getConfirmedBlock RPC Method
Returns identity and transaction information about a confirmed block in the ledger
Deprecated Method
This method is expected to be removed in solana-core
v2.0. Please use
getBlock instead.
Parameters #
u64
required
slot number, as u64 integer
object
optional
Configuration object containing the following fields:
commitment string
optional
Default:
finalized
transactionDetails string
optional
Default:
full
level of transaction detail to return, either "full", "signatures", or "none"
rewards bool
optional
Default:
true
whether to populate the rewards
array.
encoding string
optional
Default:
json
Encoding format for Account data
Values: json
base58
base64
jsonParsed
jsonParsed
encoding attempts to use program-specific instruction parsers to return more human-readable and explicit data in thetransaction.message.instructions
list.- If
jsonParsed
is requested but a parser cannot be found, the instruction falls back to regular JSON encoding (accounts
,data
, andprogramIdIndex
fields).
Result #
The result field will be an object with the following fields:
<null>
- if specified block is not confirmed<object>
- if block is confirmed, an object with the following fields:blockhash: <string>
- the blockhash of this block, as base-58 encoded stringpreviousBlockhash: <string>
- the blockhash of this block's parent, as base-58 encoded string; if the parent block is not available due to ledger cleanup, this field will return "11111111111111111111111111111111"parentSlot: <u64>
- the slot index of this block's parenttransactions: <array>
- present if "full" transaction details are requested; an array of JSON objects containing:transaction: <object|[string,encoding]>
- Transaction object, either in JSON format or encoded binary data, depending on encoding parametermeta: <object>
- transaction status metadata object, containingnull
or:err: <object|null>
- Error if transaction failed, null if transaction succeeded. TransactionError definitionsfee: <u64>
- fee this transaction was charged, as u64 integerpreBalances: <array>
- array of u64 account balances from before the transaction was processedpostBalances: <array>
- array of u64 account balances after the transaction was processedinnerInstructions: <array|null>
- List of inner instructions ornull
if inner instruction recording was not enabled during this transactionpreTokenBalances: <array|undefined>
- List of token balances from before the transaction was processed or omitted if token balance recording was not yet enabled during this transactionpostTokenBalances: <array|undefined>
- List of token balances from after the transaction was processed or omitted if token balance recording was not yet enabled during this transactionlogMessages: <array|null>
- array of string log messages ornull
if log message recording was not enabled during this transaction- DEPRECATED:
status: <object>
- Transaction status"Ok": <null>
- Transaction was successful"Err": <ERR>
- Transaction failed with TransactionError
signatures: <array>
- present if "signatures" are requested for transaction details; an array of signatures strings, corresponding to the transaction order in the blockrewards: <array>
- present if rewards are requested; an array of JSON objects containing:pubkey: <string>
- The public key, as base-58 encoded string, of the account that received the rewardlamports: <i64>
- number of reward lamports credited or debited by the account, as a i64postBalance: <u64>
- account balance in lamports after the reward was appliedrewardType: <string|undefined>
- type of reward: "fee", "rent", "voting", "staking"commission: <u8|undefined>
- vote account commission when the reward was credited, only present for voting and staking rewards
blockTime: <i64|null>
- estimated production time, as Unix timestamp (seconds since the Unix epoch). null if not available
For more details on returned data: #
Code sample #
curl https://api.devnet.solana.com -X POST -H "Content-Type: application/json" -d '
{
"jsonrpc": "2.0", "id": 1,
"method": "getConfirmedBlock",
"params": [430, "base64"]
}
'
Response #
{
"jsonrpc": "2.0",
"result": {
"blockTime": null,
"blockhash": "3Eq21vXNB5s86c62bVuUfTeaMif1N2kUqRPBmGRJhyTA",
"parentSlot": 429,
"previousBlockhash": "mfcyqEXB3DnHXki6KjjmZck6YjmZLvpAByy2fj4nh6B",
"rewards": [],
"transactions": [
{
"meta": {
"err": null,
"fee": 5000,
"innerInstructions": [],
"logMessages": [],
"postBalances": [499998932500, 26858640, 1, 1, 1],
"postTokenBalances": [],
"preBalances": [499998937500, 26858640, 1, 1, 1],
"preTokenBalances": [],
"status": {
"Ok": null
}
},
"transaction": [
"AVj7dxHlQ9IrvdYVIjuiRFs1jLaDMHixgrv+qtHBwz51L4/ImLZhszwiyEJDIp7xeBSpm/TX5B7mYzxa+fPOMw0BAAMFJMJVqLw+hJYheizSoYlLm53KzgT82cDVmazarqQKG2GQsLgiqktA+a+FDR4/7xnDX7rsusMwryYVUdixfz1B1Qan1RcZLwqvxvJl4/t3zHragsUp0L47E24tAFUgAAAABqfVFxjHdMkoVmOYaR1etoteuKObS21cc1VbIQAAAAAHYUgdNXR0u3xNdiTr072z2DVec9EQQ/wNo1OAAAAAAAtxOUhPBp2WSjUNJEgfvy70BbxI00fZyEPvFHNfxrtEAQQEAQIDADUCAAAAAQAAAAAAAACtAQAAAAAAAAdUE18R96XTJCe+YfRfUp6WP+YKCy/72ucOL8AoBFSpAA==",
"base64"
]
}
]
},
"id": 1
}