Etherchain Light

Lightweight blockchain explorer for your private Ethereum chain

Etherchain Light is an Ethereum blockchain explorer built with NodeJS, Express and Parity. It does not require an external database and retrieves all information on the fly from a backend Ethereum node.

While there are several excellent Ethereum blockchain explorers available (etherscan, ether.camp and etherchain) they operate on a fixed subset of Ethereum networks, usually the mainnet and testnet. Currently there are no network agnostic blockchain explorers available. If you want to develop Dapps on a private testnet or would like to launch a private / consortium network, Etherchain Light will allow you to quickly explore such chains.

A demo instance connected to the Kovan Ethereum testnet is available at light.etherchain.org. An example of a verified contract source can be found at 0x0cf37d2d45427a1380db12c9b352d6f083143817. An example of a transaction where the corresponding Solidity function name and parameters have been identified can be found at 0x82da63f3d998415b748111e6f1d11051167fb995fdca990acd3cfd5a8b397c20

Current Features

Browse blocks, transactions, accounts and contracts
View pending transactions
Display contract internal calls (call, create, suicide)
Upload & verify contract sources
Show Solidity function calls & parameters (for contracts with available source code)
Display the current state of verified contracts
Named accounts
Advanced transaction tracing (VM Traces & State Diff)
View failed transactions
Live Backend Node status display
Submit signed Transactions to the Network
Support for all Bootswatch skins
Accounts enumeration
Signature verification
Supports IPC and HTTP backend connections
Responsive layout

Planned features

ERC20 Token support

Missing a feature? Please request it by creating a new Issue.

Usage notes

This blockchain explorer is intended for private Ethereum chains. As it does not have a dedicated database all data will be retrived on demand from a backend Parity node. Some of those calls are ressource intensive (e.g. retrieval of the full tx list of an account) and do not scale well for acounts with a huge number of transactions. We currently develop the explorer using the Kovan testnet but it will work with every Parity compatible Ethereum network configuration. The explorer is still under heavy development, if you find any problems please create an issue or prepare a pull request.

Getting started

Setup from source

Supported OS: Ubuntu 16.04

Supported Ethereum backend nodes: Parity (Geth is currently not supported as it does not allow account and received/sent tx enumeration)

Setup a nodejs & npm environment
Install the latest version of the Parity Ethereum client
Start parity using the following options: parity --chain=<yourchain> --tracing=on --fat-db=on --pruning=archive
Clone this repository to your local machine: git clone https://github.com/gobitfly/etherchain-light --recursive (Make sure to include --recursive in order to fetch the solc-bin git submodule)
Install all dependencies: npm install
Rename config.js.example into config.js and adjust the file to your local environment
Start the explorer: npm start
Browse to http://localhost:3000

Setup using docker

Build then run the container

docker build -t etherchain-light .
docker run -p 3000:3000 etherchain-light

Or directly bind the config.js file to avoid rebuilding the image

docker run -p "3000:3000" \
    -v "$(pwd)/config.js":/usr/src/app/config.js \
    etherchain-light

Setup using docker-compose

docker-compose up

Methw/explorer