我已经制作了简单的Flask扩展名，其中包含Google API Client for Python：
where (select ...) = ANY(assemblies)
在我的oauth2回调视图中，我通过调用基于凭据创建API客户端实例的class ProximityBeaconAPI:
'''
Simple Flask extension for accessing Google Proxmity Beacon API.
https://developers.google.com/resources/api-libraries/documentation/proximitybeacon/v1beta1/python/latest/
'''
def __init__(self, app=None, credentials=None):
if app:
self.init_app(app)
if credentials:
self.init_api(credentials)
def init_app(self, app):
'''
Initialize Flask app for extension
'''
self.app = app
self._project_id = app.config.PROJECT_ID
@property
def is_initialized(self):
'''
Checks if Proximity Beacon API is initialized.
:return: bool
'''
ctx = _app_ctx_stack.top
return hasattr(ctx, 'proximitybeaconapi')
def init_api(self, credentials):
''' Initialize Proximity Beacon API
:param credentials: google.oauth2.credentials.Credentials object
'''
proximitybeaconapi = discovery.build(
OAUTH2.API_NAME, OAUTH2.API_VERSION, credentials=credentials)
ctx = _app_ctx_stack.top
if ctx is not None:
if not hasattr(ctx, 'proximitybeaconapi'):
ctx.proximitybeaconapi = proximitybeaconapi
def get_utoken(self):
''' Checks if for beacon with given name u_token attachment
is set.
:param beacon_name: name of the beacon
:param namespace: namespace
'''
beacon_name = self.get_default_auth_beacon_name()
ctx = _app_ctx_stack.top
namespace = self.get_default_project_namespace().split('/')[1]
namespaced_type = '{}/u_token'.format(namespace)
query = {
'beaconName': beacon_name,
'namespacedType': namespaced_type
}
resp = ctx.proximitybeaconapi.beacons().attachments().list(**query).execute()
b64_data = resp['attachments'][0]['data']
return self._base64_to_str(b64_data)
def is_utoken_valid(self, u_token):
''' Checks if recieved token is valid with current
u_token attachment.
:param u_token: incomming u_token
:return: True or False
'''
incomming_token = self._base64_to_str(u_token)
current_token = self.get_utoken()
return incomming_token == current_token
方法来初始化Google API：
init_api然后在另一个端点中，我调用使用初始化的早期客户端库的方法def init_api(self, credentials):
''' Initialize Proximity Beacon API
:param credentials: google.oauth2.credentials.Credentials object
'''
proximitybeaconapi = discovery.build(
OAUTH2.API_NAME, OAUTH2.API_VERSION, credentials=credentials)
ctx = _app_ctx_stack.top
if ctx is not None:
if not hasattr(ctx, 'proximitybeaconapi'):
ctx.proximitybeaconapi = proximitybeaconapi
。
我的端点
get_token def post(self):
data = api.payload
u_token = data.pop('u_token')
token = beaconapi.get_utoken()
# other code ...
利用客户端的方法：
get_utoken但是我遇到def get_utoken(self):
''' Checks if for beacon with given name u_token attachment
is set.
:param beacon_name: name of the beacon
:param namespace: namespace
'''
beacon_name = self.get_default_auth_beacon_name()
ctx = _app_ctx_stack.top # getting client from application context
# ...
response = ctx.proximitybeaconapi.beacons().attachments().list(**query)
return response
错误，尽管我早些时候在应用上下文中设置了此属性：
AttributeError: 'AppContext' object has no attribute 'proximitybeaconapi'
当我在调用最后一个端点时使用 File "/home/devaerial/Source/automoticz-server/automoticz/utils/beacons.py", line 61, in get_default_auth_beacon_name
response = ctx.proximitybeaconapi.beacons().list(q=query).execute()
AttributeError: 'AppContext' object has no attribute 'proximitybeaconapi'
设置ctx客户端实例时，proximitybeaconapi上下文似乎没有保存
我在这里做什么错了？
P.S：我正在遵循Flask官方文档中的this示例。