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__init__.py
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__init__.py
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"""Flask application entrypoint"""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from flask import Flask
from flask_cors import CORS
from flask_compress import Compress
from flask_dropzone import Dropzone
import flask_monitoringdashboard as dashboard
from deepcell_label import config
from deepcell_label.blueprints import bp
from deepcell_label.models import db
compress = Compress() # pylint: disable=C0103
dropzone = Dropzone() # pylint: disable=C0103
class ReverseProxied(object):
"""Enable TLS for internal requests.
Found in: https://stackoverflow.com/questions/30743696
"""
def __init__(self, app):
self.app = app
def __call__(self, environ, start_response):
scheme = environ.get('HTTP_X_FORWARDED_PROTO')
if scheme:
environ['wsgi.url_scheme'] = scheme
return self.app(environ, start_response)
def create_app(**config_overrides):
"""Factory to create the Flask application"""
app = Flask(__name__)
CORS(app)
app.config.from_object(config)
# apply overrides
app.config.update(config_overrides)
app.wsgi_app = ReverseProxied(app.wsgi_app)
app.jinja_env.auto_reload = True
db.app = app # setting context
db.init_app(app)
db.create_all()
app.register_blueprint(bp)
compress.init_app(app)
dropzone.init_app(app)
# For flask monitoring dashboard
if config.DASHBOARD_CONFIG:
dashboard.config.init_from(config.DASHBOARD_CONFIG)
def group_action():
"""Apply custom grouping for action endpoint"""
from flask import request
if request.endpoint == 'label.action':
return request.view_args['action_type']
dashboard.config.group_by = group_action
dashboard.bind(app)
return app