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43 lines
2.0 KiB
ReStructuredText
43 lines
2.0 KiB
ReStructuredText
Subscriptions
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=============
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The ``graphene-django`` project does not currently support GraphQL subscriptions out of the box. However, there are
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several community-driven modules for adding subscription support, and the provided GraphiQL interface supports
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running subscription operations over a websocket.
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To implement websocket-based support for GraphQL subscriptions, you’ll need to do the following:
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1. Install and configure `django-channels <https://channels.readthedocs.io/en/latest/installation.html>`_.
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2. Install and configure* a third-party module for adding subscription support over websockets. A few options include:
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- `graphql-python/graphql-ws <https://github.com/graphql-python/graphql-ws>`_
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- `datavance/django-channels-graphql-ws <https://github.com/datadvance/DjangoChannelsGraphqlWs>`_
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- `jaydenwindle/graphene-subscriptions <https://github.com/jaydenwindle/graphene-subscriptions>`_
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3. Ensure that your application (or at least your GraphQL endpoint) is being served via an ASGI protocol server like
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daphne (built in to ``django-channels``), `uvicorn <https://www.uvicorn.org/>`_, or
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`hypercorn <https://pgjones.gitlab.io/hypercorn/>`_.
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..
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*** Note:** By default, the GraphiQL interface that comes with
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``graphene-django`` assumes that you are handling subscriptions at
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the same path as any other operation (i.e., you configured both
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``urls.py`` and ``routing.py`` to handle GraphQL operations at the
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same path, like ``/graphql``).
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If these URLs differ, GraphiQL will try to run your subscription over
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HTTP, which will produce an error. If you need to use a different URL
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for handling websocket connections, you can configure
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``SUBSCRIPTION_PATH`` in your ``settings.py``:
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.. code:: python
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GRAPHENE = {
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# ...
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"SUBSCRIPTION_PATH": "/ws/graphql" # The path you configured in `routing.py`, including a leading slash.
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}
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Once your application is properly configured to handle subscriptions, you can use the GraphiQL interface to test
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subscriptions like any other operation.
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