application.py

import os

import sentry_sdk
from flask import Flask
from sentry_sdk.integrations.flask import FlaskIntegration

from app import create_app

sentry_sdk.init(
    dsn=os.environ['SENTRY_DSN'],
    integrations=[FlaskIntegration()],
    environment=os.environ['NOTIFY_ENVIRONMENT'],
    attach_stacktrace=True,
    traces_sample_rate=0.00005  # avoid exceeding rate limits in Production
)
sentry_sdk.set_level('error')  # only record error logs or exceptions

application = Flask('app')

create_app(application)
Trial running Sentry in Admin This will capture and send various events to Sentry: - Any unhandled exceptions. - Any logger.error calls. - Some request traces. The latter are severely limited to avoid going over the free tier limits for Sentry, and to avoid excess effort on our end. 2021-12-30 14:05:43 +00:00			`import os`

			`import sentry_sdk`
remove flask-script flask-script has been deprecated by the internal flask.cli module, but making this carries a few changes with it * you should add FLASK_APP=application.py and FLASK_DEBUG=1 to your environment.sh. * instead of using `python app.py runserver`, now you must run `flask run -p 6012`. The -p command is important - the port must be set before the config is loaded, so that it can live reload nicely. (https://github.com/pallets/flask/issues/2113#issuecomment-268014481) * find available commands by just running `flask`. * run them using flask. eg `flask list_routes` * define new tasks by giving them the decorator `@app.cli.command('task-name')`. Task name isn't needed if it's just the same as the function name. Alternatively, if app isn't available in the current scope, you can invoke the decorator directly, as seen in app/commands.py 2017-11-06 13:07:21 +00:00			`from flask import Flask`
Trial running Sentry in Admin This will capture and send various events to Sentry: - Any unhandled exceptions. - Any logger.error calls. - Some request traces. The latter are severely limited to avoid going over the free tier limits for Sentry, and to avoid excess effort on our end. 2021-12-30 14:05:43 +00:00			`from sentry_sdk.integrations.flask import FlaskIntegration`
Fix flake8 and isort errors Note, isort now has default behaviour of searching recursively so we no longer need the `-rc` flag 2021-03-08 15:36:23 +00:00
remove flask-script flask-script has been deprecated by the internal flask.cli module, but making this carries a few changes with it * you should add FLASK_APP=application.py and FLASK_DEBUG=1 to your environment.sh. * instead of using `python app.py runserver`, now you must run `flask run -p 6012`. The -p command is important - the port must be set before the config is loaded, so that it can live reload nicely. (https://github.com/pallets/flask/issues/2113#issuecomment-268014481) * find available commands by just running `flask`. * run them using flask. eg `flask list_routes` * define new tasks by giving them the decorator `@app.cli.command('task-name')`. Task name isn't needed if it's just the same as the function name. Alternatively, if app isn't available in the current scope, you can invoke the decorator directly, as seen in app/commands.py 2017-11-06 13:07:21 +00:00			`from app import create_app`

Trial running Sentry in Admin This will capture and send various events to Sentry: - Any unhandled exceptions. - Any logger.error calls. - Some request traces. The latter are severely limited to avoid going over the free tier limits for Sentry, and to avoid excess effort on our end. 2021-12-30 14:05:43 +00:00			`sentry_sdk.init(`
			`dsn=os.environ['SENTRY_DSN'],`
			`integrations=[FlaskIntegration()],`
			`environment=os.environ['NOTIFY_ENVIRONMENT'],`
			`attach_stacktrace=True,`
			`traces_sample_rate=0.00005 # avoid exceeding rate limits in Production`
			`)`
			`sentry_sdk.set_level('error') # only record error logs or exceptions`

Remove WhiteNoise We’re now serving assets from S3 when running on PaaS. So we’ll set the appropriate caching headers there or in Cloudfront. This means that the app no longer needs to serve cache headers, which is what we were using WhiteNoise for. This commits removes WhiteNoise in favour of letting Flask handle the serving of static assets. 2018-12-21 10:40:00 +00:00			`application = Flask('app')`
Expose `application` as a variable This is what Gunicorn is looking for when it’s running the app. Renaming this variable to `app` has caused the app to break once deployed on PaaS. This commit also renames `app` to `flask_app` to make it clear which app is wrapping which other app. 2018-11-29 14:02:20 +00:00
Remove WhiteNoise We’re now serving assets from S3 when running on PaaS. So we’ll set the appropriate caching headers there or in Cloudfront. This means that the app no longer needs to serve cache headers, which is what we were using WhiteNoise for. This commits removes WhiteNoise in favour of letting Flask handle the serving of static assets. 2018-12-21 10:40:00 +00:00			`create_app(application)`