Dingir Exchange

Dingir Exchange is a high performance exchange trading server.
The core matching engine is a fully async, single threaded, memory based matching engine with thousands of TPS.

• Features: order matching, order state change notification, user balance management, market data...
• Non Features: user account system, cryptocurrency deposit/withdraw...

Technical Details

• Language: Rust
• API Interface: GRPC
• Server framework: Tokio/Hyper/Tonic
• Storage: SQL Databases
• Persistence: (a)Append operation log and (b)Redis-like fork-and-save persistence

The architecture is heavily inspired by Redis and Viabtc Exchange

Prerequisite

• cmake
• librdkafka

MacOS

$ brew install cmake librdkafka

Ubuntu / Debian

# apt install cmake librdkafka-dev

RedHat / CentOS / Fedora

# dnf install cmake librdkafka-devel

Todos

• push notifications using GRPC/websockets
• API Documentation
• Better test coverage

Example

# Simple test
$ cd $DingirExchangeDir
# Lanuch the external dependency services like Postgresql and Kafka
$ docker-compose --file "./orchestra/docker/docker-compose.yaml" up --detach
$ make startall # or `cargo run --bin matchengine` to start only core service
$ cd $DingirExchangeDir/examples/js ; npm i
# This script will put orders into the exchange.
# Then you will find some orders got matched, trades generated,
# and users' balances updated accordingly. 
$ npx ts-node tests/trade.ts 

Release

We uses cross to generate release builds for Linux Distributions. For example, you could generate a static release build via the below command.

RUSTFLAGS="-C link-arg=-static -C target-feature=+crt-static" cross build --bin matchengine --target x86_64-unknown-linux-gnu --release

And a new Docker image could be generated by the release script.

# In root directory of this project
./release/release.sh YOUR_DOCKER_REGISTRY_DOMAIN.COM:YOUR_DOMAIN_PORT NEW_IMAGE_TAG

Related Projects

Peatio: A full-featured crypto exchange backend, with user account system and crypto deposit/withdraw. Written in Ruby/Rails. It can process less than 200 orders per second.

viabtc exchange server: A high performance trading server written in C/libev. Most components of the project are written from scratch including network, RPC. It can process thousands of orders per second.