Optimism · debug

debug_getRawHeader

Returns an RLP-encoded header.

Parameters

Block required

Schema

{
  "title": "Block number or tag",
  "oneOf": [
    {
      "type": "string",
      "title": "Block number",
      "pattern": "^0x(0|[1-9a-f][0-9a-f]*)$"
    },
    {
      "type": "string",
      "title": "Block tag",
      "description": "`earliest`: The lowest numbered block the client has available; `finalized`: The most recent crypto-economically secure block, cannot be re-orged outside of manual intervention driven by community coordination; `safe`: The most recent block that is safe from re-orgs under honest majority and certain synchronicity assumptions; `latest`: The most recent block in the canonical chain observed by the client, this block may be re-orged out of the canonical chain even under healthy/normal conditions; `pending`: A sample next block built by the client on top of `latest` and containing the set of transactions usually taken from local mempool. Before the merge transition is finalized, any call querying for `finalized` or `safe` block MUST be responded to with `-39001: Unknown block` error",
      "enum": [
        "earliest",
        "finalized",
        "safe",
        "latest",
        "pending"
      ]
    }
  ]
}

Result

Header RLP

Schema

{
  "type": "string",
  "title": "hex encoded bytes",
  "pattern": "^0x[0-9a-f]*$"
}

Example request

Endpoint: https://your-op-node.azxa.io

JSON-RPC

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "debug_getRawHeader",
  "params": [
    "0x32026E"
  ]
}

Example response

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0xf90236a09f73691f6dabca4f0a99b05d0a701995506aa311dcaa9ce9833d6f4ca474c162a01dcc…c45990926daada335c9b"
}

Test fixture

Fixture: get-block-n

Request

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "debug_getRawHeader",
  "params": [
    "0x3"
  ]
}

Response

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0xf901f7a0b4874cd66b2070da5d1905b5937e97c82d1891747739b3ebb0f7f6ffc9ad518aa0bd7f…00880000000000000000"
}

cURL

curl -X POST https://your-op-node.azxa.io \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"debug_getRawHeader","params":["0x32026E"]}'