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RPC Endpoints

Block


Block details

Queries network and returns block for given height or hash. You can also use finality param to return latest block details.

Note: You may choose to search by a specific block or finality, you can not choose both.

finality example:

{
"jsonrpc": "2.0",
"id": "dontcare",
"method": "block",
"params": {
"finality": "final"
}
}

[block_id]

{
"jsonrpc": "2.0",
"id": "dontcare",
"method": "block",
"params": {
"block_id": 17821130
}
}

[block_hash]

{
"jsonrpc": "2.0",
"id": "dontcare",
"method": "block",
"params": {
"block_id": "7nsuuitwS7xcdGnD9JgrE22cRB2vf2VS4yh1N9S71F4d"
}
}
Example response:

{
"jsonrpc": "2.0",
"result": {
"author": "bitcat.pool.f863973.m0",
"header": {
"height": 17821130,
"epoch_id": "7Wr3GFJkYeCxjVGz3gDaxvAMUzXuzG8MjFXTFoAXB6ZZ",
"next_epoch_id": "A5AdnxEn7mfHieQ5fRxx9AagCkHNJz6wr61ppEXiWvvh",
"hash": "CLo31YCUhzz8ZPtS5vXLFskyZgHV5qWgXinBQHgu9Pyd",
"prev_hash": "2yUTTubrv1gJhTUVnHXh66JG3qxStBqySoN6wzRzgdVD",
"prev_state_root": "5rSz37fySS8XkVgEy3FAZwUncX4X1thcSpuvCgA6xmec",
"chunk_receipts_root": "9ETNjrt6MkwTgSVMMbpukfxRshSD1avBUUa4R4NuqwHv",
"chunk_headers_root": "HMpEoBhPvThWZvppLwrXQSSfumVdaDW7WfZoCAPtjPfo",
"chunk_tx_root": "7tkzFg8RHBmMw1ncRJZCCZAizgq4rwCftTKYLce8RU8t",
"outcome_root": "7tkzFg8RHBmMw1ncRJZCCZAizgq4rwCftTKYLce8RU8t",
"chunks_included": 1,
"challenges_root": "11111111111111111111111111111111",
"timestamp": 1601280114229875635,
"timestamp_nanosec": "1601280114229875635",
"random_value": "ACdUSF3nehbMTwT7qjUB6Mm4Ynck5TVAWbNH3DR1cjQ7",
"validator_proposals": [],
"chunk_mask": [true],
"gas_price": "100000000",
"rent_paid": "0",
"validator_reward": "0",
"total_supply": "1042339182040791154864822502764857",
"challenges_result": [],
"last_final_block": "AaxTqjYND5WAKbV2UZaFed6DH1DShN9fEemtnpTsv3eR",
"last_ds_final_block": "2yUTTubrv1gJhTUVnHXh66JG3qxStBqySoN6wzRzgdVD",
"next_bp_hash": "3ZNEoFYh2CQeJ9dc1pLBeUd1HWG8657j2c1v72ENE45Q",
