The Default Block Parameter
When requests are made that act on the state of Klaytn, the last default block parameter determines the height of the block.
The following options are possible for the defaultBlock
parameter:
HEX String
- an integer block number
String "earliest"
for the earliest/genesis block
String "latest"
- for the latest mined block
String "pending"
- for the pending state/transactions
kaia_blockNumber
Returns the number of most recent block.
Parameters
None
Return Value
Integer of the current block number the client is on.
Example
Copy // Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"kaia_blockNumber","params":[],"id":83}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" :83,
"result" : "0xc94"
}
NOTE : This API is supported from Klaytn v1.7.0.
Returns information about a header by number. This API works only on RPC call, not on JavaScript console.
Parameters
Integer or hexadecimal block number, or the string "earliest"
, "latest"
or "pending"
as in the default block parameter .
Return Value
See kaia_getHeaderByHash
Example
Copy // Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"kaia_getHeaderByNumber","params":["0x1b4"],"id":1}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" :1,
"result" : {
"baseFeePerGas" : "0x5d21dba00" ,
"blockScore" : "0x1" ,
"extraData":"0xda83010800846b6c617989676f312e31362e31338664617277696e0000000000f89ed5949712f943b296758aaae79944ec975884188d3a96b841ddfdf7e2cb0a93538f757f87f23a93ee35df703c781c6f15e31e4978ecdfb3501fc00924372b9a01df2bc452f2a924c242d83580183d131c47e49a25b78f625201f843b841b9b6034d5a8c5f5b057274cda4f427614cd1f448ee781f4c4322861d1361d09d47d6030f2b69a26cb426db984f54e71f8c112fbf882930ccd715d595e8d8307500",
"gasUsed" : "0x0" ,
"governanceData" : "0x" ,
"hash" : "0xe882d7a16f38126dc0c507f990b3fe18fa2d3a380002538581327abe96ca6edc" ,
"logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"number" : "0x1e67" ,
"parentHash" : "0x28b1c054346c3bd083741c757a750dcabf94b6d50c7f87158753544e96e73550" ,
"receiptsRoot" : "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470" ,
"reward" : "0x4b2c736fd05c2e2da3ccbd001a395a444f16a861" ,
"stateRoot" : "0xdf9885621c9e6e75912ca94d6987bcb1b54fef0e4a99cbec5e68f1ffc7468a78" ,
"timestamp" : "0x62130beb" ,
"timestampFoS" : "0x0" ,
"transactionsRoot" : "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"
}
}
NOTE : This API is supported from Klaytn v1.7.0.
Returns information about a header by hash. This API works only on RPC call, not on JavaScript console.
Parameters
Return Value
Object
- A header object, or error
when no header was found:
The block number. null
when it is pending block.
The hash of the parent block.
The bloom filter for the logs of the block. null
when it is pending block.
The root of the transaction trie of the block.
The root of the final state trie of the block.
The root of the receipts trie of the block.
The address of the beneficiary to whom the block rewards were given.
Former difficulty. Always 1 in the BFT consensus engine
The "extra data" field of this block.
The total used gas by all transactions in this block.
The Unix timestamp for when the block was collated.
The fraction of a second of the timestamp for when the block was collated.
RLP encoded governance configuration
RLP encoded governance vote of the proposer
The base fee per gas. It has a meaningful value when EthTxTypeCompatible and Magma hardforks are activated.
