Telepuz is one public chat room where you can chat with anyone and about anything.
The chat was created for educational and entertainment purposes
Copy, modify, refine and take useful practices from the app
Telepuz uses many different technologies and practices that are used to create large and high-quality Android applications:
- Kotlin - programming language;
- Custom View - user avatars are made as a custom view, which draws a colored circle and text on it;
- MVVM (Model View ViewModel) - the architecture that Telepuz is built on. Allows you to differentiate between business logic and design;
- Dagger - Hilt - dependency injection framework, using the Hilt submodule to better work with the ViewModel;
- WebSocket - the TCP data transfer Protocol allows you to transmit data in live mode without making a request to the server;
- MessagePack - format for data exchange between the client and the server. It was chosen because of a number of advantages: speed of serialization/deserialization, smaller volume of serialized object than JSON;
A mini-protocol was written on top of WebSocket, which introduces the concept of a method and the data sent to this method. Since WebSocket only transmits bytes, we had to develop our own way to serialize them.
- Pool of listened methods - a special dictionary that records callbacks of the methods that we want to listen to when implementing business logic. For example:
client.on("user.create", data) - start listening for the method, placing it in the pool of all methods. When the server sends data to 'user.create', the mini-Protocol will find it in the dictionary and call a callback, sending a response from the server to it.
Two people worked on the app:
Backend - repository of the server part in Golang
- KerJen - Anton Iankin - @KerJen (Telegram)
- undefined - Iaroslav Evstafiev - @undefined7887 (Telegram)