How do we know when GB and ETH are fully synced?

[adamb]

This doc says you will need to wait for your Gravity Bridge node and Ethereum Node to fully sync before progressing in the instructions

How do you know when it's synced?

[gadost]

You can check ETH node sync status via curl request:

curl -H "Content-Type:application/json" -X POST -d '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":1}' http://127.0.0.1:8545

where http://127.0.0.1:8545 eth node RPC

example response:

{"jsonrpc":"2.0","id":1,"result":false}

"result":false means your ETH node synced

[gadost]

for gravity:

gravity status 2>&1| jq .SyncInfo.catching_up

response false = gravity synced