Returns the currently configured chain id, a value used in replay-protected transaction signing as introduced by EIP-155.
POST https://mainet.rpc.aarmascan.com
Content-Type: application/json
Explain## JSON-RPC over HTTPS POST
curl https://mainet.rpc.aarmascan.com
-X POST \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"eth_chainId","params": [],"id":1}'
## JSON-RPC over WSS
wscat -c ws://mainet.rpc.ctexscan.com
>{"jsonrpc":"2.0","method":"eth_chainId","params": [],"id":1}
Explain{
"jsonrpc": "2.0",
"id": 2889,
"result": "0x1"
}