[Block] eth_getHeaderByHash

Returns information about a header by hash.

Please check Caution-Header before using this API.

JSONRPC: eth_getHeaderByHash

Request

application/json

Body

method stringrequired

Default value: eth_getHeaderByHash

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 32-byte DATA[]required

Hash of a block.

Responses

200

Object - A header object, or null when no header was found. Otherwise, it returns an error.

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

baseFeePerGas hexrequired

The base fee per gas.

difficulty hexrequired

The integer of the difficulty for this block.

extraData DATArequired

The "extra data" field of this block.

gasLimit hexrequired

The maximum gas allowed in this block.

gasUsed hexrequired

The total used gas by all transactions in this block.

hash 32-byte DATArequired

Hash of the block. null when it is a pending block.

logsBloom 256-byte DATArequired

The bloom filter for the logs of the block.

miner 20-byte DATArequired

The address of the beneficiary to whom the mining rewards were given.

mixHash 32-byte DATArequired

The hash which proves combined with the nonce that a sufficient amount of computation has been carried out on this block.

nonce 8-byte DATArequired

The hash of the generated proof-of-work.

number hexrequired

The block number. null when it is a pending block.

parentHash 32-byte DATArequired

Hash of the parent block.

receiptsRoot 32-byte DATArequired

The root of the receipts trie of the block.

sha3Uncles 32-byte DATArequired

The SHA3 of the uncles data in the block.

size hexrequired

Integer of the size of this block in bytes.

stateRoot 32-byte DATArequired

The root of the final state trie of the block.

timestamp hexrequired

The Unix timestamp for when the block was collated.

totalDifficulty hexrequired

The total blockScore of the chain until this block.

transactionsRoot 32-byte DATArequired

The root of the transaction trie of the block.

Example (from schema)

{
  "jsonrpc": "2.0",
  "id": 0,
  "error": {
    "code": -32700,
    "message": "Parse error",
    "data": "string"
  },
  "result": {
    "baseFeePerGas": "0x5d21dba00",
    "difficulty": "0x1",
    "extraData": "0xd8820505846b6c617988676f312e31312e328664617277696e00000000000000f89ed594e733cb4d279da696f30d470f8c04decb54fcb0d2b841f1f600d136f93a5a2d9c12a7a9f6d7ba80a047c3910a2bbc01e38bcce25e48ed2004d21f134df5efaf1f8cbb9a26e1548e57628ab258c935490c11a7cd65324701f843b841444b3efc40071b6eec2c4d2630b483710b8fc7a601432431b0161f489102d1ca02f2ef93153d0be3843aa563d34cee1716163f58711843442aedd94a56303c0400",
    "gasLimit": "0xe8d4a50fff",
    "gasUsed": "0x0",
    "governanceData": "0x",
    "hash": "0xb8deae63002d2b6aa33247c8ef545383ee0fd2282ac9b49dbbb74114389ddb5c",
    "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
    "miner": "0x0000000000000000000000000000000000000000",
    "mixHash": "0x63746963616c2062797a616e74696e65206661756c7420746f6c6572616e6365",
    "nonce": "0x0000000000000000",
    "number": "0x1",
    "parentHash": "0x73255a60e9491b5715f9bfcb7fa1143296810f629836d4cefbd1921d9173d63d",
    "receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
    "reward": "0x0000000000000000000000000000000000000000",
    "size": "0x2d7",
    "stateRoot": "0xedb87f4b0f905a655c80d1768eb22b1eff2405098c4748b8364c869611e02a2b",
    "timestamp": "0x5c99cbd8",
    "totalDifficulty": "0x2",
    "transactions": [],
    "transactionsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
    "uncles": []
  }
}

• curl
• python
• nodejs
• java

• CURL

curl -L -X POST 'http://localhost:8551/eth/block/getHeaderByHash' \
-H 'Content-Type: application/json' \
-H 'Accept: application/json' \
--data-raw '{
  "method": "eth_getHeaderByHash",
  "id": 1,
  "jsonrpc": "2.0",
  "params": [
    "0x1b4"
  ]
}'

Request Collapse all

Base URL

http://localhost:8551

Body

{
  "method": "eth_getHeaderByHash",
  "id": 1,
  "jsonrpc": "2.0",
  "params": [
    "0x1b4"
  ]
}

ResponseClear

Click the Send API Request button above and see the response here!