Debra is a simple chat demo application that utilizes the QUIC protocol through the quinn (Dexter fans, did you see what I did here? :P) library in Rust. It allows multiple clients to connect to a server and send messages to each other in real-time.

It uses flatbuffers (so we can use zero-copy on the server) for the communication between clients.

To run the server:

RUST_LOG=info cargo run --bin server

To run the clients you must specify the client id:

cargo run --bin client -- --client-id 2

After that you enter the id of the client you want to send a message, press enter. Write the message and press enter, done!

I describe this as a "chat application", but the main idea is that you can have multiple clients, sending messages to each other through the server. This could be used to for different reasons.

• QUIC - The protocol that powers this chat application.
• FlatBuffers - For efficient serialization of messages.