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new code examples for flask
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‎content/pages/examples/flask/flask-example-projects-code.markdown‎

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@@ -41,6 +41,17 @@ JavaScript plugin with the
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library. flask-phone-input is provided as open source under the
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[MIT license](https://github.com/miguelgrinberg/flask-phone-input/blob/1a1c227c044474ce0fe133493d7f8b0fb8312409/LICENSE).
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### flaskSaaS
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[flaskSaas](https://github.com/alectrocute/flaskSaaS) is a boilerplate
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starter project to build a software-as-a-service (SaaS) web application
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in [Flask](/flask.html), with [Stripe](/stripe.html) for billing. The
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boilerplate relies on many common Flask extensions such as
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[Flask-WTF](https://flask-wtf.readthedocs.io/en/latest/),
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[Flask-Login](https://flask-login.readthedocs.io/en/latest/),
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[Flask-Admin](https://flask-admin.readthedocs.io/en/latest/), and
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many others. The project is provided as open source under the
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[MIT license](https://github.com/alectrocute/flaskSaaS/blob/master/LICENSE).
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### Flasky
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[Flasky](https://github.com/miguelgrinberg/flasky) is a wonderful

‎content/pages/examples/flask/flask-globals-request.markdown‎

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```
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## Example 6 from newspie
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## Example 6 from flaskSaaS
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[flaskSaas](https://github.com/alectrocute/flaskSaaS) is a boilerplate
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starter project to build a software-as-a-service (SaaS) web application
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in [Flask](/flask.html), with [Stripe](/stripe.html) for billing. The
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boilerplate relies on many common Flask extensions such as
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[Flask-WTF](https://flask-wtf.readthedocs.io/en/latest/),
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[Flask-Login](https://flask-login.readthedocs.io/en/latest/),
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[Flask-Admin](https://flask-admin.readthedocs.io/en/latest/), and
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many others. The project is provided as open source under the
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[MIT license](https://github.com/alectrocute/flaskSaaS/blob/master/LICENSE).
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[**flaskSaaS / app / admin.py**](https://github.com/alectrocute/flaskSaaS/blob/master/app/./admin.py)
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```python
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# admin.py
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import os.path as op
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~~from flask import request, Response
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from werkzeug.exceptions import HTTPException
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from flask_admin import Admin
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from flask.ext.admin.contrib.sqla import ModelView
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from flask.ext.admin.contrib.fileadmin import FileAdmin
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from app import app, db
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from app.models import User
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admin = Admin(app, name='Admin', template_mode='bootstrap3')
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class ModelView(ModelView):
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def is_accessible(self):
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~~ auth = request.authorization or request.environ.get('REMOTE_USER') # workaround for Apache
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if not auth or (auth.username, auth.password) != app.config['ADMIN_CREDENTIALS']:
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raise HTTPException('', Response('You have to an administrator.', 401,
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{'WWW-Authenticate': 'Basic realm="Login Required"'}
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))
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return True
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# Users
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admin.add_view(ModelView(User, db.session))
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# Static files
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path = op.join(op.dirname(__file__), 'static')
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admin.add_view(FileAdmin(path, '/static/', name='Static'))
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## ... source file continues with no further request examples...
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```
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## Example 7 from newspie
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[NewsPie](https://github.com/skamieniarz/newspie) is a minimalistic news
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aggregator created with [Flask](/flask.html) and the
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[News API](https://newsapi.org/).
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```
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## Example 7 from sandman2
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## Example 8 from sandman2
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[sandman2](https://github.com/jeffknupp/sandman2)
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([project documentation](https://sandman2.readthedocs.io/en/latest/)
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and

‎content/pages/examples/flask/flask-globals-session.markdown‎

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```
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## Example 4 from flaskSaaS
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[flaskSaas](https://github.com/alectrocute/flaskSaaS) is a boilerplate
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starter project to build a software-as-a-service (SaaS) web application
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in [Flask](/flask.html), with [Stripe](/stripe.html) for billing. The
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boilerplate relies on many common Flask extensions such as
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[Flask-WTF](https://flask-wtf.readthedocs.io/en/latest/),
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[Flask-Login](https://flask-login.readthedocs.io/en/latest/),
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[Flask-Admin](https://flask-admin.readthedocs.io/en/latest/), and
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many others. The project is provided as open source under the
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[MIT license](https://github.com/alectrocute/flaskSaaS/blob/master/LICENSE).
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[**flaskSaaS / app / logger_setup.py**](https://github.com/alectrocute/flaskSaaS/blob/master/app/./logger_setup.py)
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```python
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# logger_setup.py
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:Example:
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>>> from website import logger
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>>> logger.info('event', foo='bar')
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**Levels**:
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- logger.debug('For debugging purposes')
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- logger.info('An event occured, for example a database update')
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- logger.warning('Rare situation')
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- logger.error('Something went wrong')
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- logger.critical('Very very bad')
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You can build a log incrementally as so:
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>>> log = logger.new(date='now')
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>>> log = log.bind(weather='rainy')
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>>> log.info('user logged in', user='John')
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'''
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import datetime as dt
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import logging
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from logging.handlers import RotatingFileHandler
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import pytz
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~~from flask import request, session
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from structlog import wrap_logger
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from structlog.processors import JSONRenderer
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from app import app
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# Set the logging level
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app.logger.setLevel(app.config['LOG_LEVEL'])
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# Remove the stdout handler
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app.logger.removeHandler(app.logger.handlers[0])
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TZ = pytz.timezone(app.config['TIMEZONE'])
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def add_fields(_, level, event_dict):
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''' Add custom fields to each record. '''
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now = dt.datetime.now()
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event_dict['timestamp'] = TZ.localize(now, True).astimezone(pytz.utc).isoformat()
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event_dict['level'] = level
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~~ if session:
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~~ event_dict['session_id'] = session.get('session_id')
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if request:
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try:
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event_dict['ip_address'] = request.headers['X-Forwarded-For'].split(',')[0].strip()
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except:
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event_dict['ip_address'] = 'unknown'
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return event_dict
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# Add a handler to write log messages to a file
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if app.config.get('LOG_FILENAME'):
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file_handler = RotatingFileHandler(filename=app.config['LOG_FILENAME'],
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maxBytes=app.config['LOG_MAXBYTES'],
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backupCount=app.config['LOG_BACKUPS'],
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mode='a',
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encoding='utf-8')
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file_handler.setLevel(logging.DEBUG)
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app.logger.addHandler(file_handler)
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# Wrap the application logger with structlog to format the output
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logger = wrap_logger(
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app.logger,
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processors=[
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## ... source file continues with no further session examples...
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```
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