curl --request POST \
--url https://bsc-mainnet.core.chainstack.com/35848e183f3e3303c8cfeacbea831cab \
--header 'Content-Type: application/json' \
--data '{
"id": 1,
"jsonrpc": "2.0",
"method": "eth_chainId",
"params": []
}'
{
"jsonrpc": "<string>",
"id": 123,
"result": "<string>"
}
curl --request POST \
--url https://bsc-mainnet.core.chainstack.com/35848e183f3e3303c8cfeacbea831cab \
--header 'Content-Type: application/json' \
--data '{
"id": 1,
"jsonrpc": "2.0",
"method": "eth_chainId",
"params": []
}'
{
"jsonrpc": "<string>",
"id": 123,
"result": "<string>"
}
none
quantity
— EIP-155 Chain IDeth_chainId
code examplesconst { Web3 } = require("web3");
const NODE_URL = "CHAINSTACK_NODE_URL";
const web3 = new Web3(NODE_URL);
async function getChainId() {
const chain = await web3.eth.getChainId();
console.log(chain);
}
getChainId();
eth_chainId
method in Ethereum is to determine which chain a user is connected to when using a DApp with the MetaMask browser extension. This can be useful to provide a customized user experience based on the specific chain that the user is interacting with.The network Chain ID
The response is of type object
.
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