[Account] klay_isContractAccount

Returns true if an input account has a non-empty codeHash at the time of a specific block number. It returns false if the account is an EOA or a smart contract account which doesn't have codeHash.

NOTE: In versions earlier than Klaytn v1.7.0, only integer block number, the string "earliest" and "latest" are available

JSONRPC: klay_isContractAccount

Request

application/json

Body

method stringrequired

Default value: klay_isContractAccount

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 [

Address 20-byte DATA

Address

BlockNumberOrHashOrTag

object

oneOf

IntegerBlockNumber

number

HexadecimalBlockNumber

string

BlockTag

string

BlockHash

string

]

Responses

200

Returns true if an input account has a non-empty codeHash at the time of a specific block number.

application/json

Schema

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 boolean

true means the input parameter is an existing smart contract address.

Example (from schema)

{
  "jsonrpc": "2.0",
  "id": 0,
  "error": {
    "code": -32700,
    "message": "Parse error",
    "data": "string"
  },
  "result": true
}

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