Returns the current network id.
none
String - The current network id.
"1": Ethereum Mainnet"2": Morden Testnet (deprecated)"3": Ropsten Testnet"4": Rinkeby Testnet"42": Kovan Testnet// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"net_version","params":[],"id":67}'
// Result
{
"id":67,
"jsonrpc": "2.0",
"result": "3"
}