Example
Copy // Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"kaia_getHeaderByHash","params":["0xb8deae63002d2b6aa33247c8ef545383ee0fd2282ac9b49dbbb74114389ddb5c"],"id":1}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" :1,
"result" : {
"baseFeePerGas" : "0x5d21dba00" ,
"blockScore" : "0x1" ,
"extraData":"0xda83010800846b6c617989676f312e31362e31338664617277696e0000000000f89ed5949712f943b296758aaae79944ec975884188d3a96b841ddfdf7e2cb0a93538f757f87f23a93ee35df703c781c6f15e31e4978ecdfb3501fc00924372b9a01df2bc452f2a924c242d83580183d131c47e49a25b78f625201f843b841b9b6034d5a8c5f5b057274cda4f427614cd1f448ee781f4c4322861d1361d09d47d6030f2b69a26cb426db984f54e71f8c112fbf882930ccd715d595e8d8307500",
"gasUsed" : "0x0" ,
"governanceData" : "0x" ,
"hash" : "0xe882d7a16f38126dc0c507f990b3fe18fa2d3a380002538581327abe96ca6edc" ,
"logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"number" : "0x1e67" ,
"parentHash" : "0x28b1c054346c3bd083741c757a750dcabf94b6d50c7f87158753544e96e73550" ,
"receiptsRoot" : "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470" ,
"reward" : "0x4b2c736fd05c2e2da3ccbd001a395a444f16a861" ,
"stateRoot" : "0xdf9885621c9e6e75912ca94d6987bcb1b54fef0e4a99cbec5e68f1ffc7468a78" ,
"timestamp" : "0x62130beb" ,
"timestampFoS" : "0x0" ,
"transactionsRoot" : "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"
}
}
kaia_getBlockByNumber
Returns information about a block by block number. This API works only on RPC call, not on JavaScript console.
Parameters
Integer or hexadecimal block number, or the string "earliest"
, "latest"
or "pending"
as in the default block parameter .
If true
it returns the full transaction objects, if false
only the hashes of the transactions.
:::note
NOTE: In versions earlier than Klaytn v1.7.0, only integer block number, the string "earliest"
and "latest"
are available.
:::
Return Value
See kaia_getBlockByHash
Example
Copy // Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"kaia_getBlockByNumber","params":["0x1b4", true],"id":1}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" :1,
"result" : {
"baseFeePerGas" : "0x5d21dba00" ,
"blockscore" : "0x1" ,
"extraData":"0xda83010800846b6c617989676f312e31362e31338664617277696e0000000000f89ed5949712f943b296758aaae79944ec975884188d3a96b841ddfdf7e2cb0a93538f757f87f23a93ee35df703c781c6f15e31e4978ecdfb3501fc00924372b9a01df2bc452f2a924c242d83580183d131c47e49a25b78f625201f843b841b9b6034d5a8c5f5b057274cda4f427614cd1f448ee781f4c4322861d1361d09d47d6030f2b69a26cb426db984f54e71f8c112fbf882930ccd715d595e8d8307500",
"gasUsed" : "0x0" ,
"governanceData" : "0x" ,
"hash" : "0xe882d7a16f38126dc0c507f990b3fe18fa2d3a380002538581327abe96ca6edc" ,
"logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"number" : "0x1e67" ,
"parentHash" : "0x28b1c054346c3bd083741c757a750dcabf94b6d50c7f87158753544e96e73550" ,
"receiptsRoot" : "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470" ,
"reward" : "0x4b2c736fd05c2e2da3ccbd001a395a444f16a861" ,
"size" : "0x272" ,
"stateRoot" : "0xdf9885621c9e6e75912ca94d6987bcb1b54fef0e4a99cbec5e68f1ffc7468a78" ,
"timestamp" : "0x62130beb" ,
"timestampFoS" : "0x0" ,
"totalBlockScore" : "0x1e68" ,
"transactions" : [],
"transactionsRoot" : "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470" ,
"voteData" : "0x"
}
}
kaia_getBlockByHash
Returns information about a block by hash. This API works only on RPC call, not on JavaScript console.
Parameters
If true
it returns the full transaction objects, if false
only the hashes of the transactions.
Return Value
Object
- A block object, or error
when no block was found:
The block number. null
when it is pending block.
Hash of the block. null
when it is pending block.
Hash of the parent block.
The bloom filter for the logs of the block. null
when it is pending block.
The root of the transaction trie of the block.
The root of the final state trie of the block.
The root of the receipts trie of the block.
The address of the beneficiary to whom the block rewards were given.
Former difficulty. Always 1 in the BFT consensus engine
Integer of the total blockScore of the chain until this block.
The "extra data" field of this block.
Integer the size of this block in bytes.
The total used gas by all transactions in this block.
The Unix timestamp for when the block was collated.
The fraction of a second of the timestamp for when the block was collated.
Array of transaction objects, or 32-byte transaction hashes depending on the last given parameter.
RLP encoded governance configuration
RLP encoded governance vote of the proposer
The base fee per gas. It has a meaningful value when EthTxTypeCompatible and Magma hardforks are activated.