"block_merkle_root": "H3912Nkw6rtamfjsjmafe2uV2p1XmUKDou5ywgxb1gJr",
"approvals": [
"ed25519:4hNtc9vLhn2PQhktWtLKJV9g8SBfpm6NBT1w4syNFqoKE7ZMts2WwKA9x1ZUSBGVKYCuDGEqogLvwCF25G7e1UR3",
"ed25519:2UNmbTqysMMevVPqJEKSq57hkcxVFcAMdGq7CFhpW65yBKFxYwpoziiWsAtARusLn9Sy1eXM7DkGTXwAqFiSooS6",
"ed25519:4sumGoW9dnQCsJRpzkd4FQ5NSJypGQRCppWp7eQ9tpsEcJXjHZN8GVTCyeEk19WmbbMEJ5KBNypryyHzaH2gBxd4",
"ed25519:3fP2dri6GjYkmHgEqQWWP9GcoQEgakbaUtfr3391tXtYBgxmiJUEymRe54m7D8bQrSJ3LhKD8gTFT7qqdemRnizR",
"ed25519:3mwdqSWNm6RiuZAoZhD6pqsirC2cL48nEZAGoKixpqbrsBpAzqV3W2paH4KtQQ4JPLvk5pnzojaint2kNBCcUyq1",
"ed25519:D4hMnxqLyQW4Wo29MRNMej887GH46yJXDKNN4es8UDSi9shJ9Y4FcGqkxdV4AZhn1yUjwN5LwfgAgY6fyczk5L3",
null,
"ed25519:4WCVm4dn88VJxTkUgcvdS7vs34diBqtQY4XWMRctSN1NpbgdkwwVyxg7d2SbGC22SuED7w4nrToMhcpJXrkhkDmF",
"ed25519:JqtC7TFP7U14s7YhRKQEqwbc2RUxoctq75mrBdX91f7DuCWsPpe6ZTTnfHPmuJPjTzFHVZTsaQJWzwfSrrgNpnc",
"ed25519:ngGUpWc2SyHmMCkWGTNNNfvZAJQ5z7P92JCmDqB7JW3j8fNH6LobvFFXb2zVdssibJKgnjwBj8CRe6qiZtuYQZM",
"ed25519:5kzW6RbjukyJZiw9NTzTPPsQdoqN6EecafjVFEoWmTxQ4uSv1uSXhQYcHK2eq4m84oMmPABQDz2mm73Qx8mDdCQX",
"ed25519:5wHnuuxwJJiZ4bXNq5cESnr4YovFU2yaUcuHRDUw3DnLoxkqc15CsegoyUSQKEwtCZ4yETv8Z9QcD6Wr9zHV4AUk",
"ed25519:3F9XzWBxto31e8RAcBShAJBzJPgSJQsWbPXR38AfQnJn6AiveGz3JjebQm9Ye63BrnNA57QrPshwknxpzSrcNEZW",
"ed25519:2g5s4SKsHt9PMdekkDqVtwwtz14v4edhqdBX1MYA8tB6nDpj3vDCDCTy9pEU8dX31PoQe5ygnf88aTZukMBMK1Yt",
"ed25519:3Xz4jqhdyS3qs6xTmWdgjwt5gJraU5czMA89hPhmvbAN4aA7SUKL1HkevpmutRQqqxe7c7uCFeGiDHvDcxhhmD8W",
null,
"ed25519:55xs3vwPEys39egf9Z8SNyn1JsHPRMgj9HCX1GE7GJsVTcAuutQUCo91E12ZdXkuToYRXb9KzoT8n9XQRCNuLpwY",
null,
"ed25519:28JrFw7KnhnQPN89qZnnw17KDBjS6CDN7zB1hTg7KGg8qQPoCzakz9DNnaSnx39ji7e2fQSpZt4cNJaD7K7Yu7yo",
"ed25519:41hAr5qhtvUYpdD2NK9qqTVnpG325ZoAiwrcmk1MJH7fdpxm7oSKXvXZqh7bTmPhv61hH2RpHnhcGuN4QqLzK2zt",
"ed25519:4QacMsQ5FJgvecAYDFq8QBh19BBjh4qU8oeD5bV7p6Zhhu3e6r2iSHTvDBU2Q62RZAaWQQkkEwDUC9rsXdkGVhAt",
"ed25519:27smtCZ3WobEvBuD5DggY6kkGxjB9qRVY6kPixgwqvBT1eKbRVoV8cLj1z51S8RTcp7YzAr1vhHJUHgksatR9Udz",
