MaturaToBzdura is one of the most popular Polish channels on YouTube. In order to monetize their popularity, they decided to create Quiz House with us. The authors wanted to offer unique categories of quizzes and live games with friends or strangers. Our task was to create:
The Quiz House back-end was implemented using the microservice architecture and divided into 3 parts: REST API, game logic (WebSockets), and PUSH notification servers. All modules were written in Typescript 2.3 (Node.js ES6/ES7).
REST API — this microservice is responsible for accessing all of the structures available from the CMS panel and for communication with the mobile application.
A separate microservice is responsible for game mechanics, which are based on the SocketCluster framework, and enables fast, two-way live communication. Using the SocketCluster framework for WebSocket connections enabled scalability for the entire software solution.
The last microservice is a push server for queuing and sending notifications to individual users. This service is responsible for connection to the Google API (Firebase) push sending, provides information about the user's devices, and stores notification templates in various languages. Thanks to this, you can easily generate a notification sending event from different system locations (other microservers).
Our Android team was responsible for creating the software application, improving UX, and designing new app screens. Quiz House is written in Kotlin, which was the latest programming language supported by Google as of February 2018. Kotlin makes it easy to create clear and simple code that allows for quick modifications, and is 100% interchangeable with JAVA. Kotlin also solves the "Billion Dollar Mistake" (NullPointerException), which translates into application error reduction.
Quiz House also has a notification system that was implemented using the Firebase library. It serves to inform users about the latest app events such as friend requests, game invitations, and results.
After 4 months of work we created:
After 11 months of being on Google Play, Quiz House has been downloaded more than 1,000,000 times and its average rating is 4.5/5!
We decided to cooperate with Future Mind due to the professional and to-the-point attitude of their Project Manager, who liked our concept of quiz app. Moreover, he added several of his own ideas to make the application operate more effectively and be more intuitive for users. We cooperate with Future Mind to this day, perfecting the application and adding new functions. I’m very glad to have a partner who helps us with issues unnoticeable to the user since the application operates effectively 24 hours a day. We will surely collaborate with Future Mind on its version for iOS.
Quiz House - Founder & CEO
