获取Pyrebase HTTPError信息

Question

在尝试创建一个已经是用户的新用户时，使用Firebase身份验证的pyrebase包装器，pyrebase会将google API响应包装在HTTPError消息中。但是，当我尝试捕获此异常时，它不会将HTTPError识别为异常。我可以通过使用下面更详细的expect Exception as e显示来访问该异常。

代码：

config = {
  "apiKey": os.environ.get('WEB_API_KEY'),
  "authDomain": "project.firebaseapp.com",
  "databaseURL": "https://project.firebaseio.com",
  "storageBucket": "project.appspot.com",
  "serviceAccount": os.environ.get('FIREBASE_APPLICATION_CREDENTIALS')
}

firebase = pyrebase.initialize_app(config)

auth = firebase.auth()

# Attempt to register a user that already exists
try:
    user = auth.create_user_with_email_and_password('myemail@email.com', 'mypassword')
except HTTPError as e:
    print('Handling HTTPError:', e)

这将输出：

Traceback (most recent call last):
  File "<console>", line 3, in <module>
NameError: name 'HTTPError' is not defined

如果我采取更通用的方法并使用以下命令，我可以捕获错误：

try:
    user = auth.create_user_with_email_and_password('myemail@email.com', 'mypassword')
except Exception as e:
    print(e.args)

然后，这将优雅地打印异常：

(HTTPError('400 Client Error: Bad Request for url: https://www.googleapis.com/identitytoolkit/v3/relyingparty/signupNewUser?key=<WEB_API_KEY>'), '{\n  "error": {\n    "code": 400,\n    "message": "EMAIL_EXISTS",\n    "errors": [\n      {\n        "message": "EMAIL_EXISTS",\n        "domain": "global",\n        "reason": "invalid"\n      }\n    ]\n  }\n}\n')

这给了我信息，但它是一个字符串。

如何访问异常消息中显示的响应JSON？

谢谢!

Answer 1

json.loads(e.args[1])['error']['message']

这将为您提供结果：EMAIL_EXISTS