"ed25519:4wspCWoAbhYxb3th2eX6ZXvKep1Fsco7mFP5zBodXBR8Wr344ANXSUCri3gUgNCCSoQ2CKSdqDEsvE6Y2jQ9hmbB",
"ed25519:46XpYf9ZB9gjDfdnJLHqqhYJpQCuvCgB9tzKWS88GANMCb2j9BM3KXyjaEzynSsaPK8VrKFXQuTsTzgQSeo9cWGW",
null,
"ed25519:Y5ehsrhEpTRGjG6fHJHsEXj2NYPGMmKguiJHXP7TqsCWHBvNzaJbieR7UDp78hJ1ib7C18J5MB2kCzTXBCF9c3b",
"ed25519:3P9363Dc8Kqvgjt3TsNRncUrncCHid7aSRnuySjF4JYmQbApkAxomyMu8xm9Rgo3mj9rqXb16PM7Xjn7hKP6TyVr",
null,
null,
"ed25519:65ATjGsigZ3vMp7sGcp1c4ptxoqhHPkBeAaZ5GWJguVDLyrRLPJrtXhLGjH9DpXd7CZswjyMYq5aRtorLnmmJ7GW",
null,
"ed25519:5SvqSViXbtsLoFMdtCufyyDgZnrEK7LheFi38X5M2ic17gfV5cz37r85RyixjUv98MbAmgVdmkxVFDGfSbeoHW7X",
null,
null,
"ed25519:2n3fQiBEiDKkB84biXWyQmvnupKX7B8faugY37jVi8hVXuWLggJmaEjqub511RCYwFnwW1RBxYpuJQ455KaniCd4",
"ed25519:2K9xKFLJ2fW74tddXtghFGFurKWomAqaJmkKYVZKHQT6zHe5wNSYT3vzMotLQcez5JD1Ta57N9zQ4H1RysB2s5DZ",
null,
null,
"ed25519:3qeCRtcLAqLtQ2YSQLcHDa26ykKX1BvAhP9jshLLYapxSEGGgZJY8sU72p9E78AkXwHP3X2Eq74jvts7gTRzNgMg",
null,
"ed25519:2czSQCF8wBDomEeSdDRH4gFoyJrp2ppZqR6JDaDGoYpaFkpWxZf2oGDkKfQLZMbfvU6LXkQjJssVHcLCJRMzG8co"
],
"signature": "ed25519:58sdWd6kxzhQdCGvHzxqvdtDLJzqspe74f3gytnqdxDLHf4eesXi7B3nYq2YaosCHZJYmcR4HPHKSoFm3WE4MbxT",
"latest_protocol_version": 35
},
"chunks": [
{
"chunk_hash": "EBM2qg5cGr47EjMPtH88uvmXHDHqmWPzKaQadbWhdw22",
"prev_block_hash": "2yUTTubrv1gJhTUVnHXh66JG3qxStBqySoN6wzRzgdVD",
"outcome_root": "11111111111111111111111111111111",
"prev_state_root": "HqWDq3f5HJuWnsTfwZS6jdAUqDjGFSTvjhb846vV27dx",
"encoded_merkle_root": "9zYue7drR1rhfzEEoc4WUXzaYRnRNihvRoGt1BgK7Lkk",
"encoded_length": 8,
"height_created": 17821130,
"height_included": 17821130,
"shard_id": 0,
"gas_used": 0,
"gas_limit": 1000000000000000,
"rent_paid": "0",
"validator_reward": "0",
"balance_burnt": "0",
"outgoing_receipts_root": "H4Rd6SGeEBTbxkitsCdzfu9xL9HtZ2eHoPCQXUeZ6bW4",
"tx_root": "11111111111111111111111111111111",
"validator_proposals": [],
"signature": "ed25519:4iPgpYAcPztAvnRHjfpegN37Rd8dTJKCjSd1gKAPLDaLcHUySJHjexMSSfC5iJVy28vqF9VB4psz13x2nt92cbR7"
}
]
},
"id": "dontcare"
}

