Dialogflow（dialogflow_v2beta1）添加时区以检测文本意图python答案

【问题标题】：Dialogflow (dialogflow_v2beta1) adding timezone to detect text intent pythonDialogflow（dialogflow_v2beta1）添加时区以检测文本意图python
【发布时间】：2022-01-15 17:24:05
【问题描述】：

希望一切都好

我正在为 whatsapp 制作一个提醒机器人。在我打了一夜和今天几乎一整天的头之后，我决定寻求帮助。

有一件事，这些文档对于对话流来说真的没用，而且我在 StackOverflow 上找到的大多数文档链接现在都重定向了。

我一直在尝试设置时区，因为如果我不添加时区对话流假定它是我在那里设置的 (GMT+2)。

注意：我打开了 beta API 箭头键。

假设我用 ngrok 将它发布到我的烧瓶应用程序中。

{
   "number":"258xx",
   "timestamp":1642262883085,
   "text":"Ljgl"
}

以前，我是在计算时间差并将其存储到数据库中。然后我会玩很多数学游戏，我设法得到正确的时差时间。唯一的问题是：

如果有人在 10:36 (UTC+1) 向我发送消息，而我的时间是 11:35 (UTC+2)，则 dialogflow 会假定时间是第二天的 10:35。所以这意味着，我需要通过消息传递时区，以 10:36 为例，以“欧洲/华沙”为例，所以现在它仍然指的是今天而不是第二天。

所以我现在一直在尝试直接发送到对话流。我在firestore中有用户的时区，我检索了它，例如。 '非洲/马普托'。

所以检查后，您需要添加时区作为查询参数。

GOOGLE_APPLICATION_CREDENTIALS = "something.json"
DIALOGFLOW_PROJECT_ID = 'project-id'
DIALOGFLOW_LANGUAGE_CODE = 'en-GB'

def add_timezone():
    resp = request.get_json(force=True)
    print(resp)

    whatsapp_to = resp['number']
    SESSION_ID = f'appname',{whatsapp_to}'


    phone_number = "+" + whatsapp_to
    text_to_be_analyzed = resp['text']

    session_client = dialogflow.SessionsClient(credentials=GOOGLE_APPLICATION_CREDENTIALS) #took me a while to figure this out thanks to another post on StackOverflow -> nothing else worked...

    session = session_client.session_path(DIALOGFLOW_PROJECT_ID, SESSION_ID)

    text_input = dialogflow.types.TextInput(text=text_to_be_analyzed, language_code=DIALOGFLOW_LANGUAGE_CODE)

    query_input = dialogflow.types.QueryInput(text=text_input) #not used in v2beta1 i think
    #get timezone here (removed code as you don't have access to db)
    timezone = "Europe/Warsaw"
    # query_params = dialogflow.types.QueryParameters.time_zone(timezone) #tried never worked
    payload = {
        "session": session,
        'query_input':
            {
                "text": text_input
            },
        'query_params':
            {
                "time_zone": timezone
            }
    }
    response = session_client.detect_intent(payload)

它在响应时卡住了。过了一会儿它会抛出这个错误：

[2022-01-15 19:21:15,194] ERROR in app: Exception on /timezone [POST]
Traceback (most recent call last):
  File "C:\Users\Lenovo X260\PycharmProjects\whatsapp_bot\venv\lib\site-packages\google\api_core\grpc_helpers.py", line 67, in error_remapped_callable
    return callable_(*args, **kwargs)
  File "C:\Users\Lenovo X260\PycharmProjects\whatsapp_bot\venv\lib\site-packages\grpc\_channel.py", line 946, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "C:\Users\Lenovo X260\PycharmProjects\whatsapp_bot\venv\lib\site-packages\grpc\_channel.py", line 849, in _end_unary_response_blocking
    raise _InactiveRpcError(state)
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
    status = StatusCode.UNAVAILABLE
    details = "Getting metadata from plugin failed with error: 'str' object has no attribute 'before_request'"
    debug_error_string = "{"created":"@1642267275.196000000","description":"Getting metadata from plugin failed with error: 'str' object has no attribute 'before_request'","file":"src/core/lib/security/credentials/plugin/plugin_credentials.cc","file_line":92,"grpc_status":14}"
>

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Users\Lenovo X260\PycharmProjects\whatsapp_bot\venv\lib\site-packages\google\api_core\retry.py", line 189, in retry_target
    return target()
  File "C:\Users\Lenovo X260\PycharmProjects\whatsapp_bot\venv\lib\site-packages\google\api_core\grpc_helpers.py", line 69, in error_remapped_callable
    six.raise_from(exceptions.from_grpc_error(exc), exc)
  File "<string>", line 3, in raise_from
google.api_core.exceptions.ServiceUnavailable: 503 Getting metadata from plugin failed with error: 'str' object has no attribute 'before_request'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Users\Lenovo X260\PycharmProjects\whatsapp_bot\venv\lib\site-packages\flask\app.py", line 2073, in wsgi_app
    response = self.full_dispatch_request()
  File "C:\Users\Lenovo X260\PycharmProjects\whatsapp_bot\venv\lib\site-packages\flask\app.py", line 1518, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "C:\Users\Lenovo X260\PycharmProjects\whatsapp_bot\venv\lib\site-packages\flask\app.py", line 1516, in full_dispatch_request
    rv = self.dispatch_request()
  File "C:\Users\Lenovo X260\PycharmProjects\whatsapp_bot\venv\lib\site-packages\flask\app.py", line 1502, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
  File "C:\Users\Lenovo X260\PycharmProjects\whatsapp_bot\remindme.py", line 70, in add_timezone
    response = session_client.detect_intent(payload)
  File "C:\Users\Lenovo X260\PycharmProjects\whatsapp_bot\venv\lib\site-packages\google\cloud\dialogflow_v2beta1\services\sessions\client.py", line 545, in detect_intent
    response = rpc(request, retry=retry, timeout=timeout, metadata=metadata,)
  File "C:\Users\Lenovo X260\PycharmProjects\whatsapp_bot\venv\lib\site-packages\google\api_core\gapic_v1\method.py", line 145, in __call__
    return wrapped_func(*args, **kwargs)
  File "C:\Users\Lenovo X260\PycharmProjects\whatsapp_bot\venv\lib\site-packages\google\api_core\retry.py", line 286, in retry_wrapped_func
    return retry_target(
  File "C:\Users\Lenovo X260\PycharmProjects\whatsapp_bot\venv\lib\site-packages\google\api_core\retry.py", line 204, in retry_target
    six.raise_from(
  File "<string>", line 3, in raise_from
google.api_core.exceptions.RetryError: Deadline of 220.0s exceeded while calling target function, last exception: 503 Getting metadata from plugin failed with error: 'str' object has no attribute 'before_request'
127.0.0.1 - - [15/Jan/2022 19:21:15] "POST /timezone HTTP/1.1" 500 -

