Eos

Welcome to the EOS.IO source code repository!

Getting Started

The following instructions overview the process of getting the software, building it, running a simple test network that produces blocks, account creation and uploading a sample contract to the blockchain.

Setting up a build/development environment

This project is written primarily in C++14 and uses CMake as its build system. An up-to-date Clang and the latest version of CMake is recommended.

Dependencies:

Clang 4.0.0
CMake 3.5.1
Boost 1.64
OpenSSL
LLVM 4.0
secp256k1-zkp (Cryptonomex branch)
binaryen

Clean install Ubuntu 16.10

Install the development toolkit:

sudo apt-get update
wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
sudo apt-get install clang-4.0 lldb-4.0 cmake make \
                     libbz2-dev libssl-dev libgmp3-dev \
                     autotools-dev build-essential \
                     libbz2-dev libicu-dev python-dev \
                     autoconf libtool git

Install Boost 1.64:

cd ~
wget -c 'https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download' -O boost_1.64.0.tar.bz2
tar xjf boost_1.64.0.tar.bz2
cd boost_1_64_0/
echo "export BOOST_ROOT=$HOME/opt/boost_1_64_0" >> ~/.bash_profile
source ~/.bash_profile
./bootstrap.sh "--prefix=$BOOST_ROOT"
./b2 install
source ~/.bash_profile

Install secp256k1-zkp (Cryptonomex branch):

cd ~
git clone https://github.com/cryptonomex/secp256k1-zkp.git
cd secp256k1-zkp
./autogen.sh
./configure
make
sudo make install

Also, to use the WASM compiler, eos has an external dependency on binaryen:

cd ~
git clone https://github.com/WebAssembly/binaryen.git
cd ~/binaryen
git checkout tags/1.37.14
cmake . && make

Add BINARYEN_ROOT to your .bash_profile:

echo "export BINARYEN_ROOT=~/binaryen" >> ~/.bash_profile
source ~/.bash_profile

By default LLVM and clang do not include the WASM build target, so you will have to build it yourself:

mkdir  ~/wasm-compiler
cd ~/wasm-compiler
git clone --depth 1 --single-branch --branch release_40 https://github.com/llvm-mirror/llvm.git
cd llvm/tools
git clone --depth 1 --single-branch --branch release_40 https://github.com/llvm-mirror/clang.git
cd ..
mkdir build
cd build
cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=.. -DLLVM_TARGETS_TO_BUILD= -DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=WebAssembly -DCMAKE_BUILD_TYPE=Release ../
make -j4 install

macOS Sierra 10.12.6

macOS additional Dependencies:

Brew
Newest XCode

Upgrade your XCode to the newest version:

xcode-select --install

Install homebrew:

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Install the dependencies:

brew update
brew install git automake libtool boost openssl llvm

Install secp256k1-zkp (Cryptonomex branch):

cd ~
git clone https://github.com/cryptonomex/secp256k1-zkp.git
cd secp256k1-zkp
./autogen.sh
./configure
make
sudo make install

Install binaryen v1.37.14:

cd ~
git clone https://github.com/WebAssembly/binaryen.git
cd ~/binaryen
git checkout tags/1.37.14
cmake . && make

Add BINARYEN_ROOT to your .bash_profile:

echo "export BINARYEN_ROOT=~/binaryen" >> ~/.bash_profile
source ~/.bash_profile

Build LLVM and clang for WASM:

mkdir  ~/wasm-compiler
cd ~/wasm-compiler
git clone --depth 1 --single-branch --branch release_40 https://github.com/llvm-mirror/llvm.git
cd llvm/tools
git clone --depth 1 --single-branch --branch release_40 https://github.com/llvm-mirror/clang.git
cd ..
mkdir build
cd build
cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=.. -DLLVM_TARGETS_TO_BUILD= -DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=WebAssembly -DCMAKE_BUILD_TYPE=Release ../
make -j4 install

Add WASM_LLVM_CONFIG and LLVM_DIR to your .bash_profile:

echo "export WASM_LLVM_CONFIG=~/wasm-compiler/llvm/bin/llvm-config" >> ~/.bash_profile
echo "export LLVM_DIR=/usr/local/Cellar/llvm/4.0.1/lib/cmake/llvm" >> ~/.bash_profile
source ~/.bash_profile

Building and running a node

Getting the code

To download all of the code, download Eos and a recursion or two of submodules. The easiest way to get all of this is to do a recursive clone:

git clone https://github.com/eosio/eos --recursive

If a repo is cloned without the --recursive flag, the submodules can be retrieved after the fact by running this command from within the repo:

git submodule update --init --recursive

Using the WASM compiler to perform a full build of the project

The WASM_LLVM_CONFIG environment variable is used to find our recently built WASM compiler. This is needed to compile the example contracts inside eos/contracts folder and their respective tests.

cd ~
git clone https://github.com/eosio/eos --recursive
mkdir -p ~/eos/build && cd ~/eos/build
cmake -DBINARYEN_BIN=~/binaryen/bin ..
make -j4

Out-of-source builds are also supported. To override clang's default choice in compiler, add these flags to the CMake command:

-DCMAKE_CXX_COMPILER=/path/to/c++ -DCMAKE_C_COMPILER=/path/to/cc

For a debug build, add -DCMAKE_BUILD_TYPE=Debug. Other common build types include Release and RelWithDebInfo.

