local-debugging.md

Example: Local Debugging

Local Connections : EthereumJS <- EthereumJS

For debugging on networking issues there are two custom npm start scripts with appropriate settings.

Start a first client listening on the default port and using the default data directory with:

DEBUG=ethjs,devp2p:* npm run client:start:dev1
DEBUG=ethjs,devp2p:* npm run client:start:dev1 -- --datadir=datadir-dev1

Then take the enode address from the started client instance (use 127.0.0.1 for the IP address) and start a second client with:

DEBUG=ethjs,devp2p:* npm run client:start:dev2 -- --bootnodes=enode://[DEV1_NODE_ID]@127.0.0.1:30303

This second client is using './datadir-dev2' for its data directory.

Local Connection: EthereumJS <- Geth

To connect Geth to a running EthereumJS instance start a client with:

DEBUG=ethjs,devp2p:* npm run client:start:dev1

Then connect with your Geth instance via:

geth --maxpeers=1 --bootnodes=enode://[DEV1_NODE_ID]@127.0.0.1:30303

Local Connection: Geth <- EthereumJS

Start your Geth instance:

geth [--syncmode=full] [--verbosity=5]

Then connect with your EthereumJS instance via:

DEBUG=ethjs,devp2p:* npm run client:start:dev2 -- --bootnodes=enode://[GETH_NODE_ID]@127.0.0.1:30303