I've tried to access geth by rpc.

$ geth --dev --datadir mydir --rpc --rpcaddr "localhost" --rpcport "8545" --rpccorsdomain "*" console

However it has returned the error. Could you tell me how to solve the problem?


Update I've got connected by rpc, however on the browser-solidity I cannot connect my private node.

enter image description here

  • What is the JSON-RPC request you executed? Aug 6, 2016 at 2:17
  • http://localhost:8545
    – Toshi
    Aug 6, 2016 at 2:20
  • Is the answer correct?
    – Toshi
    Aug 6, 2016 at 2:21

1 Answer 1


I suspect it is the command you are using.

This works:

user@Kumquat:~$ curl -X POST --data '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":1}' http://localhost:8545

And this does not work:

user@Kumquat:~$ curl '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":1}' http://localhost:8545
curl: (3) [globbing] nested brace in column 50

Here are some simple commands you can test with:

user@Kumquat:~$ curl -X POST --data '{"jsonrpc":"2.0","method":"eth_coinbase","params":[],"id":1}' http://localhost:8545

user@Kumquat:~$ curl -X POST --data '{"jsonrpc":"2.0","method":"eth_gasPrice","params":[],"id":1}' http://localhost:8545
  • $ curl -X POST --data '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":1}' http://localhost:8545 {"jsonrpc":"2.0","id":1,"result":false}
    – Toshi
    Aug 6, 2016 at 2:25
  • Yup. Your command is working perfectly. Your private node is not syncing and so the result is false. Aug 6, 2016 at 2:26
  • It seems doesn't work. I'll try debugging it.
    – Toshi
    Aug 6, 2016 at 2:27
  • 1
    $ curl -X POST --data '{"jsonrpc":"2.0","method":"eth_coinbase","params":[],"id":1}' localhost:8545 {"jsonrpc":"2.0","id":1,"result":"0x86d13ef4629e9b855a8045cd8b2f67ba6a736ba6"}
    – Toshi
    Aug 6, 2016 at 3:42
  • 1
    I've questioned! Plz check it:) ethereum.stackexchange.com/questions/7796/…
    – Toshi
    Aug 6, 2016 at 4:00

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