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Frequently Asked Questions about Hug

For more examples, check out Hug's documentation and examples Github directories, and its website.

General Questions

Q: Can I use Hug with a web framework -- Django for example?

A: You can use Hug alongside Django or the web framework of your choice, but it does have drawbacks. You would need to run hug on a separate, hug-exclusive server. You can also mount Hug as a WSGI app, embedded within your normal Django app.

Q: Is Hug compatabile with Python 2?

A: Python 2 is not supported by Hug. However, if you need to account for backwards compatability, there are workarounds. For example, you can wrap the decorators:

def my_get_fn(func, *args, **kwargs):
    if 'hug' in globals():
        return hug.get(func, *args, **kwargs)
    return func

Technical Questions

Q: I need to ensure the security of my data. Can Hug be used over HTTPS?

A: Not directly, but you can utilize uWSGI with nginx to transmit sensitive data. HTTPS is not part of the standard WSGI application layer, so you must use a WSGI HTTP server (such as uWSGI) to run in production. With this setup, Nginx handles SSL connections, and transfers requests to uWSGI.

Q: How can I serve static files from a directory using Hug?

A: For a static HTML page, you can just set the proper output format as: output=hug.output_format.html. To see other examples, check out the html_serve example, the image_serve example, and the more general static_serve example within hug/examples.

Most basic examples will use a format that looks something like this:

@hug.static('/static')
def my_static_dirs():
    return('/home/www/path-to-static-dir')

Q: Does Hug support autoreloading?

A: Hug supports any WSGI server that uses autoreloading, for example Gunicorn and uWSGI. The scripts for initializing autoreload for them are, respectively:

Gunicorn: gunicorn --reload app:__hug_wsgi__ uWSGI: --py-autoreload 1 --http :8000 -w app:__hug_wsgi__

Q: How can I access a list of my routes?

A: You can access a list of your routes by using the routes object on the HTTP API:

__hug_wsgi__.http.routes

It will return to you a structure of "base_url -> url -> HTTP method -> Version -> Python Handler". Therefore, for example, if you have no base_url set and you want to see the list of all URLS, you could run:

__hug_wsgi__.http.routes[''].keys()

Q: How can I configure a unique 404 route?

A: By default, Hug will call documentation_404() if no HTTP route is found. However, if you want to configure other options (such as routing to a directiory, or routing everything else to a landing page) you can use the @hug.sink('/') decorator to create a "catch-all" route:

import hug

@hug.sink('/all')
def my_sink(request):
    return request.path.replace('/all', '')

For more information, check out the ROUTING.md file within the hug/documentation directory.