Example
Copy // Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"kaia_getBlockByHash","params":["0xb8deae63002d2b6aa33247c8ef545383ee0fd2282ac9b49dbbb74114389ddb5c", true],"id":1}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" :1,
"result" : {
"baseFeePerGas" : "0x0" ,
"blockscore" : "0x1" ,
"extraData":"0xda83010800846b6c617989676f312e31362e31338664617277696e0000000000f89ed5949712f943b296758aaae79944ec975884188d3a96b841ddfdf7e2cb0a93538f757f87f23a93ee35df703c781c6f15e31e4978ecdfb3501fc00924372b9a01df2bc452f2a924c242d83580183d131c47e49a25b78f625201f843b841b9b6034d5a8c5f5b057274cda4f427614cd1f448ee781f4c4322861d1361d09d47d6030f2b69a26cb426db984f54e71f8c112fbf882930ccd715d595e8d8307500",
"gasUsed" : "0x0" ,
"governanceData" : "0x" ,
"hash" : "0xe882d7a16f38126dc0c507f990b3fe18fa2d3a380002538581327abe96ca6edc" ,
"logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"number" : "0x1e67" ,
"parentHash" : "0x28b1c054346c3bd083741c757a750dcabf94b6d50c7f87158753544e96e73550" ,
"receiptsRoot" : "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470" ,
"reward" : "0x4b2c736fd05c2e2da3ccbd001a395a444f16a861" ,
"size" : "0x272" ,
"stateRoot" : "0xdf9885621c9e6e75912ca94d6987bcb1b54fef0e4a99cbec5e68f1ffc7468a78" ,
"timestamp" : "0x62130beb" ,
"timestampFoS" : "0x0" ,
"totalBlockScore" : "0x1e68" ,
"transactions" : [],
"transactionsRoot" : "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470" ,
"voteData" : "0x"
}
}
kaia_getBlockReceipts
Returns receipts included in a block.
Parameters
Number | 32-byte DATA | TAG
The block number or hash. Or the string "earliest"
, "latest"
or "pending"
as in default block parameter .
Return Value
Receipts included in a block. If the target block contains no transaction, an empty array []
is returned.
Example
Copy // Request
curl -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0", "method":"kaia_getBlockReceipts", "params":["0xb14e8716f732186f2c99bb7a215a7cb1ec40e91e8d83739bfb593ed4b9047aa1"],"id":1}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" : 1,
"result" : [
{
"blockHash" : "0xb14e8716f732186f2c99bb7a215a7cb1ec40e91e8d83739bfb593ed4b9047aa1" ,
"blockNumber" : "0x85ef20d" ,
"contractAddress" : null,
"cumulativeGasUsed" : "0x23b6e" ,
"effectiveGasPrice" : "0x5d21dba00" ,
"from" : "0x60d690e4d5db4025f4781c6cf3bff8669500823c" ,
"gasUsed" : "0x23b6e" ,
"logs" : [
...
],
"logsBloom": "0x00000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000220000000400000000000000000000000000000000000002000000000010001000000000040000000000000000000000000000000000000000000000000000400000080000000100000000000000000000000000000000000000000000480000000000000000000000010000000001000000000000000000000000000000000000000000009000000000000000000000000000000000000000008000000000000000004000000000004000000000000000000000000000000000000000000000000000000000000000200",
"status" : "0x1" ,
"to" : "0x27e1255f2a0ea596992158a0bc838f43be34b99d" ,
"transactionHash" : "0xafd15213b06144a85dd02adf88c32efb3d395e784f153c213a40b7ea25de1942" ,
"transactionIndex" : "0x0" ,
"type" : "0x0"
}
]
}
kaia_getBlockTransactionCountByNumber
Returns the number of transactions in a block matching the given block number.
Parameters
Integer or hexadecimal block number, or the string "earliest"
, "latest"
or "pending"
as in the default block parameter .
:::note
NOTE: In versions earlier than Klaytn v1.7.0, only integer block number, the string "earliest"
and "latest"
are available.
:::
Return Value
Integer of the number of transactions in this block.
