Running a Dash app within a Flask app

by

From the docs:

The underlying Flask app is available at app.server.

import dash
app = dash.Dash(__name__)
server = app.server

You can also pass your own Flask app instance into Dash:

import flask
server = flask.Flask(__name__)
app = dash.Dash(__name__, server=server)

Now that you have the Flask instance, you can add whatever routes and other functionality you need.

@server.route('/hello')
def hello():
    return 'Hello, World!'

To the more general question “how can I serve two Flask instances next to each other”, assuming you don’t end up using one instance as in the above Dash answer, you would use DispatcherMiddleware to mount both applications.

dash_app = Dash(__name__)
flask_app = Flask(__name__)

application = DispatcherMiddleware(flask_app, {'/dash': dash_app.server})

More Related Contents:

  1. How to return a dict as a JSON response from a Flask view?
  2. How to get POSTed JSON in Flask?
  3. Flask raises TemplateNotFound error even though template file exists
  4. Reference template variable within Jinja expression
  5. Is the server bundled with Flask safe to use in production?
  6. How many concurrent requests does a single Flask process receive?
  7. Handle Flask requests concurrently with threaded=True
  8. Make a POST request while redirecting in flask
  9. Saving upload in Flask only saves to project root
  10. redirect while passing arguments
  11. What is the purpose of Flask’s context stacks?
  12. error: [Errno 10053]
  13. Why does the session cookie work when serving from a domain but not when using an IP?
  14. Flask and uWSGI – unable to load app 0 (mountpoint=”) (callable not found or import error)
  15. RuntimeError: working outside of application context
  16. ImportError: No module named MySQLdb
  17. Method Not Allowed flask error 405
  18. Get inserted key before commit session
  19. Extending Flask class as main App
  20. CSS Problems with Flask Web App
  21. Python Flask, how to set content type
  22. Flask URL Route: Route Several URLs to the same function
  23. how to get access to error message from abort command when using custom error handler
  24. Gunicorn can’t find app when name changed from “application”
  25. Flask(‘application’) versus Flask(__name__)
  26. Plotly/Dash display real time data in smooth animation
  27. Unable to “import matplotlib.pyplot as plt” in virtualenv
  28. How can we call one route from another route with parameters in Flask?
  29. Return a requests.Response object from Flask
  30. Converting matplotlib png to base64 for viewing in html template

Leave a Comment