eth_call

Executes a new message call immediately without creating a transaction on the block chain.

This is one of the most commonly used API calls. It is used to read from the blockchain which includes executing smart contracts, but does not publish anything to the blockchain. This call does not consume any Ether.

Parameters

• Object - The transaction call object

  • from: DATA, 20 Bytes - (optional) The address the transaction is sent from.

  • to: DATA, 20 Bytes - The address the transaction is directed to.

  • gas: QUANTITY - (optional) Integer of the gas provided for the transaction execution. eth_call consumes zero gas, but this parameter may be needed by some executions.

• gasPrice: QUANTITY - (optional) Integer of the gasPrice used for each paid gas.

• value: QUANTITY - (optional) Integer of the value sent with this transaction

• data: DATA - (optional) Hash of the method signature and encoded parameters. For details see Ethereum Contract ABI

• QUANTITY|TAG - integer block number, or the string "latest", "earliest" or "pending" (see the default block parameter), OR the blockHash (in accordance with EIP-1898). Learn more here.

params: [
    {
        "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
        "to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
        "gas": "0x76c0",
        "gasPrice": "0x9184e72a000",
        "value": "0x9184e72a",
        "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
    }, 
    "latest"
]

Returns

DATA - the return value of executed contract.

Request

web3.js

const Web3 = require("web3");

async function main() {

	const Web3 = require('web3')
        const rpcURL = '1DLT-IP-ADDRESS' // Your RPC URL goes here
        const web3 = new Web3(rpcURL)
        	
	// Query the blockchain (replace example parameters)
    	const data = await web3.eth.call(
	    {
	        "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
	        "to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
	        "gas": "0x76c0",
	        "gasPrice": "0x9184e72a000",
	        "value": "0x9184e72a",
	        "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
	    }, 
	    "latest"
	); 
    
	// Print the output to console
	console.log(data);
   }

main();

ethers.js

const { ethers } = require("ethers");
async function main() {
 
    // Initialize an ethers instance
    const provider = new ethers.providers.JsonRpcProvider("1DLT-IP-ADDRESS");

	// Query the blockchain (replace example parameters)
    const data = await provider.call(
	    {
	        "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
	        "to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
	        "gas": "0x76c0",
	        "gasPrice": "0x9184e72a000",
	        "value": "0x9184e72a",
	        "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
	    }, 
	    "latest"
	); 
    
	// Print the output to console
	console.log(data);
   }

main()

Curl

curl 1DLT-IP-ADDRESS \
-X POST \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"eth_call","params":[{"from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155","to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567","gas": "0x76c0","gasPrice": "0x9184e72a000","value": "0x9184e72a","data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"}, "latest"],"id":1}'

Result

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x"
}