
"ordernumber": orderid_json
}
app.run(host='0.0.0.0', port=5002, debug=True)
谢谢！
推荐答案
我可以使用get()函数读取参数ordernumber，如下所示:
I thing you could read the parameter ordernumber with get() function, something like this:
outCnt = query_result.get('outputContexts')
outCnt = outCnt[2]
# Second element of 'OutputContexts' in query_result (a Multidict) contains parameter 'ordernumber'
ordernumber = outCnt.get('parameters').get('ordernumber')
这篇关于从Python中的后续意图获取Dialogflow上下文参数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
