Nethermind

Our flagship .NET Core Ethereum client for Linux, Windows, MacOs - full and actively developed.

Programming language: C#

License: GNU General Public License v3.0 or later

Tags: Blockchain    

Latest version: v1.9.47

README

.NET Core Ethereum client

Documentation		https://docs.nethermind.io
Gitter		https://gitter.im/nethermindeth/nethermind
Discord
Medium		https://medium.com/nethermind-eth
Twitter		https://twitter.com/nethermindeth
Releases		https://github.com/NethermindEth/nethermind/releases
Website		https://nethermind.io/
Docker		https://hub.docker.com/r/nethermind/nethermind
Codecov.io		https://codecov.io/gh/NethermindEth/nethermind
Fund	with Gitcoin	https://gitcoin.co/grants/142/nethermind
Github Actions		https://github.com/NethermindEth/nethermind/actions

Download and run:

Windows Linux x64/arm64 MacOS

It syncs fully on:

• Mainnet
• Goerli
• Rinkeby
• Ropsten
• xDai
• Poacore
• Sokol
• Energyweb
• Volta
• Kovan (only fast sync and may fail if pWASM transactions appear)

PPA (Tested on Ubuntu Series: Focal, Bionic, Xenial and Trusty)

1. sudo add-apt-repository ppa:nethermindeth/nethermind
2. sudo apt install nethermind
3. To execute the launcher nethermind
4. To execute the runner nethermind --config mainnet

Homebrew

1. brew tap nethermindeth/nethermind
2. brew install nethermind
3. To execute the launcher nethermind-launcher
4. To execute the runner nethermind --config mainnet

Build from Source

Prerequisites :construction:

.NET 5.0 SDK

Windows

• Install .NET
• You may need to install this.

Linux

Ubuntu

• Install .NET
• Install dependencies sh sudo apt-get install libsnappy-dev libc6-dev libc6 Tested on Ubuntu 21.04, 20.04 and 18.04 LTS

Debian

• Install .NET
• Install dependencies sh sudo apt-get install libsnappy-dev libc6-dev libc6 Tested on Debian 10 (9 not working)

CentOS

• Install .NET
• Install dependencies ```sh sudo yum install -y glibc-devel bzip2-devel libzstd

Link libraries

sudo ln -s find /usr/lib64/ -type f -name "libbz2.so.1*" /usr/lib64/libbz2.so.1.0 && \ sudo ln -s find /usr/lib64/ -type f -name "libsnappy.so.1*" /usr/lib64/libsnappy.so

*Tested on CentOS 8*

#### Fedora
* [Install .NET](https://docs.microsoft.com/en-gb/dotnet/core/install/linux-fedora)
* Install dependencies
```sh
sudo yum install -y glibc-devel snappy libzstd

# Link libraries
sudo ln -s `find /usr/lib64/ -type f -name "libbz2.so.1*"` /usr/lib64/libbz2.so.1.0 && \
sudo ln -s `find /usr/lib64/ -type f -name "libsnappy.so.1*"` /usr/lib64/libsnappy.so

Tested on Fedora 32

MacOS

• Install .NET
• Install dependencies sh brew install rocksdb gmp snappy lz4 zstd

Build and Run

git clone https://github.com/NethermindEth/nethermind --recursive
cd nethermind/src/Nethermind
dotnet build Nethermind.sln -c Release
cd Nethermind.Runner
dotnet run -c Release --no-build -- --config mainnet

Docker Image

Official Nethermind docker images are available on Docker Hub.

Get digest of docker image

In case of any docker image need to be updated in the repository, you can update the digest of this images with the next commands

docker inspect --format='{{index .RepoDigests 0}}' <image_name>

The output must show the image digest, and then you can copy that output in the FROM tag inside the Dockerfile

Test

If you want to run the Nethermind or Ethereum Foundation tests, then:

dotnet build Nethermind.sln -c Debug
dotnet test Nethermind.sln

dotnet build EthereumTests.sln -c Debug
dotnet test EthereumTests.sln

IDE

• JetBrains Rider
• Visual Studio Code

Contributors welcome

At Nethermind we are building an open source multiplatform Ethereum client implementation in .NET Core (running seamlessly on Linux, Windows and MacOS). Simultaneously our team works on Nethermind Data Marketplace and on-chain data extraction tools and client customizations.

Nethermind client can be used in your projects, when setting up private Ethereum networks or dApps. The latest prod version of Nethermind can be found at downloads.nethermind.io.

License