eth_estimateGas

Generates and returns an estimate of how much gas is necessary to allow the transaction to complete. The transaction will not be added to the blockchain.

Parameters

1. Object - The transaction call object with the following:

   • from(optional): the address the transaction is sent from.

   • to(optional): the address the transaction is sent to.

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

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

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

2. Quantity or tag - choose 1 of the following options:

   • A hexadecimal block number.

   • "latest" - the latest mined block.

   • "safe" - the latest safe head block.

   • "finalized" - the latest finalized block.

   • "pending" - the pending state/transactions.

Sample Request

curl https://lb.nodies.app/v1/<INSERT URL> \
   -H "x-api-key: <API-KEY>" \
   -X POST \
   -H "Content-Type: application/json" \
   -d '{ 
  "jsonrpc": "2.0",
  "method": "eth_estimateGas",
  "params": [
    {
      "from": "0x7106CD6432Ab5Fd1C215514C624fFaDeaf667251",
      "to": "0xFbfca2179A2e21414B2ac578D2b392835C19d2A1",
      "value": "0x18"
    },
    "latest"
  ],
  "id": 1
}'

Sample Response

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x523f"
}