dlc-stack

Modules that work together to provide a seamless lending experience for DLC.Link.

Modules

Attestor

The attestor module is providing a numeric oracle implementation for Bitcoin, creating announcements / attestations, triggered by events on a blockchain. It is primarily a NodeJs application, which is using a wasm module for the actual oracle implementation. See its README for more details.

Router Wallet

The wallet module is responsible for communicating with the dlc-manager contracts on the smart-chain side, and the Attestor Layer. It provides an API for creating and managing DLCs. See its README for more details.

WASM Wallet

The wasm-wallet module is a compact solution to be used in browser wallets. See its README for more details.

Storage-API

The storage-api module provides an API for hiding storage operations. Currently, it is implemented to work with Postgres as the underlying storage engine. See its README for more details.

Clients

The clients module provides re-usable clients for the attestor / wallet / storage-api.

IT (WIP)

The it module provides basic integration tests using BDD (Behavior-Driven Development) with Cucumber.

Build

# build all modules (rust)
make build
# build using docker
make docker-build
# build & run docker compose (see docker-compose.yml)
make docker-start

Known Build Errors

On Apple silicon (M1, M2) there are some known difficulties building the diesel package. This may materialize as something like the following:

  = note: ld: warning: directory not found for option '-L/usr/local/lib/postgresql@14'
          ld: library not found for -lpq
          clang: error: linker command failed with exit code 1 (use -v to see invocation)

Running the build in the following way may solve this problem. RUSTFLAGS='-L /opt/homebrew/opt/libpq/lib' cargo build

The following thread discusses in more details. diesel-rs/diesel#2605

License

APM 2.0

DLC-link/dlc-stack