Example
Copy // Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"kaia_getBlockTransactionCountByNumber","params":["0xe8"],"id":1}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" :1,
"result" : "0xa" // 10
}
kaia_getBlockTransactionCountByHash
Returns the number of transactions in a block from a block that matches the given hash.
Parameters
Return Value
Integer of the number of transactions in this block.
Example
Copy // Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"kaia_getBlockTransactionCountByHash","params":["0x0c11803ab36110db993e7520908b9ba9336cca2f2dcc9b6130c481a3ccdc2621"],"id":1}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" :1,
"result" : "0x0"
}
kaia_getBlockWithConsensusInfoByNumber
Returns a block with consensus information that matches the given block number.
Parameters
Integer or hexadecimal block number, or the string "earliest"
or "latest"
as in the default block parameter .
:::note
NOTE: In versions earlier than Klaytn v1.7.0, only integer block number, the string "earliest"
and "latest"
are available.
:::
Return Value
See kaia_getBlockWithConsensusInfoByHash
Example
Copy // Request
curl -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0", "method":"kaia_getBlockWithConsensusInfoByNumber", "params":["0x6e0431"],"id":73}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" : 73,
"result" : {
"baseFeePerGas" : "0x5d21dba00" ,
"blockscore" : "0x1" ,
"committee": ["0xe783fc94fddaeebef7293d6c5864cff280f121e1", "0x8a88a093c05376886754a9b70b0d0a826a5e64be", "0xf113ec8c22765d485309cf1d025d1b975245b9f8", "0xe3d92072d8b9a59a0427485a1b5f459271df457c", "0xa2ba8f7798649a778a1fd66d3035904949fec555", "0x2bdd279522b8a0843831fbb94cfbb24a913597c5", "0x9419fa2e3b9eb1158de31be66c586a52f49c5de7", "0xc032c34cb9fe064fe435199e1078dd8756a166b5", "0x56e8c1463c341abf8b168c3079ea41ce8a387e18", "0x6873352021fe9226884616dc6f189f289aeb0cc5", "0xe93a890fb7ec5e993b1a7fd77b0d13a0763eff3d", "0xbca8ffa45cc8e30bbc0522cdf1a1e0ebf540dfe2", "0x386ca3cb8bb13f48d1a6adc1fb8df09e7bb7f9c8", "0x1782834bf8847e235f21f2c1f13fca4d5dff6621", "0x6f6770f1f67f44fb15b335b49581ad6b935d963a", "0x0b59cae1f03534209fdb9ddf5ea65b310cd7060c", "0xb9456fd65a6810b19df24832c50b2e61a41867f8", "0x16c192585a0ab24b552783b4bf7d8dc9f6855c35", "0xec6c1cede510be308f0fdbbc8dbdf238829bdb34", "0xf8c9c61c5e7f2b6219d1c28b94e5cb3cdc802594", "0x5e59db28cef098d5a2e877f84127aed10d7378f2", "0x52d41ca72af615a1ac3301b0a93efa222ecc7541"],
"extraData": "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",
"gasUsed" : "0x1d065" ,
"governanceData" : "0x" ,
"hash" : "0x7d68d09a7a571cdf8a3b6a5ef6e037265b3e3093cf145b0954d22bde5c1d4f61" ,
"logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"number" : "0x6e0431" ,
"parentHash" : "0xa76ef625874a4d2126eb3fd1ebb5c1a8d0deb360a12b4f8edf30fb417d82b5a1" ,
"proposer" : "0xe783fc94fddaeebef7293d6c5864cff280f121e1" ,
"receiptsRoot" : "0x56734b337c3daab6766104bb51bd2ca408cf4537f5528ab3362536c57e65ba67" ,
