https://github.com/nikolay-kha/ethereum-local
Simple local Ethereum blockchain
https://github.com/nikolay-kha/ethereum-local
blockchain docker ethereum private-network
Last synced: 7 months ago
JSON representation
Simple local Ethereum blockchain
- Host: GitHub
- URL: https://github.com/nikolay-kha/ethereum-local
- Owner: Nikolay-Kha
- License: unlicense
- Created: 2017-12-29T14:10:14.000Z (almost 8 years ago)
- Default Branch: master
- Last Pushed: 2017-12-29T14:16:15.000Z (almost 8 years ago)
- Last Synced: 2025-01-13T15:14:48.811Z (9 months ago)
- Topics: blockchain, docker, ethereum, private-network
- Language: Shell
- Size: 2.93 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# Simple private Ethereum docker image
This is a simple private Ethereum node running in Docker image. It's totally
unsecure, but simple for development and tests.
Running:
```bash
docker build .
docker run -p 8545:8545 -p 8000:8000 -d
```
Stopping:
```bash
docker stop
```
# Services in image
- http://127.0.0.1:8545 - Ethereum rpcapi.
- http://127.0.0.1:8000 - Simple web interface for Ethereum network. Ethereum
Block Explorer - https://github.com/Capgemini-AIE/ethereum-docker
# Attaching Ethereum Wallet(or Mist)
```bash
/Applications/Ethereum\ Wallet.app/Contents/MacOS/Ethereum\ Wallet --rpc http://127.0.0.1:8545
/Applications/Mist.app/Contents/MacOS/Mist --rpc http://127.0.0.1:8545
```
# Links to solidity editor
https://remix.ethereum.org
https://ethereum.github.io/browser-solidity/
# Simple script
```bash
npm install web3@0.19.0
```
Script connects to rpc api, prints balance, writes and reads from contract.
```node
var Web3 = require('web3');
var web3 = new Web3(new Web3.providers.HttpProvider("http://127.0.0.1:8545"));
var abi = [ { "constant": true, "inputs": [], "name": "getValue", "outputs": [ { "name": "", "type": "int256", "value": "1" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "newValue", "type": "int256" } ], "name": "setValue", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "value", "type": "int256" } ], "name": "subValue", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "value", "type": "int256" } ], "name": "addValue", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" } ];
var coinbase = web3.eth.coinbase;
var balance = web3.eth.getBalance(coinbase);
console.log(balance)
var MyContract = web3.eth.contract(abi);
var myContractInstance = MyContract.at("0x95345baC7b280c406CC5D83a71a77014689718ED");
web3.personal.unlockAccount(web3.eth.accounts[0], "password", 500);
myContractInstance.addValue(10000000000, {from: web3.eth.accounts[0], gas:3000000});
var result = myContractInstance.getValue();
console.log(result);
```