[Filter] eth_newBlockFilter

Creates a filter in the node, to notify when a new block arrives. To check if the state has changed, call eth_getFilterChanges.

JSONRPC: eth_newBlockFilter

Request

application/json

Body

method stringrequired

Default value: eth_newBlockFilter

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

A filter id.

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 hex

A filter id.

Example (from schema)

{
  "jsonrpc": "2.0",
  "id": 0,
  "error": {
    "code": -32700,
    "message": "Parse error",
    "data": "string"
  },
  "result": "0xc2f2e8168a7e38b5d979d0f7084130ee"
}

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