To run the test suite after building, run the chain_test executable in the tests folder.

EOS comes with a number of programs you can find in ~/eos/build/programs. They are listed below:

eosd - server-side blockchain node component
eosc - command line interface to interact with the blockchain
eos-walletd - EOS wallet
launcher - application for nodes network composing and deployment; more on launcher

Creating and launching a single-node testnet

After successfully building the project, the eosd binary should be present in the programs/eosd directory. Go ahead and run eosd -- it will probably exit with an error, but if not, close it immediately with Ctrl-C. Note that eosd created a directory named data-dir containing the default configuration (config.ini) and some other internals. This default data storage path can be overridden by passing --data-dir /path/to/data to eosd.

Edit the config.ini file, adding the following settings to the defaults already in place:

# Load the testnet genesis state, which creates some initial block producers with the default key
genesis-json = /path/to/eos/source/genesis.json
# Enable production on a stale chain, since a single-node test chain is pretty much always stale
enable-stale-production = true
# Enable block production with the testnet producers
producer-name = inita
producer-name = initb
producer-name = initc
producer-name = initd
producer-name = inite
producer-name = initf
producer-name = initg
producer-name = inith
producer-name = initi
producer-name = initj
producer-name = initk
producer-name = initl
producer-name = initm
producer-name = initn
producer-name = inito
producer-name = initp
producer-name = initq
producer-name = initr
producer-name = inits
producer-name = initt
producer-name = initu
# Load the block producer plugin, so you can produce blocks
plugin = eos::producer_plugin
# Wallet plugin
plugin = eos::wallet_api_plugin
# As well as API and HTTP plugins
plugin = eos::chain_api_plugin
plugin = eos::http_plugin

Now it should be possible to run eosd and see it begin producing blocks. At present, the P2P code is not implemented, so only single-node configurations are possible. When the P2P networking is implemented, these instructions will be updated to show how to create an example multi-node testnet.

When running eosd you should get log messages similar to below. It means the blocks are successfully produced.

1575001ms thread-0   chain_controller.cpp:235      _push_block          ] initm #1 @2017-09-04T04:26:15  | 0 trx, 0 pending, exectime_ms=0
1575001ms thread-0   producer_plugin.cpp:207       block_production_loo ] initm generated block #1 @ 2017-09-04T04:26:15 with 0 trxs  0 pending
1578001ms thread-0   chain_controller.cpp:235      _push_block          ] initc #2 @2017-09-04T04:26:18  | 0 trx, 0 pending, exectime_ms=0
1578001ms thread-0   producer_plugin.cpp:207       block_production_loo ] initc generated block #2 @ 2017-09-04T04:26:18 with 0 trxs  0 pending
1581001ms thread-0   chain_controller.cpp:235      _push_block          ] initd #3 @2017-09-04T04:26:21  | 0 trx, 0 pending, exectime_ms=0
1581001ms thread-0   producer_plugin.cpp:207       block_production_loo ] initd generated block #3 @ 2017-09-04T04:26:21 with 0 trxs  0 pending
1584000ms thread-0   chain_controller.cpp:235      _push_block          ] inite #4 @2017-09-04T04:26:24  | 0 trx, 0 pending, exectime_ms=0
1584000ms thread-0   producer_plugin.cpp:207       block_production_loo ] inite generated block #4 @ 2017-09-04T04:26:24 with 0 trxs  0 pending
1587000ms thread-0   chain_controller.cpp:235      _push_block          ] initf #5 @2017-09-04T04:26:27  | 0 trx, 0 pending, exectime_ms=0

Accounts and smart contracts

EOS comes with example contracts that can be uploaded and run for testing purposes. To upload and test them, please follow the steps below.

Example smart contracts

To publish sample smart contracts you need to create accounts for them.

Run the node:

cd ~/eos/build/programs/eosd/
./eosd

Run eos-walletd and importing account key

Before running API commands you need to import the private key of an account you will be authorizing the transactions under into the EOS wallet.

As you've previously added plugin = eos::wallet_api_plugin into config.ini, EOS wallet will be running as a part of eosd process.

For testing purposes you can use a pre-created account inita from the genesis.json file.

To login you need to run a command importing an active (not owner!) private key from inita account (you can find it in ~/eos/build/programs/eosd/data-dir/config.ini) to the wallet.

cd ~/eos/build/programs/eosc/
./eosc wallet create # Outputs a password that you need to save to be able to lock/unlock the wallet
./eosc wallet import 5KQwrPbwdL6PhXujxW37FSSQZ1JiwsST4cqQzDeyXtP79zkvFD3

Now you can issue API commands under inita authority.

Create accounts for your smart contracts

First, generate public/private key pairs for the owner_key and active_key. You will need them to create an account:

cd ~/eos/build/programs/eosc/
./eosc create key
./eosc create key

You will get two pairs of a public and private key:

Private key: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Public key:  XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Save the values for future reference.

