Mercury JSON-RPC Protocols

Major Changes Compared to Version 0.1.0
Core Concept
RPC Methods
RPC Types

Major Changes Compared to Version 0.1.0

Optimize core concepts design by using identity instead of key addresses.
Align the design for balance type with CKB.
Make the core terms more accurate.
Optimize the design of original interfaces.
Support DAO query, deposit and withdraw operations.
Support to get a spent transaction according to an outpoint.
Add an interface for adjusting the number of ACP cells (creating and destroying cells are automatically inferred).
Provide more friendly error code design for applications.

Core Concept

Before exploring the Mercury interfaces, it is crucial to understand Mercury's core concepts.

Identity

CKB Cell Model is similar to that of UTXO in Bitcoin's terminology. Cell is the basic unit in CKB. The full set of unspent cells in CKB is considered being the full state of CKB at that particular point in time. A lock script defines the ownership of a cell.

Identity is an abstract concept that is used manage lock scripts of the same ownership. For example, an secp256k1 private key can unlock many lock scripts including secp256k1/blake160, acp and cheque. The secp256k1 public key corresponding to this private key can act as the identity of these lock scripts.

The structure of identity is <1 byte flag> <20 bytes identity content>. Identity is also used in RCE and pw-core.

flag: The flexible nature of CKB lock script design enables CKB to support any public chains' signature algorithm. For example, the community's pw-core project supports both the signature algorithms of BTC, ETH, EOS, TRON, and Doge etc. flag is used to distinguish the public keys of these different algorithms. Identity can also support complex contracts that cannot use a single public key to identify the ownership.
content: If a flag represents a public key, then content is the blake160 hash of the public key. Otherwise, content is the blake160 hash of the lock.

Address

Mercury supports ckb address format that is encoded from lock scripts. In the near future, Mercury will also support address specifications of some other public chains like BTC, ETH, EOS, TRON, and Doge etc. The support for other addresses will be implemented when Mercury supports pw-core.

Balance Type

free: unlimited spendable balance.
occupied: unspendable balance which is occupied by offering capacity. Only CKByte has this category.
frozen: unspendable balance besides occupied.

Double-entry Style Structure

Mercury has a double-entry style blockchain data structure (BlockInfo -> TransactionInfo -> Record) that is abstracted on top of the CKB data structure. The Record type is designed to reflect the asset amount changes of an address in a transaction.

Error Code

Mercury, as the middle layer to the application layer, must provide fixed error codes that applications can handle conveniently. The error code ranges are as follows:

The general error code is -1 ~ -999.
The error code range of the ckb-rpc interface is -1000 ~ -2999.
The error code range of Mercury is -10000 ~ -12999
RPC error codes is pre-defined here.

RPC Methods

Method `get_balance`

get_balance(item, asset_infos, tip_block_number)
- item: JsonItem
- asset_infos: Array<AssetInfo>
- tip_block_number: BlockNumber|null
- extra: "Dao"|"Cellbase"|null
result
- tip_block_number: BlockNumber
- balances: Array<Balance>

Usage

To return the balance of specified assets for the given item.

Params

item - Specify the object for getting the balance.
- If item is an identity, the balance of the addresses controlled by the identity will be accumulated.
- If item is an address, the balance of the unspent records of the address will be accumulated.
- If item is an unspent out point, the balance of the record will be returned.
tip_block_number - Specify a block of giving block_number as the tip of the blockchain for the query.
- If tip_block_number is null, the query is based on the latest blockchain.
- If tip_block_number is not null, the query is based on the historical blockchain with the specified tip.
asset_infos - Specify a set of asset types for the query.
- If asset_infos is empty, the query returns the balance of any asset matching the query parameters.
extra - Specify the filter applying to the querying.
- If extra is null, the query does not apply extra filter.
- If extra is Dao, the query will filter and keep the balance of cells that satisfy type script as Dao.
- If extra is Cellbase, the query will filter and keep the balance of cells satisfying Cellbase.

