django_signposting is a Django middleware library that facilitates the addition of FAIR signposting headers to HTTP responses. This middleware helps in making your data more FAIR (Findable, accessible, interoperable, reuseable) by embedding signposting headers in responses, guiding clients to relevant resources linked to the response content.

Based on the Signposting library.

Features

Automatically adds signposting headers to HTTP responses.
Supports multiple relation types with optional media type specification.
Easily integrable with existing Django applications.

Installation

pip install django_signposting

Usage

1. Add Middleware

Add the middleware to your Django project's MIDDLEWARE setting in settings.py:

MIDDLEWARE = [
    ...,
    'django_signposting.middleware.SignpostingMiddleware',
    ...,
]

2. Add Signposts to your Views

You can add signposting headers in your Django views using the provided add_signposts utility function. Here's how you can use it:

from django.http import HttpResponse
from django_signposting.utils import add_signposts
from signposting import Signpost, LinkRel

def my_view(request):
    response = HttpResponse("Hello, world!")
    
    # Add signpostings as string
    add_signposts(
        response,
        Signpost(LinkRel.type, "https://schema.org/Dataset"),
        Signpost(LinkRel.author, "https://orcid.org/0000-0001-9447-460X")
        Signpost(LinkRel.item, "https://example.com/download.zip", "application/zip")
    )

    return response

3. Signposts are formatted and added as Link headers by the middleware:

curl -I http://localhost:8000
HTTP/2 200 
...
link: <https://schema.org/Dataset> ; rel="type" ,
      <https://orcid.org/0000-0001-9447-460X> ; rel="author" ,
      <https://example.com/download.zip> ; rel="item" ; type="application/zip"

TODO

Automatically generate signposts from present JSON+LD.
Option to add signposts in HTML via elements.

License

Licensed under the MIT License.