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ARK-NODE Ark is a next generation crypto-currency and decentralized application platform, written entirely in JavaScript. For more information please refer to our website: https://ark.io/.

This version is still beta, use at your own risks

Install, Upgrade etc...

You need to provision a linux (ubuntu tested) server (digital ocean, vultur or other).

Then use the excellent ark-commander script

cd
wget https://ark.io/ARKcommander.sh
bash ARKcommander.sh

For developers, please read the "Developer Installation" section below.

or Alternatively run

cd
wget https://ark.io/DARKcommander.sh
bash DARKcommander.sh

Details

This is a fork from Lisk with the following features:

  • Removed sidechains (deprecated in favor of smartbridge)
  • Removed custom node version
  • Removed UI for stability and security reasons
  • Changed some constants (block rewards, blocktime etc...)
  • Added simple PBFT before forging new block
  • Ditch addresses from the protocol in favor of bitcoin like system, enabling HD Wallet as for BIP32
  • Completely rewritten node management using a single NodeManager and messaging system
  • Completely rewritten round management (removed mem_round, reward block fees to forger)
  • Added 64 bytes vendorField as first iteration of smart bridge
  • Made peers management entirely in-memory for efficiency
  • Strengthened the transaction management and broadcast (reject often, reject soon)
  • Rearchitect with relay nodes and forging nodes
  • Nodes broadcast only block headers.

### Planned features:

  • Simple blockchain validation for SPV and use in lite clients
  • Add IPFS as first class citizen (using smartbridge addressing)
  • Protocol improvements (uncle forging, voting weights).
  • Remove unsecured API
  • Routing tables

### Performance

  • stable on testnet at 5tx/s
  • pushed to 10tx/s on devnet

Developer Installation

Vagrant

Vagrant is a virtual development environment manager backed by a provider like VirtualBox.

To start the Vagrant environment:

vagrant up

All dependency installation and configuration for the dev environment is in the VagrantFile. After installation, ark-node will automatically start and log all output to the console.

To log into the Vagrant environment:

vagrant ssh

To destroy and revert to the original state:

vagrant destroy
vagrant up

There will be a drive shared with the host machine inside the VM, mounted at /vagrant.

Non-Vagrant

Install essentials:

sudo apt-get update
sudo apt-get install -y curl build-essential python git

Install PostgreSQL (min version: 9.5.2)

sudo apt-get install -y postgresql postgresql-contrib
sudo -u postgres createuser --createdb --password $USER
createdb ark_test

Install Node.js (tested with version 6.9.2, but any recent LTS release should do):

sudo apt-get install -y nodejs
sudo npm install -g n
sudo n 6.9.2

Install grunt-cli (globally):

sudo npm install grunt-cli -g

Clone this repository

git clone https://github.com/arkecosystem/ark-node.git
cd ark-node

Install node modules:

npm install libpq secp256k1
npm install

Launch

To launch Ark on testnet:

createdb ark_testnet
npm run start:testnet

To launch Ark on devtnet:

createdb ark_devnet
npm run start:devnet

To launch Ark on mainnet (when launched):

createdb ark_mainnet
npm run start:mainnet

NOTE: The port, address, genesis block and config-path can be overridden by providing the relevant command switch:

node app.js -p [port] -a [address] -c [config-path] -g [genesisBlock-path]

This allow you to run several different networks, or your own private chain

Launch your own private or public chain

Generate a genesisBlock.json + a default config.json containing all passphrases of genesis delegates

node tasks/createGenesisBlock.js

Be sure to configure this file for your needs

  • a genesisBlock.json containing the genesis block
  • a config.json containing configuration to start relay nodes
  • an autoforging config.json containing configuration to start all delegates on a single node (for testing purpose)
  • a bunch of config files to distribute to different configured delegate nodes starting the network.
  • a delegatesPassphrases.json containing details about the genesis delegates
  • a genesisPassphrase.json containing the details of delegates that will launch your network

Obviously you can hack away tasks/createGenesisBlock.js for your own custom use.

You can the start with your own chain on a single node (all delegates will forge on your single node) using:

createdb ark_newtest
npm run start:newtest

Then you can distribute the config.json (without the delegates secrets inside, and with custom peers settings) to peers to let them join your chain

Tests

Load git submodule ark-js:

git submodule init
git submodule update

You should run using test configurations

npm run start:test

Run the test suite:

npm test

Run individual tests:

npm test -- test/api/accounts.js
npm test -- test/api/transactions.js

NOTE: The master passphrase for this test genesis block is as follows:

peace vanish bleak box tuna woman rally manage undo royal lucky since

Authors

License

The MIT License (MIT)

Copyright (c) 2018 Steak Coin Copyright (c) 2016-2017 Ark Copyright (c) 2016 Lisk Copyright (c) 2014-2015 Crypti

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.