What could go wrong?

When API request fails, RPC server returns a structured error response with a limited number of well-defined error variants, so client code can exhaustively handle all the possible error cases. Our JSON-RPC errors follow verror convention for structuring the error response:

{
"error": {
"name": <ERROR_TYPE>,
"cause": {
"info": {..},
"name": <ERROR_CAUSE>
},
"code": -32000,
"data": String,
"message": "Server error",
},
"id": "dontcare",
"jsonrpc": "2.0"
}

Heads up

The fields code, data, and message in the structure above are considered legacy ones and might be deprecated in the future. Please, don't rely on them.

Here is the exhaustive list of the error variants that can be returned by block method:

ERROR_TYPE
error.name
ERROR_CAUSE
error.cause.name
ReasonSolution
HANDLER_ERRORUNKNOWN_BLOCKThe requested block has not been produced yet or it has been garbage-collected (cleaned up to save space on the RPC node)
  • Check that the requested block is legit
  • If the block had been produced more than 5 epochs ago, try to send your request to an archival node
NOT_SYNCED_YETThe node is still syncing and the requested block is not in the database yet
  • Wait until the node finish syncing
  • Send a request to a different node which is synced
REQUEST_VALIDATION_ERRORPARSE_ERRORPassed arguments can't be parsed by JSON RPC server (missing arguments, wrong format, etc.)
  • Check the arguments passed and pass the correct ones
  • Check error.cause.info for more details
INTERNAL_ERRORINTERNAL_ERRORSomething went wrong with the node itself or overloaded
  • Try again later
  • Send a request to a different node
  • Check error.cause.info for more details

Changes in Block

Returns changes in block for given block height or hash. You can also use finality param to return latest block details.

Note: You may choose to search by a specific block or finality, you can not choose both.

finality

{
"jsonrpc": "2.0",
"id": "dontcare",
"method": "EXPERIMENTAL_changes_in_block",
"params": {
"finality": "final"
}
}

[block_id]

{
"jsonrpc": "2.0",
"id": "dontcare",
"method": "EXPERIMENTAL_changes_in_block",
"params": {
"block_id": 17821135
}
}

block_hash

{
"jsonrpc": "2.0",
"id": "dontcare",
"method": "EXPERIMENTAL_changes_in_block",
"params": {
"block_id": "81k9ked5s34zh13EjJt26mxw5npa485SY4UNoPi6yYLo"
}
}
Example response:

{
"jsonrpc": "2.0",
"result": {
"block_hash": "81k9ked5s34zh13EjJt26mxw5npa485SY4UNoPi6yYLo",
"changes": [
{
"type": "account_touched",
"account_id": "lee.testnet"
},
{
"type": "contract_code_touched",
"account_id": "lee.testnet"
},
{
"type": "access_key_touched",
"account_id": "lee.testnet"
}
]
},
"id": "dontcare"
}

What could go wrong?

When API request fails, RPC server returns a structured error response with a limited number of well-defined error variants, so client code can exhaustively handle all the possible error cases. Our JSON-RPC errors follow verror convention for structuring the error response:

{
"error": {
"name": <ERROR_TYPE>,
"cause": {
"info": {..},
"name": <ERROR_CAUSE>
},
"code": -32000,
"data": String,
"message": "Server error",
},
"id": "dontcare",
"jsonrpc": "2.0"
}

Heads up

The fields code, data, and message in the structure above are considered legacy ones and might be deprecated in the future. Please, don't rely on them.

Here is the exhaustive list of the error variants that can be returned by EXPERIMENTAL_changes_in_block method:

ERROR_TYPE
error.name
ERROR_CAUSE
error.cause.name
ReasonSolution
HANDLER_ERRORUNKNOWN_BLOCKThe requested block has not been produced yet or it has been garbage-collected (cleaned up to save space on the RPC node)
  • Check that the requested block is legit
  • If the block had been produced more than 5 epochs ago, try to send your request to an archival node
NOT_SYNCED_YETThe node is still syncing and the requested block is not in the database yet
  • Wait until the node finish syncing
  • Send a request to a different node which is synced
REQUEST_VALIDATION_ERRORPARSE_ERRORPassed arguments can't be parsed by JSON RPC server (missing arguments, wrong format, etc.)
  • Check the arguments passed and pass the correct ones
  • Check error.cause.info for more details
INTERNAL_ERRORINTERNAL_ERRORSomething went wrong with the node itself or overloaded
  • Try again later
  • Send a request to a different node
  • Check error.cause.info for more details

