How can I upload form/field contents to an IPFS node using Django?

Question

I'd like to override the upload behavior of a django ImageField so that after uploading to some url, the file will be added to an ipfs node.

For example, my model is something like:

class Profile(models.Model):
    picture = models.ImageField(upload_to=upload_location, blank=True)

I first try saving it as you would any other image, but then I give it an IPFS hash, which will allow the user to load the data client side.

In my views I have the following code to get an instance of ipfs daemon running.

import ipfsapi
from subprocess import call

os.system("ipfs daemon")
api = ipfsapi.connect('127.0.0.1', 5001)

When I try to run python manage.py makemigrations or runserver, however, the daemon runs but the rest of the command doesn't.

Initializing daemon...
Swarm listening on /ip4/127.0.0.1/tcp/4001
Swarm listening on /ip4/174.56.29.92/tcp/4001
Swarm listening on /ip4/192.168.1.109/tcp/4001
Swarm listening on /ip6/::1/tcp/4001
API server listening on /ip4/127.0.0.1/tcp/5001
Gateway (readonly) server listening on /ip4/127.0.0.1/tcp/8080
Daemon is ready

How can I start an ipfs daemon and also a django server? It doesn't look like they're listening on the same port (Django 8000, IPFS 8080), so why am I running into this problem?

Answer 1

https://pydigger.com/pypi/django-ipfs-storage

Installation

.. code:: bash

pip install django-ipfs-storage

Configuration

By default ipfs_storage adds and pins content to an IPFS daemon running on localhost and returns URLs pointing to the public https://ipfs.io/ipfs/ HTTP Gateway

To customise this, set the following variables in your settings.py:

• IPFS_STORAGE_API_URL: defaults to 'http://localhost:5001/api/v0/'.
• IPFS_GATEWAY_API_URL: defaults to 'https://ipfs.io/ipfs/'.

Set IPFS_GATEWAY_API_URL to 'http://localhost:8080/ipfs/' to serve content through your local daemon’s HTTP gateway.

Usage

There are two ways to use a Django storage backend.

As default backend ~~~~~~~~~~~~~~~~~~

Use IPFS as Django’s default file storage backend <https://docs.djangoproject.com/en/1.11/ref/settings/#std:setting-DEFAULT_FILE_STORAGE>__:

.. code:: python

# settings.py

DEFAULT_FILE_STORAGE = 'ipfs_storage.InterPlanetaryFileSystemStorage'

IPFS_STORAGE_API_URL = 'http://localhost:5001/api/v0/'
IPFS_STORAGE_GATEWAY_URL = 'http://localhost:8080/ipfs/'

For a specific FileField ~~~~~~~~~~~~~~~~~~~~~~~~

Alternatively, you may only want to use the IPFS storage backend for a single field:

.. code:: python

from django.db import models

from ipfs_storage import InterPlanetaryFileSystemStorage 


class MyModel(models.Model):
    # …
    file_stored_on_ipfs = models.FileField(storage=InterPlanetaryFileSystemStorage()) 
    other_file = models.FileField()  # will still use DEFAULT_FILE_STORAGE