ethereum-console

ethereum-console

Commandline console for Ethereum nodes.

ethconsole connects to a running Ethereum node via IPC/WS/HTTP and provides an interactive javascript console containing the web3 (1.x) object with admin extensions.

Note that the admin/debug additions are not yet official and may change over time.

Run $ ethconsole --help for help.

Installation / Usage

$ npm install -g ethereum-console
...

$ ethconsole
ETHEREUM CONSOLE
Connecting to node at /Users/xyz/Library/Ethereum/geth.ipc ...
Connection successful!

ΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞ
Network: MAIN
Current block: 5284889 [0xb57031], March 19th 2018, 20:15:03
ΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞ

> web3.admin.nodeInfo()
...

CPP Ethereum Test Interface

ethconsole provides access to the cpp-ethereum test interface, which can be used to test smart contracts that depend on timing and blocks being mined.

# Install the development version of cpp-ethereum on Ubuntu:
# sudo add-apt-repository -y ppa:ethereum/ethereum-qt
# sudo add-apt-repository -y ppa:ethereum/ethereum
# sudo add-apt-repository -y ppa:ethereum/ethereum-dev
# sudo apt-get -y update
# sudo apt-get -y install eth
#
# Start eth in test-mode using data directory /tmp/test 
$ eth --test -d /tmp/test &
# Wait for it to start up...
# Run the example:
$ ethconsole /tmp/test/geth.ipc cppTestExample.js

These testing interfaces exist in cpp-ethereum:

web3.test.setChainParams({}, cb(err, bool))
    set chain parameters using the json chain description
    you can use the function chainParams() from the cppTestExample.js to create such a description
web3.test.mineBlocks(x, cb(err, bool))
    start mining and stop again after exactly x blocks
web3.test.modifyTimestamp(x, cb(err, bool))
    set the timestamp of the current block to x
web3.test.rewindToBlock(x, cb(err, bool))
    rewind the blockchain to block number x
web3.test.addBlock(x, cb(err, bool)
    inject an RLP-encoded block