Run create command where PUBLIC_KEY_1 and PUBLIC_KEY_2 are the values generated by the create key command:

./eosc create account inita currency PUBLIC_KEY_1 PUBLIC_KEY_2

You should get a json response back with a transaction ID confirming it was executed successfully.

Check that account was successfully created:

./eosc get account currency

You should get a response similar to this:

{
  "name": "currency",
  "eos_balance": 0,
  "staked_balance": 1,
  "unstaking_balance": 0,
  "last_unstaking_time": "2106-02-07T06:28:15"
}

Upload sample contract

Before uploading a contract, you can verify that there is no current contract:

./eosc get code currency 
code hash: 0000000000000000000000000000000000000000000000000000000000000000

With an account for a contract created, you can upload a sample contract:

./eosc set contract currency ../../contracts/currency/currency.wast ../../contracts/currency/currency.abi

As a response you should get a json with a transaction_id field. Your contract was successfully uploaded!

You can also verify that the code has been set:

./eosc get code currency
code hash: 9b9db1a7940503a88535517049e64467a6e8f4e9e03af15e9968ec89dd794975

Next you can verify that the currency contract has the proper initial balance:

./eosc get table currency currency account
{
  "rows": [{
     "account": "account",
     "balance": 1000000000
     }
  ],
  "more": false
}

Push a message to a sample contract

To send a message to a contract you need to create a new user account who will be sending the message.

Firstly, generate the keys for the account:

cd ~/eos/build/programs/eosc/
./eosc create key
./eosc create key

And then create the tester account:

./eosc create account inita tester PUBLIC_USER_KEY_1 PUBLIC_USER_KEY_2

After this you can send a message to the contract:

./eosc push message currency transfer '{"from":"currency","to":"inita","amount":50}' --scope currency,inita --permission currency@active

As a confirmation of a successfully submitted transaction you will get a json with a transaction_id field.

Reading Currency Contract Balance

./eosc get table inita currency account
{
  "rows": [{
      "account": "account",
      "balance": 50 
       }
    ],
  "more": false
}
./eosc get table currency currency account
{
  "rows": [{
      "account": "account",
      "balance": 999999950
    }
  ],
  "more": false
}

Running local testnet

To run a local testnet you can use a launcher application provided in ~/eos/build/programs/launcher folder.

For testing purposes you will run 2 local production nodes talking to each other.

cd ~/eos/build
cp ../genesis.json ./
./programs/launcher/launcher -p2 -s testnet.json --skip-signature -l local

This command will generate 2 data folder for each instance of the node: tn_data_0 and tn_data_1, as well as testnet.json file for the testnet configuration.

You should see a following response:

adding hostname ip-XXX-XXX-XXX
found interface 127.0.0.1
found interface XXX.XX.XX.XX
spawning child, programs/eosd/eosd --skip-transaction-signatures --data-dir tn_data_0
spawning child, programs/eosd/eosd --skip-transaction-signatures --data-dir tn_data_1

To confirm the nodes are running, run following eosc commands:

~/eos/build/programs/eosc
./eosc -p 8888 get info
./eosc -p 8889 get info

For each you should get a json with a blockchain information.

You can read more on launcher and its settings here

Run eos in docker

Simple and fast setup of EOS on Docker is also available. Firstly, install dependencies:

Docker
Docker-compose
Docker-volumes

Build eos image

git clone https://github.com/EOSIO/eos.git --recursive
cd eos
cp genesis.json Docker 
docker build -t eosio/eos -f Docker/Dockerfile .

We recommend 6GB+ of memory allocated to Docker to successfully build the image.

Now you can start the Docker container:

sudo rm -rf /data/store/eos # options 
sudo mkdir -p /data/store/eos
docker-compose -f Docker/docker-compose.yml up

Get chain info:

curl http://127.0.0.1:8888/v1/chain/get_info

Run contract in docker example

You can run the eosc commands via docker exec command. For example:

docker exec docker_eos_1 eosc contract exchange build/contracts/exchange/exchange.wast build/contracts/exchange/exchange.abi

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README.md

README.md

Eos

Getting Started

Setting up a build/development environment

Clean install Ubuntu 16.10

macOS Sierra 10.12.6

Building and running a node

Getting the code

Using the WASM compiler to perform a full build of the project

Creating and launching a single-node testnet

Accounts and smart contracts

Example smart contracts

Run eos-walletd and importing account key

Create accounts for your smart contracts

Upload sample contract

Push a message to a sample contract

Reading Currency Contract Balance

Running local testnet

Run eos in docker

Run contract in docker example

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README.md

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README.md

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Eos

Getting Started

Setting up a build/development environment

Clean install Ubuntu 16.10

macOS Sierra 10.12.6

Building and running a node

Getting the code

Using the WASM compiler to perform a full build of the project

Creating and launching a single-node testnet

Accounts and smart contracts

Example smart contracts

Run eos-walletd and importing account key

Create accounts for your smart contracts

Upload sample contract

Push a message to a sample contract

Reading Currency Contract Balance

Running local testnet

Run eos in docker

Run contract in docker example