jargote/async-thumbnails

#Asynchronous-thumbnails

Description

This project offers a django http server that generates thumbnails for image urls given in a specific JSON format.

json = {
   "item1": {
        "title": "Image title",
        "description": "some description",
        "image_url": "/some/url/to/image"
    },
   "item2": {
        "title": "Image title2",
        "description": "some description2",
        "image_url": "/some/url/to/image2"
    },
 }

Asynchronous tasks are send to the Celery workers running. These download and generate the thumbnails of the image urls.

On completion these workers will trigger a notification to the push server running in NodeJS which means that the thumbnails are ready to be served.

Architecture Overview

##Prerequisites

Make sure you have this libraries installed in your system or virtual env.

    1.  virtualenv
    2.  python-setuptools (pip)
    3.  nodejs
        *   express
        *   socket.io

##Setting up environment.

>>  virtualenv async-thumbs
>>  cd async-thumbs
>>  source ./bin/activate

copy project folder to current folder so it looks like… /async-thumbs/thumbs/

>>  cd thumbs
>>  pip install -r requirements.txt

Running the services

Http Server (django)

>>  ./manage.py runserver

Push Server (nodejs)

>>  cd push-server/
>>  node server.js

Celery Worker (run as many as you like to make it faster’)

>>  cd ..
>>  celery -A thumbs worker -l info

Visit http://localhost:8000 (default port)

Have fun!

jargote / async-thumbnails