Service implementation

[taganaka]

Features

• Easy to scale thanks to producer/consumer architecture backed by redis
• It generates for each plot a customizable set of different thumbs size
• Embedding cached image in the page is easy as

<img src="//proxy/plot/:plot_public_id/:geometry">

Es:

<img src="/plot/cb638004-661c-4c11-802c-1fc1e2312577/356x280">

• New public plots are discovered and cached automatically

Components

• API: It is used to serve cached images to the client
• Seeder: A recurring task would go through each available public plot by pinging Metabase's API and it will enqueue a new caching job
• Worker: Responsible to perform screenshot and thumbs, consuming jobs enqueued by the Seeder

How to run locally with docker compose:

• Make sure to have a valid https://graph.daf.teamdigitale.it account
• Obtain your metabase token with the following command

$ curl -XPOST -H "Content-Type: application/json" -d  '{"username": "user@domain.com", "password": "xxxxx"}'   https://graph.daf.teamdigitale.it/api/session

• Make sure to have a jdk8 installed
• Make sure to have a modern maven version installed
• Copy config.properties.example to config-docker.properties and edit it accordingly
• Compile it with:

$ mvn clean dependency:copy-dependencies  package -Dmaven.test.skip=true

• Build the container with:

$ docker build -t italia/daf-metabase-cacher .

Run with:

$ docker-compose up

Once the service is up, a POC will be available at http://localhost:4567/

Live demo available at https://daf-cache.taganaka.com/

italia/daf-dataportal#46

[ruphy]

This contribution is amazing! Thank you so much for it, merging! 😄 🥇

I also invited you to become part of the italia organization, so that you can display this contribution on your profile. 🎉 I am also granting you admin access to this repository, so that you can keep improving this code as you wish! Great job! 😄
Welcome to the community, and remember: with great power comes great responsibility.

If you wish to display your belonging pubicly, don't forget to change the visibility (you can do so here) after you accept the invitation!

[taganaka]

@ruphy Glad you guys liked it!

Looking forward to continuing to improve this project