"reward" : "0x79f83dbb81f6f706be3e8491b14790c30d03e659" ,
"size" : "0x947" ,
"stateRoot" : "0xf685dce2cbef004cb041cf23959aea65e8aa86911fac55739ae1971f7d1dacd4" ,
"timestamp" : "0x5d801768" ,
"timestampFoS" : "0x4" ,
"totalBlockScore" : "0x6e0432" ,
"transactions" : [
{
"blockHash" : "0x7d68d09a7a571cdf8a3b6a5ef6e037265b3e3093cf145b0954d22bde5c1d4f61" ,
"blockNumber" : "0x6e0431" ,
"contractAddress" : null,
"feePayer" : "0x08260736c18bd8612bee2b21beedf4e97c0bc6b9" ,
"feePayerSignatures" : [
{
"V" : "0x4055" ,
"R" : "0xd3fdd58e18e5a96d1f9af3d1aff31601d8e543a8085c78edfc8602db4c91b3c6" ,
"S" : "0x19d937e315472a188f11a6bb87f47e66a30b44ba907b5f01fcd47dab8d99f3f0"
}
],
"from" : "0x84b605b268e89ccdf591974db82deaa48bce59dc" ,
"gas" : "0x419ce0" ,
"gasPrice" : "0x5d21dba00" ,
"gasUsed" : "0x1d065" ,
"input" : "0x50716652000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000013416c50000000000000000000000000000000000000000000000000000000000001f3f000000000000000000000000000000000000000000000000000000003b9af23c" ,
"logs" : [],
"logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"nonce" : "0x8" ,
"senderTxHash" : "0x5fe7485db56c0c2b0eb54dd46e584a413193ad66b40e69281f44dadfa7409b2e" ,
"signatures" : [
{
"V" : "0x4056" ,
"R" : "0xca32239c38e1080f3a394504e2a0bb9811cda0a87d25b750cbbab265d581074d" ,
"S" : "0x584ab136a483e755d9d458f9965ca0d514724c7b45f6123d19323f6fa7ccdb5f"
}
],
"status" : "0x1" ,
"to" : "0x1db1b93447328dd904152f798ead97987844f7b7" ,
"transactionHash" : "0x020a2156bb4b29dc84f26887efae79e07a3d738b2856a66bbaab8aee18d507b5" ,
"transactionIndex" : "0x0" ,
"type" : "TxTypeFeeDelegatedSmartContractExecution" ,
"typeInt" : 49,
"value" : "0x0"
}
],
"transactionsRoot" : "0x020a2156bb4b29dc84f26887efae79e07a3d738b2856a66bbaab8aee18d507b5" ,
"voteData" : "0x"
}
}
kaia_getBlockWithConsensusInfoByHash
Returns a block with consensus information that matches the given hash.
Parameters
Return Value
Object
- A block object with consensus information (a proposer and a list of committee members), or error
when no block was found:
Former difficulty. Always 1 in the BFT consensus engine
Integer of the total blockScore of the chain until this block.
Array of addresses of committee members of this block. The committee is a subset of validators participated in the consensus protocol for this block.
The total used gas by all transactions in this block.
Hash of the block. null
when it is pending block.
The block number. null
when it is pending block.
Hash of the parent block.
The address of the block proposer.
The root of the receipts trie of the block.
Integer the size of this block in bytes.
The root of the final state trie of the block.
The Unix timestamp for when the block was collated.
The fraction of a second of the timestamp for when the block was collated.
Array of transaction objects.
The root of the transaction trie of the block.
The base fee per gas. It has a meaningful value when EthTxTypeCompatible and Magma hardforks are activated.
