Development ethereum node for testing

This is a development Ethereum test node for testing distributed applications.

Requirements

• Docker
• Docker Compose

Configuration

In order to configure the blockchain, edit the genesis.json file.

Remember to change the NETWORK_ID in .env if you change config.chainId in genesis.json.

Running the node

In order to start the node, use the following command:

docker-compose up --build

In order to stop them:

docker-compose down

Ports

Exposed ports:

• 8545 - JSON RPC HTTP service
• 8546 - JSON RPC Websocket service

Accounts with balance

If you require accounts with balance, there are some of them defined in the genesis file, here is the full list:

Account address	Balance	Private Key
0x01a596Da8aEfA5d6caf233F1Bdaab2Da963B5830	100000000 ETH	3de106f01f3fa595f215f50a0daf2ddd1bd061663b69396783a70dcee9f1f755
0x64eBC0159b5FDCEe8EE623DCc7bF8D296F17826B	100000000 ETH	b6cc360b19ce026fd49052de6fb683b5e10f9a1713320848c1ed9ab2e25ed11d
0xA953F261F8277C6c54951e1E2f04360dEA066fa1	100000000 ETH	8acfcb9c3df4cdadf8837c515e925e5110cf9097474489ad253c358e69abe672
0xa87B7E7E2274A611E3d63AB2d690b6a772036E48	100000000 ETH	1a774dd0f467418e0ebfceb3187b9073642b9a2610be2116b636e244168b5514

Since the min gas price is set to 0, you can make smart contract transactions at 0 cost if you specify the gas price to 0 in the transaction parameters.

Reset

If you want to change the genesis file, type the following (this will reset the blockchain):

docker-compose down -v

and:

docker-compose up --build