itsdevcoffee/eos-dev-setup.md

## eos-dev-setup.md

      
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              eos-dev-setup.md
            
          
    Getting started with EOS Smart Contracts

There are two options that I'll go over for getting nodeos up and running.

Docker (Recommended)
Local Automated Build

Install Docker

Click here to install Docker
EOSIO Dev Docker image

Run the following commands:

docker pull eosio/eos-dev
sudo docker run --rm --name eosio -d -p 8888:8888 -p 9876:9876 -v /tmp/work:/work -v /tmp/eosio:/mnt/dev/data eosio/eos-dev /bin/bash -c "nodeos -e -p eosio --plugin eosio::wallet_api_plugin --plugin eosio::wallet_plugin --plugin eosio::producer_plugin --plugin eosio::history_plugin --plugin eosio::chain_api_plugin --plugin eosio::history_api_plugin --plugin eosio::http_plugin -d /mnt/dev/data --http-server-address=0.0.0.0:8888 --access-control-allow-origin=* --contracts-console"
To follow the blocks being produced run the following: sudo docker logs -f eosio

You can now visit http://localhost:8888/v1/chain/get_info and should JSON data describing the chain.
NODEOS

System requirements for building a local copy:

Amazon 2017.09 and higher.
Centos 7.
Fedora 25 and higher (Fedora 27 recommended).
Mint 18.
Ubuntu 16.04 (Ubuntu 16.10 recommended).
MacOS Darwin 10.12 and higher (MacOS 10.13.x recommended).


git clone https://github.com/EOSIO/eos --recursive
cd eos
./eosio_build.sh
cd build
sudo make install

CLEOS

Command-line tool for manging wallets and interacting with the blockchain


alias cleos='docker exec eosio /opt/eosio/bin/cleos --wallet-url http://localhost:8888'
cleos --help to get a list of commands.
Guide about accounts and wallets on EOSIO

Wallets and Accounts

Create a wallet and save your master password:
cleos wallet create
Create another wallet with a name and save your master password:
cleos wallet create -n devcoffee
List all your wallets
cleos wallet list
Lock a specific wallet
cleos wallet lock -n devcoffee
Unlock a specific wallet
cleos wallet unlock -n devcoffee --password [YOUR_MASTER_PASSWORD]
Create a private and public key (Make sure to save the keys somewhere secure)
cleos create key
Import the private key into your wallet
cleos wallet import -n devcoffee [YOUR_MASTER_PASSWORD]
Creating accounts

Create an account name to use for our smart contract
cleos create account eosio user [PUBLIC_KEY]
List all of your accounts
cleos get accounts [PUBLIC_KEY]
Create your first Smart Contract

Creating a smart contract is rather simple. The library eosio has a lot of functions that make things easy.


Command for creating your first smart contract:  eosiocpp -n ping


cd into the ping directory: cd ping


Now open up the code with your favorite text editor


You should see the following boilerplate code


#include <eosiolib/eosio.hpp>

using namespace eosio;

class hello : public eosio::contract {
  public:
      using contract::contract;

      /// @abi action 
      void hi( account_name user ) {
         print( "Hello, ", name{user} );
      }
};

EOSIO_ABI( hello, (hi) )


Paste the following to ping.cpp

#include <eosiolib/eosio.hpp>

using namespace eosio;

class pingpong : public eosio::contract {
  public:
      using contract::contract;

      /// @abi action
      void ping( account_name user ) {
         print( "Pong, ", name{user} );
      }
};

EOSIO_ABI( pingpong, (ping) )


Change Hello to Pong for funz.
Create a new account for the smart contract (Make sure your wallet is unlocked) cleos create account eosio ping.code [PUBLIC_KEY]
Create a new file called compile.sh in the ping directory. Paste the following code in the file:

eosiocpp -o ping.wast ping.cpp
eosiocpp -g ping.abi ping.cpp
cleos set contract ping.code ../ping -p ping.code


Now run sh compile.sh. This will compile your smart contract and publish it to your local blockchain.
You can interact with your smart contract by running: cleos push action ping.code ping '["user"]' -p user
Congratulations! You just deployed and executed your first smart contract.
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