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. Note that the estimate may be significantly more than the amount of gas actually used by the transaction, for a variety of reasons including EVM mechanics and node performance.
- CURL
curl --request POST \
     --url https://evm.confluxrpc.com \
     --header 'accept: application/json' \
     --header 'content-type: application/json' \
     --data '
{
  "id": 1,
  "jsonrpc": "2.0",
  "params": [null,null],
  "method": "eth_estimateGas"
}'
Params
transaction required
Call request
type : object
- accessList accessListtype : array- items[x]AccessListItemtype : object- address addresstype : stringPattern :- ^(NET\d+|CFX|CFXTEST)(:TYPE\..*|):[ABCDEFGHJKMNPRSTUVWXYZ0123456789]{42}$
- storageKeys storageKeystype : array- items[x]H256type : stringPattern :- ^0x[0-9,a-f,A-F]{64}$
 
 
 
- data datatype : stringPattern :- ^0x[0-9a-f]*$
- from fromtype : stringPattern :- ^0x[0-9,a-f,A-F]{40}$
- gas gastype : stringPattern :- ^0x([1-9a-f][0-9a-f]{0,63}|0)$
- gasPrice gasPricetype : stringPattern :- ^0x([1-9a-f][0-9a-f]{0,63}|0)$
- maxFeePerGas maxFeePerGastype : stringPattern :- ^0x([1-9a-f][0-9a-f]{0,63}|0)$
- maxPriorityFeePerGas maxPriorityFeePerGastype : stringPattern :- ^0x([1-9a-f][0-9a-f]{0,63}|0)$
- nonce noncetype : stringPattern :- ^0x([1-9a-f][0-9a-f]{0,63}|0)$
- to totype : stringPattern :- ^0x[0-9,a-f,A-F]{40}$
- transactionType transactionTypetype : stringPattern :- ^0x([1-9a-f][0-9a-f]{0,15}|0)$
- value valuetype : stringPattern :- ^0x([1-9a-f][0-9a-f]{0,63}|0)$
block optional
Block Number or Tags
oneOf
- U64
- BlockHash
- BlockNumber
- string
type : string
Pattern : 
^0x([1-9a-f][0-9a-f]{0,15}|0)$type : object
- blockHash string requiredtype : stringPattern :- ^0x[0-9,a-f,A-F]{64}$
- requireCanonical booleantype : boolean
type : object
- blockNumber string requiredtype : stringPattern :- ^0x([1-9a-f][0-9a-f]{0,15}|0)$
type : string
Possible values : 
- earliest
- latest
- pending
Result
Schema
type : string
Pattern : 
^0x([1-9a-f][0-9a-f]{0,63}|0)$