Returns

tip_block_number - Show the tip of the blockchain for the query.
balances - Show a list of balance information matching the query.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "get_balance",
  "params": [
    {
      "item": {
        "type": "Address", 
        "value": "ckt1qypyfy67hjrqmcyzs2cpvdfhd9lx6mgc68aqjx5d7w"
      },
      "asset_infos": [
        {
          "asset_type": "CKB",
          "udt_hash": "0x0000000000000000000000000000000000000000000000000000000000000000" 
        },
        {
          "asset_type": "UDT",
          "udt_hash": "0xf21e7350fa9518ed3cbb008e0e8c941d7e01a12181931d5608aa366ee22228bd" 
        }
      ],
      "tip_block_number": null
    }
  ]
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "balances": [
      {
        "ownership": "ckt1qq6pngwqn6e9vlm92th84rk0l4jp2h8lurchjmnwv8kq3rt5psf4vq2yjd0tepsduzpg9vqkx5mkjlndd5vdr7svk06gk", 
        "asset_info": {
          "asset_type": "CKB", 
          "udt_hash": "0x0000000000000000000000000000000000000000000000000000000000000000"
        }, 
        "free": "0x0", 
        "occupied": "0xd398b3800", 
        "frozen": "0x0"
      }, 
      {
        "ownership": "ckt1qq6pngwqn6e9vlm92th84rk0l4jp2h8lurchjmnwv8kq3rt5psf4vq2yjd0tepsduzpg9vqkx5mkjlndd5vdr7svk06gk", 
        "asset_info": {
          "asset_type": "UDT", 
          "udt_hash": "0xf21e7350fa9518ed3cbb008e0e8c941d7e01a12181931d5608aa366ee22228bd"
        }, 
        "free": "0x12c", 
        "occupied": "0x0", 
        "frozen": "0x0"
      }
    ], 
    "tip_block_number": "0x4eabe1"
  }, 
  "id": 42
}

Method `get_block_info`

get_block_info(block_number, block_hash)
- block_number: Uint64|null
- block_hash: string|null
result Return the BlockInfo of the specified block.

Usage

To return the double-entry style block structure of a specified block.

Params

block_number - Specify the block number for the query.
block_hash - Specify the block hash for the query.

Returns

If both block_number and block_hash are null, the query returns the latest block.
If block_number is null and block_hash is not null, the query returns the block matches block_hash.
If block_number is not null and block_hash is null, the query returns the block on the canonical chain matches block_number.
If both block_number and block_hash are not null, the query returns the block on the canonical chain both matching block_number and block_hash.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "get_block_info",
  "params": [
    {
      "block_number": "0x7c2c1",
      "block_hash": null
    }
  ]
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "block_number": "0x7c2c1", 
    "block_hash": "0x87405a4f39154fadb13bc23cf147985208ba33d61c277ec8409722434a694e70", 
    "parent_hash": "0x1f31dac8331e2041c7d19e57acf078b8a0a4d10531ffa6f59010ed080da9a736", 
    "timestamp": "0x174d85f13a0", 
    "transactions": [
      {
        "tx_hash": "0x32cc46179aa3d7b6eb29b9c692a9fc0b9c56d16751e42258193486d86e0fb5af", 
        "records": [
          {
            "out_point": {
              "tx_hash": "0x32cc46179aa3d7b6eb29b9c692a9fc0b9c56d16751e42258193486d86e0fb5af", 
              "index": "0x0"
            }, 
            "ownership": "ckt1qzda0cr08m85hc8jlnfp3zer7xulejywt49kt2rr0vthywaa50xwsqw6vjzy9kahx3lyvlgap8dp8ewd8g80pcgcexzrj", 
            "io_type": "Output", 
            "amount": "0x25b754c468", 
            "occupied": "0x0", 
            "asset_info": {
              "asset_type": "CKB", 
              "udt_hash": "0x0000000000000000000000000000000000000000000000000000000000000000"
            }, 
            "extra": {
              "type": "Cellbase"
            }, 
            "block_number": "0x7c2c1", 
            "epoch_number": "0x4d6036b00030b"
          }
        ], 
        "fee": "0x0", 
        "burn": [ ], 
        "timestamp": "0x174d85f13a0"
      }
    ]
  }, 
  "id": 42
}

Method `get_transaction_info`

get_transaction_info(tx_hash)
- tx_hash: string
result
- transaction: TransactionInfo|null
- status: "Pending"|"Proposed"|"Committed"|"Rejected"|"Unknown"

Usage

To return the double-entry style transaction along with the status of a specified transaction hash.

