无法使用 Google texttoaudio API 设置凭据

Question

我能够为 Google 的翻译设置凭据，但是使用 texttospeech 我遇到了很多麻烦。首先，我无法将凭据作为 json 文件获取，而是将其作为字符串获取。我没能找到其他人的凭据是字符串，每个人都有一个 json 文件。我将字符串转换为 json 文件，但我认为这没有帮助，因为它们 json 对象似乎必须是字典。无论如何，当我尝试这个时：

from google.oauth2 import service_account

key1 = 'key.json'
credentials = service_account.Credentials.from_service_account_file(key1)
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/IPython/core/interactiveshell.py", line 3267, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-13-c7d030662a35>", line 1, in <module>
    credentials = service_account.Credentials.from_service_account_file(key1)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/google/oauth2/service_account.py", line 209, in from_service_account_file
    filename, require=['client_email', 'token_uri'])
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/google/auth/_service_account_info.py", line 73, in from_filename
    return data, from_dict(data, require=require)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/google/auth/_service_account_info.py", line 46, in from_dict
    missing = keys_needed.difference(six.iterkeys(data))
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/six.py", line 575, in iterkeys
    return iter(d.keys(**kw))
AttributeError: 'str' object has no attribute 'keys'

当我尝试此代码时，会发生以下情况：

os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = 'key.json'
client = texttospeech.TextToSpeechClient()
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/IPython/core/interactiveshell.py", line 3267, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-14-d30e5cd41087>", line 2, in <module>
    client = texttospeech.TextToSpeechClient()
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/google/cloud/texttospeech_v1/gapic/text_to_speech_client.py", line 159, in __init__
    address=api_endpoint, channel=channel, credentials=credentials
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/google/cloud/texttospeech_v1/gapic/transports/text_to_speech_grpc_transport.py", line 61, in __init__
    channel = self.create_channel(address=address, credentials=credentials)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/google/cloud/texttospeech_v1/gapic/transports/text_to_speech_grpc_transport.py", line 91, in create_channel
    address, credentials=credentials, scopes=cls._OAUTH_SCOPES, **kwargs
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/google/api_core/grpc_helpers.py", line 177, in create_channel
    credentials, _ = google.auth.default(scopes=scopes)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/google/auth/_default.py", line 305, in default
    credentials, project_id = checker()
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/google/auth/_default.py", line 165, in _get_explicit_environ_credentials
    os.environ[environment_vars.CREDENTIALS])
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/google/auth/_default.py", line 102, in _load_credentials_from_file
    credential_type = info.get('type')
AttributeError: 'str' object has no attribute 'get'

我认为这是因为我的 json 对象不是字典而是字符串。但是 Google 给我的密钥是一个字符串而不是 json 文件，所以我真的不知道在这里做什么。而且他们的文档太难理解了。

Answer 1

当你说你有一个字符串时，你指的是密钥 ID 吗？您仍然需要与该密钥关联的 json 文件。

要创建新的 json 文件，请转至 Google Cloud Console -> IAM & Admin -> Service Accounts。 Select 您的一个服务帐户，然后单击 "Create Key"，这会将密钥下载为 json 文件。只能下载一次

无法使用 Google texttoaudio API 设置凭据

Unable to set credentials with Google texttoaudio API

google-text-to-speech