Thumbnailer

A thumbnail generator example using Minio's listenBucketNotification API. This is a simple example of how one can build a AWS Lambda like functionality on a laptop.

Dependencies

Dependencies are managed by npm use npm install.

npm install

Configure

Please edit config/development.json with your local parameters, currently the example points to https://play.minio.io:9000

<blockquote>This example works only with Minio server using an extended API</blockquote>

Run

Once configured proceed to run.

node thumbnail.js
Listening for events on "images"

Now upload an image using mc

mc cp ./toposort/graph.jpg play/images/
./toposort/graph.jpg:  34.29 KB / 34.29 KB ┃▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓┃ 100.00% 386.91 KB/s 0s

You will see thumbnail being generated after uploading the image using mc.

node thumbnail.js
Listening for events on "images"
Uploading new thumbail to "images-processed"
Successfully generated "graph-thumbnail.jpg" with md5sum "ca78ee1cc48358b4dbd883a589523e54"

To validate if the thumbnail was created at destination bucket use mc.

mc ls play/images-processed
[2017-01-22 23:44:51 PST]   629B graph-thumbnail.jpg