Header

Get a block's header by its height or hash.

Returns a single block's header. BlockId can either be a block hash or a block height.

GEThttps://dot-playbook.nownodes.io/blocks/{blockId}/header

Path parameters

blockId*string

Block identifier, as the block height or block hash.

Pattern: ^0[xX][0-9a-fA-F]{1,64}$|[0-9]{1,12}

Response

200400

successful operation

Body

application/json

parentHashstring (hex)

The hash of the parent block.

numberstring (unsignedInteger)

The block's height.

stateRootstring (hex)

The state root after executing this block.

extrinsicRootstring (hex)

The Merkle root of the extrinsics.

digestobject

Request

JavaScriptCurlPython

const response = await fetch('https://dot-playbook.nownodes.io/blocks/{blockId}/header', {
    method: 'GET',
    headers: {},
});
const data = await response.json();

Response

200400

{
  "parentHash": "text",
  "number": "text",
  "stateRoot": "text",
  "extrinsicRoot": "text",
  "digest": {
    "logs": [
      {
        "type": "text",
        "index": "text",
        "value": [
          "text"
        ]
      }
    ]
  }
}