发出请求时Azure Form Recognizer错误属性错误

Question

我正在尝试遵循表单识别器API的文档，特别是recognizer的示例：

https://docs.microsoft.com/en-us/azure/cognitive-services/form-recognizer/quickstarts/client-library?pivots=programming-language-python&tabs=windows

我正在尝试以下代码：

import sys
import logging
from azure.ai.formrecognizer import FormRecognizerClient
from azure.core.credentials import AzureKeyCredential
import os
import azure.ai.formrecognizer

endpoint = r"https://form-recognizer-XXXXX-test.cognitiveservices.azure.com/"
form_recognizer_client = FormRecognizerClient(endpoint=endpoint, credential="XXXXXXXXX")
receiptUrl = "https://raw.githubusercontent.com/Azure/azure-sdk-for-python/master/sdk/formrecognizer/azure-ai-formrecognizer/tests/sample_forms/receipt/contoso-receipt.png"

poller = form_recognizer_client.begin_recognize_receipts_from_url(receiptUrl)
receipts = poller.result()

并得到这个错误：

    request.http_request.headers[self._name] = self._credential.key

AttributeError: 'str' object has no attribute 'key'

我看到的不同之处在于，在示例中，端点和键被称为类的属性：

form_recognizer_client = FormRecognizerClient(endpoint=self.endpoint, credential=AzureKeyCredential(self.key))

但我看不出“自我”在哪里。值不是字符串的来源和原因。

Answer 1

我同意在快速入门中有点不清楚这个键是从哪里来的。在这个例子中，API键被设置为一个类变量( self就来自这个变量)，但是你不需要这样做就可以让你的代码正常工作。

为了认证成功，必须将字符串接口密钥"XXXXXXXXX“封装在凭据类AzureKeyCredential中。我已经更新了你下面的代码，请让我知道它是否适用于你：

import sys
import logging
from azure.ai.formrecognizer import FormRecognizerClient
from azure.core.credentials import AzureKeyCredential
import os
import azure.ai.formrecognizer

endpoint = r"https://form-recognizer-XXXXX-test.cognitiveservices.azure.com/"
form_recognizer_client = FormRecognizerClient(endpoint=endpoint, 
    credential=AzureKeyCredential("XXXXXXXXX"))
receiptUrl = "https://raw.githubusercontent.com/Azure/azure-sdk-for- 
    python/master/sdk/formrecognizer/azure-ai- 
    formrecognizer/tests/sample_forms/receipt/contoso-receipt.png"

poller = form_recognizer_client.begin_recognize_receipts_from_url(receiptUrl)
receipts = poller.result()