Example
Copy // Request
curl -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0", "method":"kaia_getBlockWithConsensusInfoByHash", "params":["0x7d68d09a7a571cdf8a3b6a5ef6e037265b3e3093cf145b0954d22bde5c1d4f61"],"id":73}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" : 73,
"result" : {
"baseFeePerGas" : "0x5d21dba00" ,
"blockscore" : "0x1" ,
"committee": ["0xe783fc94fddaeebef7293d6c5864cff280f121e1", "0x8a88a093c05376886754a9b70b0d0a826a5e64be", "0xf113ec8c22765d485309cf1d025d1b975245b9f8", "0xe3d92072d8b9a59a0427485a1b5f459271df457c", "0xa2ba8f7798649a778a1fd66d3035904949fec555", "0x2bdd279522b8a0843831fbb94cfbb24a913597c5", "0x9419fa2e3b9eb1158de31be66c586a52f49c5de7", "0xc032c34cb9fe064fe435199e1078dd8756a166b5", "0x56e8c1463c341abf8b168c3079ea41ce8a387e18", "0x6873352021fe9226884616dc6f189f289aeb0cc5", "0xe93a890fb7ec5e993b1a7fd77b0d13a0763eff3d", "0xbca8ffa45cc8e30bbc0522cdf1a1e0ebf540dfe2", "0x386ca3cb8bb13f48d1a6adc1fb8df09e7bb7f9c8", "0x1782834bf8847e235f21f2c1f13fca4d5dff6621", "0x6f6770f1f67f44fb15b335b49581ad6b935d963a", "0x0b59cae1f03534209fdb9ddf5ea65b310cd7060c", "0xb9456fd65a6810b19df24832c50b2e61a41867f8", "0x16c192585a0ab24b552783b4bf7d8dc9f6855c35", "0xec6c1cede510be308f0fdbbc8dbdf238829bdb34", "0xf8c9c61c5e7f2b6219d1c28b94e5cb3cdc802594", "0x5e59db28cef098d5a2e877f84127aed10d7378f2", "0x52d41ca72af615a1ac3301b0a93efa222ecc7541"],
"extraData": "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",
"gasUsed" : "0x1d065" ,
"governanceData" : "0x" ,
"hash" : "0x7d68d09a7a571cdf8a3b6a5ef6e037265b3e3093cf145b0954d22bde5c1d4f61" ,
"logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"number" : "0x6e0431" ,
"parentHash" : "0xa76ef625874a4d2126eb3fd1ebb5c1a8d0deb360a12b4f8edf30fb417d82b5a1" ,
"proposer" : "0xe783fc94fddaeebef7293d6c5864cff280f121e1" ,
"receiptsRoot" : "0x56734b337c3daab6766104bb51bd2ca408cf4537f5528ab3362536c57e65ba67" ,
"reward" : "0x79f83dbb81f6f706be3e8491b14790c30d03e659" ,
"size" : "0x947" ,
"stateRoot" : "0xf685dce2cbef004cb041cf23959aea65e8aa86911fac55739ae1971f7d1dacd4" ,
"timestamp" : "0x5d801768" ,
"timestampFoS" : "0x4" ,
"totalBlockScore" : "0x6e0432" ,
"transactions" : [
{
"blockHash" : "0x7d68d09a7a571cdf8a3b6a5ef6e037265b3e3093cf145b0954d22bde5c1d4f61" ,
"blockNumber" : "0x6e0431" ,
"contractAddress" : null,
"feePayer" : "0x08260736c18bd8612bee2b21beedf4e97c0bc6b9" ,
"feePayerSignatures" : [
{
"V" : "0x4055" ,
"R" : "0xd3fdd58e18e5a96d1f9af3d1aff31601d8e543a8085c78edfc8602db4c91b3c6" ,
"S" : "0x19d937e315472a188f11a6bb87f47e66a30b44ba907b5f01fcd47dab8d99f3f0"
}
],
"from" : "0x84b605b268e89ccdf591974db82deaa48bce59dc" ,
"gas" : "0x419ce0" ,
"gasPrice" : "0x5d21dba00" ,
"gasUsed" : "0x1d065" ,
"input" : "0x50716652000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000013416c50000000000000000000000000000000000000000000000000000000000001f3f000000000000000000000000000000000000000000000000000000003b9af23c" ,
"logs" : [],
"logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"nonce" : "0x8" ,
"senderTxHash" : "0x5fe7485db56c0c2b0eb54dd46e584a413193ad66b40e69281f44dadfa7409b2e" ,
"signatures" : [
{
"V" : "0x4056" ,
"R" : "0xca32239c38e1080f3a394504e2a0bb9811cda0a87d25b750cbbab265d581074d" ,
"S" : "0x584ab136a483e755d9d458f9965ca0d514724c7b45f6123d19323f6fa7ccdb5f"
}
],
"status" : "0x1" ,
"to" : "0x1db1b93447328dd904152f798ead97987844f7b7" ,
"transactionHash" : "0x020a2156bb4b29dc84f26887efae79e07a3d738b2856a66bbaab8aee18d507b5" ,
"transactionIndex" : "0x0" ,
"type" : "TxTypeFeeDelegatedSmartContractExecution" ,
"typeInt" : 49,
"value" : "0x0"
}
],
"transactionsRoot" : "0x020a2156bb4b29dc84f26887efae79e07a3d738b2856a66bbaab8aee18d507b5" ,
"voteData" : "0x"
}
}
kaia_getCommittee
Returns a list of all validators in the committee at the specified block. If the parameter is not set, returns a list of all validators in the committee at the latest block.
