Decentralized Autonomous Network BlockChain

Fast and feature-rich multi-network Decentralized Autonomous Network client. Forked from openethereum.

[» Download the latest DAClient release «]

1. Description

Built for mission-critical use: Miners, service providers, and exchanges need fast synchronisation and maximum uptime. OpenEthereum provides the core infrastructure essential for speedy and reliable services.

• Clean, modular codebase for easy customisation
• Advanced CLI-based client
• Minimal memory and storage footprint
• Synchronise in hours, not days with Warp Sync
• Modular for light integration into your service or product

2. Technical Overview

DA-Client's goal is to be the fastest, lightest, and most secure chain client. We are developing DA-Client using the Rust programming language. DA-Client is licensed under the GPLv3 and can be used for all your Ethereum needs.

By default, OpenEthereum runs a JSON-RPC HTTP server on port :8545 and a Web-Sockets server on port :8546. This is fully configurable and supports a number of APIs.

3. Building

3.1 Build Dependencies

DA-Client requires latest stable Rust version to build.

We recommend installing Rust through rustup. If you don't already have rustup, you can install it like this:

• Linux:

  $ curl https://sh.rustup.rs -sSf | sh

  DA-Client also requires clang (>= 9.0), clang++, pkg-config, file, make, and cmake packages to be installed.

• OSX:

  $ curl https://sh.rustup.rs -sSf | sh

  clang is required. It comes with Xcode command line tools or can be installed with homebrew.

• Windows: Make sure you have Visual Studio 2015 with C++ support installed. Next, download and run the rustup installer from https://static.rust-lang.org/rustup/dist/x86_64-pc-windows-msvc/rustup-init.exe, start "VS2015 x64 Native Tools Command Prompt", and use the following command to install and set up the msvc toolchain:

  $ rustup default stable-x86_64-pc-windows-msvc

Once you have rustup installed, then you need to install:

• Perl
• Yasm

Make sure that these binaries are in your PATH. After that, you should be able to build OpenEthereum from source.

3.2 Build from Source Code

# download danetwork code
$ git clone https://github.com/DaNetworkTech/DaChain
$ cd DaChain

# build in release mode
$ cargo build --release --features final

This produces an executable in the ./target/release subdirectory.

Note: if cargo fails to parse manifest try:

$ ~/.cargo/bin/cargo build --release

Note, when compiling a crate and you receive errors, it's in most cases your outdated version of Rust, or some of your crates have to be recompiled. Cleaning the repository will most likely solve the issue if you are on the latest stable version of Rust, try:

$ cargo clean

This always compiles the latest nightly builds. If you want to build stable, do a

$ git checkout stable

3.3 Starting DA-Client

Manually

To start OpenEthereum manually, just run

$ ./target/release/danetwork --config node.toml