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[Transaction] klay_createAccessList

This method creates an accessList based on a given Transaction. The accessList contains all storage slots and addresses read and written by the transaction, except for the sender account and the precompiles. This method uses the same transaction call object and blockNumberOrTag object as caver.rpc.klay.call. An accessList can be used to release stuck contracts that became inaccessible due to gas cost increases. Adding an accessList to your transaction does not necessary result in lower gas usage compared to a transaction without an access list.

JSONRPC: klay_createAccessList

Request

Body

    method stringrequired

    Default value: klay_createAccessList

    Method name

    id int64required

    Default value: 1

    Request ID, Random or Auto incrementation

    jsonrpc stringrequired

    Default value: 2.0

    JSON-RPC Version (2.0)

    params

    undefined[]

    required

  • Array [

  • CallObject

    object

    The transaction call object. See the next table for the object's properties.

    from 20-byte DATA

    (optional) The address the transaction is sent from.

    to 20-byte DATA

    (optional when testing the deployment of a new contract) The address the transaction is directed to.

    gas hex

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

    gasPrice hex

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

    value hex

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

    input DATA

    (optional) Hash of the method signature and encoded parameters. It replaces data field, but 'data` field is still supported for backward compatibility.

    BlockParameter

    object

    (optional) A block number, blockhash or the block tag string (latest or earliest). If omitted, latest will be used.

    oneOf

    number

  • ]

Responses

returns an object includes an access list

Schema

    jsonrpc stringrequired

    Default value: 2.0

    id int64required

    error

    object

    code int64required

    A Number that indicates the error type that occurred. This MUST be an integer.

    | code | message | description | |-----|-----|-------| | -32700 | Parse error | invalid JSON was received by the server. An error occurred on the server while parsing the JSON text. | |-32602 | Invalid params | Invalid method parameter(s). |

    message string

    A String providing a short description of the error. The message SHOULD be limited to a concise single sentence.

    data string

    A Primitive or Structured value that contains additional information about the error. This may be omitted. The value of this member is defined by the Server (e.g. detailed error information, nested errors etc.).

    result

    object

    accessList

    object[]

    required

  • Array [

  • oldestBlock stringrequired

    Lowest number block of returned range.

    reward array[]required

    A two-dimensional array of effective priority fees per gas at the requested block percentiles.

    baseFeePerGas string[]required

    An array of block base fees per gas. This includes the next block after the newest of the returned range, because this value can be derived from the newest block. Zeroes are returned for pre-EIP-1559 blocks.

    gasUsedRatio hex[]required

    An array of gasUsed/gasLimit in the block.

  • ]

  • gasUsed hexrequired
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