Parameters
(optional) Integer or hexadecimal block number, or the string "earliest"
or "latest"
as in the default block parameter .
:::note
NOTE: In versions earlier than Klaytn v1.7.0, only integer block number, the string "earliest"
and "latest"
are available.
:::
Return Value
Array
- Array of addresses of all validators in the committee, or null
when no committee was found:
Addresses of all validators in the committee.
Example
Copy // Request
curl -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0", "method":"kaia_getCommittee", "params":["0x1b4"],"id":73}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" :73,
"result" : [
"0x207e38864b45a538733741dc1ff92eff9d1a6159" ,
"0x6d64bc82b93368a7f963d6c34483ca3893f405f6" ,
"0xbc9c19f91878369776812039e4ebcdfa3c646716" ,
"0xe3ed6fa287752b992f936b42360770c59731d9eb"
]
}
kaia_getCommitteeSize
Returns the size of the committee at the specified block. If the parameter is not set, returns the size of the committee at the latest block.
Parameters
(optional) Integer or hexadecimal block number, or the string "earliest"
or "latest"
as in the default block parameter .
:::note
NOTE: In versions earlier than Klaytn v1.7.0, only integer block number, the string "earliest"
and "latest"
are available.
:::
Return Value
Integer
- The size of the committee, or -1
when no committee was found:
Example
Copy // Request
curl -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0", "method":"kaia_getCommitteeSize", "params":["0x1b4"],"id":73}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" :73,
"result" :4
}
kaia_getCouncil
Returns a list of all validators of the council at the specified block. If the parameter is not set, returns a list of all validators of the council at the latest block.
NOTE : kaia_getValidators
is replaced with this method and is not supported anymore.
Parameters
(optional) Integer or hexadecimal block number, or the string "earliest"
or "latest"
as in the default block parameter .
:::note
NOTE: In versions earlier than Klaytn v1.7.0, only integer block number, the string "earliest"
and "latest"
are available.
:::
Return Value
Array
- Array of validator addresses of the council, or null
when no council was found:
Addresses of all validators of the council.
Example
Copy // Request
curl -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0", "method":"kaia_getCouncil", "params":["0x1b4"],"id":73}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" :73,
"result" : [
"0x207e38864b45a538733741dc1ff92eff9d1a6159" ,
"0x6d64bc82b93368a7f963d6c34483ca3893f405f6" ,
"0xbc9c19f91878369776812039e4ebcdfa3c646716" ,
"0xe3ed6fa287752b992f936b42360770c59731d9eb"
]
}
kaia_getCouncilSize
Returns the size of the council at the specified block. If the parameter is not set, returns the size of the council at the latest block.
Parameters
(optional) Integer or hexadecimal block number, or the string "earliest"
or "latest"
as in the default block parameter .
:::note
NOTE: In versions earlier than Klaytn v1.7.0, only integer block number, the string "earliest"
and "latest"
are available.
:::
Return Value
Integer
- The size of the council, or -1
when no council was found:
Example
Copy // Request
curl -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0", "method":"kaia_getCouncilSize", "params":["0x1b4"],"id":73}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" :73,
"result" : 4
}
kaia_getStorageAt
Returns the value from a storage position at a given address.
Parameters
Integer of the position in the storage.
Integer or hexadecimal block number, or the string "earliest"
, "latest"
or "pending"
as in the default block parameter , or block hash.
:::note
NOTE: In versions earlier than Klaytn v1.7.0, only integer block number, the string "earliest"
and "latest"
are available.
:::
Return Value
The value at this storage position.
Example
Calculating the correct position depends on the storage to retrieve. Consider the following contract deployed at 0x295a70b2de5e3953354a6a8344e616ed314d7251
by address 0x391694e7e0b0cce554cb130d723a9d27458f9298
.
