Blockchain By Example

RPC tests

You can communicate with your nodes over RPC (outside of the Geth Terminal) to execute methods defined in web3 API. For instance, we can use CURL or some other command-line HTTP-fetching utility to request Geth's version over RPC as follows:

curl -X POST --data '{"jsonrpc":"2.0","method":"web3_clientVersion","params":[],"id":67}' -H 'content-type: text/plain;' http://127.0.0.1:8545/ {"jsonrpc":"2.0","id":67,"result":"Geth/v1.7.2-stable-1db4ecdc/linux-amd64/go1.9"}}