Chunk


Chunk Details

Returns details of a specific chunk. You can run a block details query to get a valid chunk hash.

chunk_id example:

{
"jsonrpc": "2.0",
"id": "dontcare",
"method": "chunk",
"params": {"chunk_id": "EBM2qg5cGr47EjMPtH88uvmXHDHqmWPzKaQadbWhdw22"}
}

block_id, shard_id example:

{
"jsonrpc": "2.0",
"id": "dontcare",
"method": "chunk",
"params": {"block_id": 58934027, "shard_id": 0}
}
Example response:

{
"jsonrpc": "2.0",
"result": {
"author": "bitcat.pool.f863973.m0",
"header": {
"chunk_hash": "EBM2qg5cGr47EjMPtH88uvmXHDHqmWPzKaQadbWhdw22",
"prev_block_hash": "2yUTTubrv1gJhTUVnHXh66JG3qxStBqySoN6wzRzgdVD",
"outcome_root": "11111111111111111111111111111111",
"prev_state_root": "HqWDq3f5HJuWnsTfwZS6jdAUqDjGFSTvjhb846vV27dx",
"encoded_merkle_root": "9zYue7drR1rhfzEEoc4WUXzaYRnRNihvRoGt1BgK7Lkk",
"encoded_length": 8,
"height_created": 17821130,
"height_included": 17821130,
"shard_id": 0,
"gas_used": 0,
"gas_limit": 1000000000000000,
"rent_paid": "0",
"validator_reward": "0",
"balance_burnt": "0",
"outgoing_receipts_root": "H4Rd6SGeEBTbxkitsCdzfu9xL9HtZ2eHoPCQXUeZ6bW4",
"tx_root": "11111111111111111111111111111111",
"validator_proposals": [],
"signature": "ed25519:4iPgpYAcPztAvnRHjfpegN37Rd8dTJKCjSd1gKAPLDaLcHUySJHjexMSSfC5iJVy28vqF9VB4psz13x2nt92cbR7"
},
"transactions": [],
"receipts": []
},
"id": "dontcare"
}

What could go wrong?

When API request fails, RPC server returns a structured error response with a limited number of well-defined error variants, so client code can exhaustively handle all the possible error cases. Our JSON-RPC errors follow verror convention for structuring the error response:

{
"error": {
"name": <ERROR_TYPE>,
"cause": {
"info": {..},
"name": <ERROR_CAUSE>
},
"code": -32000,
"data": String,
"message": "Server error",
},
"id": "dontcare",
"jsonrpc": "2.0"
}

Heads up

The fields code, data, and message in the structure above are considered legacy ones and might be deprecated in the future. Please, don't rely on them.

Here is the exhaustive list of the error variants that can be returned by chunk method:

ERROR_TYPE
error.name
ERROR_CAUSE
error.cause.name
ReasonSolution
HANDLER_ERRORUNKNOWN_BLOCKThe requested block has not been produced yet or it has been garbage-collected (cleaned up to save space on the RPC node)
  • Check that the requested block is legit
  • If the block had been produced more than 5 epochs ago, try to send your request to an archival node
UNKNOWN_CHUNKThe requested chunk can't be found in a database
  • Check that the requested chunk is legit
  • If the chunk had been produced more than 5 epochs ago, try to send your request to an archival node
INVALID_SHARD_IDProvided shard_id does not exist
  • Provide shard_id for an existing shard
NOT_SYNCED_YETThe node is still syncing and the requested chunk is not in the database yet
  • Wait until the node finish syncing
  • Send a request to a different node which is synced
REQUEST_VALIDATION_ERRORPARSE_ERRORPassed arguments can't be parsed by JSON RPC server (missing arguments, wrong format, etc.)
  • Check the arguments passed and pass the correct ones
  • Check error.cause.info for more details
INTERNAL_ERRORINTERNAL_ERRORSomething went wrong with the node itself or overloaded
  • Try again later
  • Send a request to a different node
  • Check error.cause.info for more details