Pizza Toppings Ranking Application

This is a Spring Boot application written in Kotlin that uses Redis to store and rank pizza toppings based on user requests. The application stores these choices in a Redis data store (configured to persist data on disk) using the ZSET data structure, which automatically ranks items based on a score. When users submit their pizza toppings preferences, the application updates the score of each topping accordingly, and retrieves the toppings sorted by their scores.

Technologies Used

• Spring Boot
• Kotlin
• Redis
• Docker

Features

• Users can submit their preferred pizza toppings.
• The application stores these toppings and their occurrences in Redis.
• The application can return a ranking of pizza toppings.

Demo

The app is live at http://143.42.18.135/. Enjoy and have fun! 🚀😎

https://www.youtube.com/watch?v=2dRLwXHLdIU

TODO List

• 🔍 Add speed parameter
• 🔍 Coins balance per user
• 🔍 Add leaderboard for coin accumulation across users
• 🔍 Add blockchain based elements distribution

How to Run the Application

Prerequisites

Make sure you have the following installed:

• Java 17
• Gradle
• Docker

Steps

1. Clone the repository:

git clone https://github.com/maxb2718/pizza-toppings-ranking.git

2. Navigate to the project directory:

cd pizza-toppings-ranking

3. Build the app

./build.sh

4. Run the app

./run.sh

Now the application should be running at http://localhost:8080 and the toppings dashboard is accessible at http://localhost:8888.

API Endpoints

• POST /toppings: Submit a new pizza topping request.
• GET /toppings: Get a ranking of pizza toppings.

Example of Usage

curl -X POST -H "Content-Type: application/json" -d '{"email": "test@example.com", "toppingsContent": "Pepperoni, Onions, Mushrooms"}' http://localhost:8080/toppings

You can then view the rankings:

curl http://localhost:8080/toppings

Testing

You can send dozens test requests and populate the DB by using following command.

./add_toppings.sh