A simple ethereum blockchain application using of solidity, smart contracts, and the truffle framework for introductory blockchain development.

1. Node environment:

    brew install node
   

2. Solc Compiler: Ethereum smart contracts are compiled with this.

    npm install -g solc
   

3. Go Ethereum (geth): a multipurpose command line tool that runs a full Ethereum node implemented in Go.

   1. Brew Install

      brew tap ethereum/ethereum brew install ethereum

   2. Go Ethereum website

4. Truffle framework: Truffle is development environment and test framework for ethereum. You can install truffle using npm.

    npm install -g truffle
   

5. Ganache: creates a virtual Ethereum blockchain, and it generates some fake accounts that we will use during development

   1. ganache-cli

      npm install -g ganache-cli

   2. Ganache client

      https://truffleframework.com/ganache

6. Install dependencies

    npm install
   

1. Create a new directory for your project

2. Install the above packages

3. Run ganache

    ganache-cli
   

   or start your Ganache application

4. Generate a new truffle project:

    truffle init
    truffle compile
    truffle migrate
   

5. Create the Counter solidity smart contract

    create a Counter.sol file
    modify 1_initial_migration.js file to include Counter contract deploy.
   

6. Create tests for your Counter contract

    make a ./test/test.js file
    add Counter contract functionality tests to test.js 
   

7. Run tests

    truffle test
   

A great guide to all things blockchain development!

A tutorial explaining the simple counter contract we've developed here today!

A tutorial building on the counter contract into a Web3 application!