debug_dumpBlock - Robinhood

debug_dumpBlock. Retrieves the full state of a block as a JSON dump for debugging.

debug_dumpBlock - robinhood [Value: 40CU]
Retrieves the full state of every account in the database as of a given block, including balances, nonces, code, and storage
Use cases

Use cases

  • Produce a full state snapshot of a block for migration
  • Debug unexpected state by inspecting accounts at a specific height
  • Seed a local test chain with the exact state of a block
Constraints

Constraints

  • Very resource-intensive on chains with a large state trie
  • Requires an archive node for blocks other than recent ones
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Language

Request
Examples
curl https://lb.drpc.live/robinhood/{API-KEY} \
-X POST \
-H "Content-Type: application/json" \
-d '{"method":"debug_dumpBlock",
    "params":["0xc3007d"],
    "id":1,
    "jsonrpc":"2.0"}'
Copy
Response
200
{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "root": "0x9f73691f6dabca4f0a99b05d0a701995506aa311dcaa9ce9833d6f4ca474c162",
    "accounts": {
      "0x0599d52c37544c07605f470e5e20c1b266de8588": {
        "balance": "1000000000000000000",
        "nonce": 4,
        "root": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
        "codeHash": "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a47",
        "code": "0x",
        "storage": {}
      }
    }
  }
}
Copy

Request params

idinteger
jsonrpcstring
methodstring
Parametersarray
array
blockNumberstring
Block number in hex, or a block tag, to dump the state of.
  • latest [default] - The most recent block in the blockchain (default).
  • earliest - The first block, also known as the genesis block.
  • pending - Transactions that have been broadcast but not yet included in a block.

Response

200
The full state dump for the requested block

Response params

object
idinteger
jsonrpcstring
resultobject
The full state dump.
object
rootstring
The state root hash of the block.
accountsobject
A map of every account address to its account data.
object
balancestring
The account balance, in Wei.
nonceinteger
The account nonce.
rootstring
The account's storage root hash.
codeHashstring
The hash of the account's contract code.
codestring
The contract bytecode.
storageobject
The account's storage slots.
debug_accountRangedebug_getBadBlocks