38 lines
957 B
Python
38 lines
957 B
Python
# pylint: disable=too-few-public-methods
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from datetime import datetime
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from flask import Flask
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from flask_smorest import Api
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from config.api_settings import DefaultSettings
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class IsSingletonException(Exception):
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pass
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class Application:
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"""
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This is a singleton that can be accessed using get_instance()
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It has 2 properties
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- app: Used for WSGI servers and such
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- api: Used for Blueprints
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"""
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__instance = None
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app = Flask(__name__)
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app.config.from_object(DefaultSettings)
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api = None
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alive_since = None
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@staticmethod
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def get_instance():
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if Application.__instance is None:
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Application()
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return Application.__instance
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def __init__(self):
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if Application.__instance is not None:
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raise IsSingletonException("This class is a singleton")
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Application.__instance = self
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self.api = Api(self.app)
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self.alive_since = datetime.now()
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