Copy contract Storage {
uint pos0;
mapping(address => uint) pos1;
function Storage() {
pos0 = 1234;
pos1[msg.sender] = 5678;
}
}
Retrieving the value of pos0
is straight forward:
Copy curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0", "method": "kaia_getStorageAt", "params": ["0x295a70b2de5e3953354a6a8344e616ed314d7251", "0x0", "latest"], "id": 1}' https://kaia.nownodes.io
{ "jsonrpc" : "2.0" , "id" :1, "result" : "0x00000000000000000000000000000000000000000000000000000000000004d2" }
Retrieving an element of the map is harder. The position of an element in the map is calculated with:
Copy keccak ( LeftPad32 (key , 0 ) , LeftPad32 (map position , 0 ))
This means to retrieve the storage on pos1["0x391694e7e0b0cce554cb130d723a9d27458f9298"]
we need to calculate the position with:
Copy keccak ( decodeHex ( "000000000000000000000000391694e7e0b0cce554cb130d723a9d27458f9298" + "0000000000000000000000000000000000000000000000000000000000000001" ))
The Klaytn console which comes with the klay
library can be used to make the calculation.
Copy > var key = "000000000000000000000000391694e7e0b0cce554cb130d723a9d27458f9298" + "0000000000000000000000000000000000000000000000000000000000000001"
undefined
> klay .sha3 (key , { "encoding" : "hex" })
"0x6661e9d6d8b923d5bbaab1b96e1dd51ff6ea2a93520fdc9eb75d059238b8c5e9"
Now to fetch the storage:
Copy curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0", "method": "kaia_getStorageAt", "params": ["0x295a70b2de5e3953354a6a8344e616ed314d7251", "0x6661e9d6d8b923d5bbaab1b96e1dd51ff6ea2a93520fdc9eb75d059238b8c5e9", "latest"], "id": 1}' https://kaia.nownodes.io
{ "jsonrpc" : "2.0" , "id" :1, "result" : "0x000000000000000000000000000000000000000000000000000000000000162e" }
kaia_syncing
Returns an object with data about the sync status or false
.
Parameters
None
Return Value
Object|Boolean
, an object with sync status data or false
when not syncing:
The block at which the import started (will only be reset, after the sync reached his head).
The current block, same as kaia_
kaia_kaia_kaia_kaia_kaia_blockNumber
.
The estimated highest block.
The number of state entries processed until now. If the sync mode is not "fast", zero is returned.
The number of known state entries that still need to be pulled. If the sync mode is not "fast", zero is returned.
Example
Copy // Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"kaia_syncing","params":[],"id":1}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" :1,
"result" : {
"currentBlock" : "0x3e31e" ,
"highestBlock" : "0x827eef" ,
"knownStates" : "0x0" ,
"pulledStates" : "0x0" ,
"startingBlock" : "0x0"
}
}
// Or when not syncing
{
"jsonrpc" : "2.0" ,
"id" :1,
"result" : false
}
kaia_getRewards
Returns the reward distribution result about a block by block number, including the rewardees and their shares. If the parameter is not set, it returns the reward distribution at the latest block.
Parameters
Return Value
Reward distribution result
Copy // Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0", "method": "kaia_getRewards", "params": ["0x1000"], "id": 1}' https://kaia.nownodes.io
// Result
{
"jsonrpc" : "2.0" ,
"id" : 1,
"result" : {
"minted" : 6400000000000000000,
"totalFee" : 0,
"burntFee" : 0,
"proposer" : 640000000000000000,
"stakers" : 2560000000000000000,
"kgf" : 2560000000000000000,
"kir" : 640000000000000000,
"rewards" : {
"0x0000000000000000000000000000000000008000" : 512000000000000000,
"0x0000000000000000000000000000000000008001" : 512000000000000000,
"0x0000000000000000000000000000000000008002" : 512000000000000000,
"0x0000000000000000000000000000000000008003" : 512000000000000000,
"0x0000000000000000000000000000000000008004" : 512000000000000000,
"0x241dabb87a018fb582cacebcaf74490a6d421a03" : 640000000000000000,
"0x271b57742f6ed1478eb767361f5a92dad2fa048f" : 640000000000000000,
"0xcdf3df6ad5cfc142c1477503aae5c5b0afaa5ccb" : 2560000000000000000
}
}
}