感谢您的帮助:)

编辑 1：我又试了一次，这次我尝试了新的东西：

    timezone = profile['time_zone']
    session_client = dialogflow.SessionsClient(credentials=GOOGLE_APPLICATION_CREDENTIALS)
    session = session_client.session_path(DIALOGFLOW_PROJECT_ID, SESSION_ID)
    text_input = dialogflow.types.TextInput(text=text_to_be_analyzed, language_code=DIALOGFLOW_LANGUAGE_CODE)
    query_input = dialogflow.types.QueryInput(text=text_input)

    query_params = dialogflow.types.QueryParameters(timeZone=timezone)
    response = session_client.detect_intent(session=session, query_input=query_input, query_params=query_params)

但是错误： ValueError: Unknown field for QueryParameters: timeZone 见这里：https://cloud.google.com/dialogflow/es/docs/reference/rest/v2beta1/QueryParameters

文档有字段 timeZone？那我该怎么办呢？

{
  "timeZone": string,
  ...

编辑2：所以它是python所以我猜测并将timeZone设置为time_zone并且错误消失了。现在它显示：

    timezone = profile['time_zone']
    session_client = dialogflow.SessionsClient(credentials=GOOGLE_APPLICATION_CREDENTIALS)
    session = session_client.session_path(DIALOGFLOW_PROJECT_ID, SESSION_ID)
    text_input = dialogflow.types.TextInput(text=text_to_be_analyzed, language_code=DIALOGFLOW_LANGUAGE_CODE)
    query_input = dialogflow.types.QueryInput(text=text_input)

    query_params = dialogflow.types.QueryParameters(time_zone=timezone)
    response = session_client.detect_intent(session=session, query_input=query_input, query_params=query_params)

错误：

TypeError: detect_intent() got an unexpected keyword argument 'query_params'

好消息是 -> 我现在可以使用查询参数并弄清楚如何向它们添加时区。现在的问题在于如何真正实现它的意图。

编辑 4：凭证没有奏效。所以我用它作为环境变量。所以现在至少没有 query_params 我不再得到错误： 503 Getting metadata from plugin failed with error: 'str' object has no attribute 'before_request'

修复：

GOOGLE_APPLICATION_CREDENTIALS = "secret.json"
DIALOGFLOW_PROJECT_ID = 'project-id'
DIALOGFLOW_LANGUAGE_CODE = 'en-GB'
os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = GOOGLE_APPLICATION_CREDENTIALS

然后在客户端我不再传递凭据。

session_client = dialogflow.SessionsClient()

编辑 5：现在一切正常，但似乎没有读取 query_params。

timezone = 'America/New_York'
payload = {
                  "session": session,
                  "query_params": {
                      "time_zone": timezone
                  },
                  "query_input": {
                    "text": {
                      "text": text_to_be_analyzed,
                      "language_code": "en-GB"
                    }
                  }
                }
    response = session_client.detect_intent(payload)

我的时间是 GMT+2，所以说晚上 7 点（结束）会在第二天晚上 7 点（对话流）。但是，纽约仍然不是晚上 7 点，所以它应该给我与今天相同的日期。这意味着它仍然假设我的时区。

有什么建议吗？

【问题讨论】：

标签： python flask dialogflow-es

【解决方案1】：

我终于明白了。

GOOGLE_APPLICATION_CREDENTIALS = "secret.json"
DIALOGFLOW_PROJECT_ID = 'project-id'
DIALOGFLOW_LANGUAGE_CODE = 'en-GB'
os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = GOOGLE_APPLICATION_CREDENTIALS
SESSION_ID = f'your_unique_session_id' #to maintain context it should be unique to each user e.g. phone number
session_client = dialogflow.SessionsClient()
session = session_client.session_path(DIALOGFLOW_PROJECT_ID, SESSION_ID)
timezone = 'America/New_York' #get from your db etc.
text_to_be_analyzed = 'legendaryace' #get from request
payload = {
              "session": session,
              "query_params": {
                  "time_zone": timezone
              },
              "query_input": {
                "text": {
                  "text": text_to_be_analyzed,
                  "language_code": "en-GB" #if diff don't forget to change
                }
              }
            }
try:
    response = session_client.detect_intent(payload)
    print("Query text:", response.query_result.query_text)
    print("Detected intent:", response.query_result.intent.display_name)
    print("Detected intent confidence:", response.query_result.intent_detection_confidence)
    print("Fulfillment text:", response.query_result.fulfillment_text)
except:
    #do your thing

这是我生命中使用 python 为 Dialogflow 确定时区的 3 天 :) 希望你不必经历同样的事情 :)

【讨论】：