BlockchainIntensive2017

Hi all this repository for support Microsoft Blockchain Intense 2017

Nedeed instruments

Truffle framework http://truffleframework.com/ https://truffle-box.github.io/ TestRPC https://github.com/ethereumjs/testrpc Geth - https://github.com/ethereum/go-ethereum/wiki/Installation-Instructions-for-Ubuntu

How to set-up Dev Environment

Windows Subsytem for Linux intallation:

Turn-om Windows subsystem for Linux in "Turn Windows Features on or off" More info - https://msdn.microsoft.com/en-us/commandline/wsl/install_guide
Start Ubuntu Bash from searching bar
Takes a clean Ubuntu image, up to being dev ready. install npm from official repo, as apt-get has a very old version of npm:

curl -sL https://deb.nodesource.com/setup_7.x | sudo -E bash -

sudo apt-get update -y && sudo apt-get upgrade -y
Install the NodeJs

sudo apt-get install -y build-essential python nodejs
Upgrade npm before install tools

sudo npm install -g npm

sudo npm install -g ethereumjs-testrpc truffle

if you have access error, try to use

unsafe parameters - sudo npm install --unsafe-perm --verbose -g ethereumjs-testrpc
Intall geth

sudo apt-get install software-properties-common

sudo add-apt-repository -y ppa:ethereum/ethereum

sudo apt-get update

sudo apt-get install ethereum

Linux installation

The same as for Windows subsytem

Mac installation

Install Homebrew

More installation information and options at http://docs.brew.sh/Installation.html.
Check that you have latest version of Xcode
Install NodeJs

brew install node

To make sure you have Node and NPM installed, run two simple commands to see what version of each is installed

node -v

npm -v

How to Update Node and NPM

brew update

brew upgrade node
Intall geth

brew tap ethereum/ethereum

brew install ethereum

You can install the develop branch by running --devel

brew install ethereum --devel

Test Guide

How to use truffle console

Truffle v3.2.5 - a development framework for Ethereum
Usage: truffle <command> [options]
Commands:
  init      Initialize new Ethereum project with example contracts and tests
  compile   Compile contract source files
  migrate   Run migrations to deploy contracts
  deploy    (alias for migrate)
  build     Execute build pipeline (if configuration present)
  test      Run Mocha and Solidity tests
  console   Run a console with contract abstractions and commands available
  create    Helper to create new contracts, migrations and tests
  install   Install a package from the Ethereum Package Registry
  publish   Publish a package to the Ethereum Package Registry
  networks  Show addresses for deployed contracts on each network
  watch     Watch filesystem for changes and rebuild the project automatically
  serve     Serve the build directory on localhost and watch for changes
  exec      Execute a JS module within this Truffle environment
  version   Show version number and exit

See more at http://truffleframework.com/docs

For BASIC Truffle project

truffle init
truffle console

-How to get accounts

web3.eth.accounts

2.1. How to get reference to deployed contract

var metaCoin;
MetaCoin.deployed().then(function(deployed) {metaCoin = deployed;});

2.2. How to get balance of account 0

metaCoin.getBalance.call(web3.eth.accounts[0])

2.3. How to send coins

var account1 = web3.eth.accounts[1];
metaCoin.sendCoin(account1, 1000, {from: account0});
metaCoin.getBalance.call(account0);

How to deploy Smart Contract to Ethereum BaaS on Azure by using truffle

Go to folder with truffle project
Add parameters of Deployed Azure template to truffle.js:

    module.exports = {
  networks: {
  azure :{
      host: "", //Adress of your Azure RPC endpoints (Deployments - Output)
      port: 8545, //Port of RPC - basically rest the same
      network_id: "" //Network id which you have choose when created the network 
    },
    development: {
      host: "localhost",
      port: 8545,
      network_id: "*" // Match any network id
    }
  }
};

Safe file
Try to migrate your Smart contact by using truffle migrate --network azure

You will get the following error:
Running migration: 1_initial_migration.js
  Deploying Migrations...
Error encountered, bailing. Network state unknown. Review successful transactions manually.
Error: account is locked 
For resolve this problemm you need to unlock the account

Connect to your TX node (Deployments - Output - SSH to first Tx node)
Run geth attach command
Run personal.unlockAccount(eth.coinbase) command to unlock the account
Migrate your smart contract truffle migrate --network azure
To connect to truffle console type truffle console --network azure

IhorLeontiev/BlockchainIntensive2017