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A personal Anki sync server (so you can sync against your own server rather than AnkiWeb)

Project description

Anki is a powerful Open Source flashcard application, which helps you quickly and easily memorize facts over the long term utilizing a spaced repetition algorithm.

Anki’s main form is a desktop application (for Windows, Linux and MacOS) which can sync to a web version (AnkiWeb) and mobile versions for Android and iOS.

This is a personal Anki Server, which you can sync against instead of AnkiWeb.

It also includes a RESTful API, so that you could implement your own AnkiWeb-like site if you wanted.

It was originally developed to support the flashcard functionality on Bibliobird, a web application for language learning.

Installing the easy way!

If you have easy_install or pip on your system, you can simply run:

$ easy_install AnkiServer

Or using pip:

$ pip install AnkiServer

This will give you the latest released version!

However, if you want to try the latest bleeding edge version OR you want to help with development, you’ll need to install from source. In that case, follow the instructions in the next two sections.

Setting up a virtualenv

If you want to install your Anki Server in an isolated Python environment using virtualenv, please follow these instructions before going on to the next section. If not, just skip to the “Installing” section below.

There are many reasons for installing into a virtualenv, rather than globally on your system:

  • You can keep the Anki Server’s dependencies seperate from other Python applications.
  • You don’t have permission to install globally on your system (like on a shared host).

Here are step-by-step instruction for setting up your virtualenv:

  1. First, you need to install “virtualenv”. If your system has easy_install or pip, this is just a matter of:

    $ easy_install virtualenv

    Or using pip:

    $ pip install virtualenv

    Or you can use your the package manager provided by your OS.

  2. Next, create your a Python environment for running AnkiServer:

    $ virtualenv AnkiServer.env
  3. (Optional) Enter the virtualenv to save you on typing:

    $ . AnkiServer.env/bin/activate

If you skip step 3, you’ll have to type AnkiServer.env/bin/python instead of python and AnkiServer.env/bin/paster instead of paster in the following sections.

Also, remember that the environment change in step 3 only lasts as long as your current terminal session. You’ll have to re-enter the environment if you enter that terminal and come back later.

Installing your Anki Server from source

  1. Install all the dependencies we need using easy_install or pip:

    $ easy_install webob PasteDeploy PasteScript sqlalchemy simplejson

    Or using pip:

    $ pip install webob PasteDeploy PasteScript sqlalchemy simplejson

    Or you can use your the package manager provided by your OS.

  2. Download and install libanki. You can find the latest release of Anki here:

    Look for a *.tgz file with a Summary of “Anki Source”. At the time of this writing that is anki-2.0.11.tgz.

    Download this file and extract.

    Then either:

    1. Run the ‘make install’, or
    2. Copy the entire directory to /usr/share/anki
  3. Make the egg info files (so paster can see our app):

    $ python egg_info

Configuring and running your Anki Server

  1. Copy the example.ini to production.ini in your current directory and edit for your needs.

    1. If you installed from source, it’ll be at the top-level.

    2. If you installed via ‘easy_install’ or ‘pip’, you’ll find all the example configuration at python_prefix/lib/python2.X/site-packages/AnkiServer-2.X.X-py2.X.egg/examples (replacing python_prefix with the root of your Python and all the X with the correct versions). For example, it could be:

  1. Create user:

    $ ./ adduser <username>
  2. Test the server by starting it debug mode:

    $ ./ debug

    If the output looks good, you can stop the server by pressing Ctrl-C and start it again in normal mode:

    $ ./ start

    To stop AnkiServer, run:

    $ ./ stop

Point the Anki desktop program at it

Unfortunately, there isn’t currently any user interface in the Anki destop program to point it at your personal sync server instead of AnkiWeb, so you’ll have to write a short “addon”.

Create a file like this in your Anki/addons folder called “”:

import anki.sync
anki.sync.SYNC_BASE = ''
anki.sync.SYNC_MEDIA_BASE = ''

Be sure to change the SYNC_URL to point at your sync server. The address refers to the local computer.

Restart Anki for your plugin to take effect. Now, everytime you sync, it will be to your personal sync server rather than AnkiWeb.

However, if you just want to switch temporarily, rather than creating an addon, you can set the SYNC_URL environment variable when running from the command-line (on Linux):

export SYNC_URL=
./runanki &

Point the mobile apps at it

At the moment, there isn’t any way to get AnkiDroid or the Anki iOS app to point at your personal sync server. :-/

However, there are an issue open on AnkiDroid about it:

If you’re interested in seeing this feature, please go to this link and let the maintainers know!

Running with Supervisor

If you want to run your Anki server persistantly on a Linux (or other UNIX-y) server, Supervisor is a great tool to monitor and manage it. It will allow you to start it when your server boots, restart it if it crashes and easily access it’s logs.

  1. Install Supervisor on your system. If it’s Debian or Ubuntu this will work:

    $ sudo apt-get install supervisor

    If you’re using a different OS, please try these instructions.

  2. Copy supervisor-anki-server.conf to /etc/supervisor/conf.d/anki-server.conf:

    $ sudo cp supervisor-anki-server.conf /etc/supervisor/conf.d/anki-server.conf
  3. Modify /etc/supervisor/conf.d/anki-server.conf to match your system and how you setup your Anki Server in the section above.

  4. Reload Supervisor’s configuration:

    $ sudo supervisorctl reload
  5. Check the logs from the Anki Server to make sure everything is fine:

    $ sudo supervisorctl tail anki-server

    If it’s empty - then everything’s fine! Otherwise, you’ll see an error message.

Later if you manually want to stop, start or restart it, you can use:

$ sudo supervisorctl stop anki-server

$ sudo supervisorctl start anki-server

$ sudo supervisorctl restart anki-server

See the Supervisor documentation for more info!

Using with Apache

If you’re already serving your website via Apache (on port 80) and want to also allow users to sync against a URL on port 80, you can forward requests from Apache to the Anki server.

On, I have a special virtual host which users can synch against. Here is an excerpt from my Apache conf:

<VirtualHost *:80>

    # The Anki server handles gzip itself!
    SetEnv no-gzip 1

    <Location />
        ProxyPass http://localhost:27701/
        ProxyPassReverse http://localhost:27701/

It may also be possible to use mod_wsgi, however, I have no experience with that.

How to get help

If you’re having any problems installing or using Anki Server, please post a message on our Google Group:!forum/anki-sync-server

Be sure to let us know which operating system and version you’re using and how you intend to use the Anki Server!

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