admin_nodeInfo

The nodeInfo administrative property can be queried for all the information known about the running Klaytn node at the networking granularity. These include general information about the node itself as a participant of the devp2p P2P overlay protocol, as well as specialized information added by each of the running application protocols, e.g., klay.

JSONRPC: admin_nodeInfo

Request

application/json

Body

method stringrequired

Default value: admin_nodeInfo

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 array

Responses

200

The node information.

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 object

The node information.

Example (from schema)

{
  "jsonrpc": "2.0",
  "id": 0,
  "error": {
    "code": -32700,
    "message": "Parse error",
    "data": "string"
  },
  "result": {
    "id": "377ef808aff73a397d133b3bf160df586054c98c0e6a65c8fce9560e6a0632bc975419f461803d27f28ee270287113cc2359225814debc1bfb2f811061e14c5d",
    "name": "Klaytn/vvX.X.X/XXXX-XXXX/goX.X.X",
    "kni": "kni://377ef808aff73a397d133b3bf160df586054c98c0e6a65c8fce9560e6a0632bc975419f461803d27f28ee270287113cc2359225814debc1bfb2f811061e14c5d@[::]:32323?discport=0",
    "ip": "::",
    "ports": {
      "discovery": 0,
      "listener": 32323
    },
    "listenAddr": "[::]:32323",
    "protocols": {
      "istanbul": {
        "network": 1000,
        "difficulty": 1,
        "genesis": "0x06806bd8b1e086dfb7098a289da07037a3af58e793d205d20f61c88eeea9351d",
        "config": {
          "chainId": 1000,
          "istanbul": {
            "epoch": 30000,
            "policy": 0,
            "sub": 7
          },
          "isBFT": true,
          "unitPrice": 25000000000,
          "deriveShaImpl": 0
        },
        "head": "0x06806bd8b1e086dfb7098a289da07037a3af58e793d205d20f61c88eeea9351d"
      }
    }
  }
}

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