Params

tx_hash - Specify the transaction hash for the query.

Returns

transaction - double-entry style transaction of the specified tx_hash.
status
- Status "Pending" means the transaction is in the pool and not proposed yet.
- Status "Proposed" means the transaction is in the pool and has been proposed.
- Status "Committed" means the transaction has been committed to the canonical chain.
- Status "Rejected" means the transaction has been rejected by the pool.
- Status "Unknown" means the transaction was unknown for the pool.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "get_transaction_info",
  "params": [
    "0xd82e3050472d5b5f7603cb8141a57caffdcb2c20bd88577f77da23822d4d42a3"
  ]
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "transaction": {
      "tx_hash": "0xd82e3050472d5b5f7603cb8141a57caffdcb2c20bd88577f77da23822d4d42a3", 
      "records": [
        {
          "out_point": {
            "tx_hash": "0x26bc4c75669023ca4e599747f9f59184307428ad64c35d00417bd60a95e550a1", 
            "index": "0x0"
          }, 
          "ownership": "ckt1qzda0cr08m85hc8jlnfp3zer7xulejywt49kt2rr0vthywaa50xwsqv6e65dqy3kfslr3j2cdh4enhyqeqyawyssfrl02", 
          "io_type": "Input", 
          "amount": "0x3585d2040", 
          "occupied": "0x34e62ce00", 
          "asset_info": {
            "asset_type": "CKB", 
            "udt_hash": "0x0000000000000000000000000000000000000000000000000000000000000000"
          }, 
          "extra": {
            "type": "Frozen"
          }, 
          "block_number": "0x342814", 
          "epoch_number": "0x708028c000ca2"
        }, 
        {
          "out_point": {
            "tx_hash": "0xd82e3050472d5b5f7603cb8141a57caffdcb2c20bd88577f77da23822d4d42a3", 
            "index": "0x0"
          }, 
          "ownership": "ckt1qzda0cr08m85hc8jlnfp3zer7xulejywt49kt2rr0vthywaa50xwsqv6e65dqy3kfslr3j2cdh4enhyqeqyawyssfrl02", 
          "io_type": "Output", 
          "amount": "0x3585a1300", 
          "occupied": "0x34e62ce00", 
          "asset_info": {
            "asset_type": "CKB", 
            "udt_hash": "0x0000000000000000000000000000000000000000000000000000000000000000"
          }, 
          "extra": {
            "type": "Frozen"
          }, 
          "block_number": "0x3428a9", 
          "epoch_number": "0x7080321000ca2"
        }
      ], 
      "fee": "0x30d40", 
      "burn": [ ], 
      "timestamp": "0x17d18a1e595"
    }, 
    "status": "Committed"
  }, 
  "id": 42
}

Method `query_transactions`

query_transactions(item, asset_infos, extra, block_range, pagination, structure_type)
- item: JsonItem
- asset_infos: Array<AssetInfo>>
- extra: "Dao"|"Cellbase"|null
- block_range: Range|null
- pagination: PaginationRequest
- structure_type: "Native"|"DoubleEntry"
result
- response: Array<TxView>
- next_cursor: Uint64|null
- count: Uint64|null

Usage

To return generic transactions and pagination settings from practical searching.

Params

item - Specify the object used to query the involved transactions.
- If item is an identity, the query returns the transactions that involve addresses controlled by the identity.
- If item is an address, the query returns the transactions that involve records of the address.
- If item is an out point, the query returns the transactions that involve the record.
asset_infos - Specify a set of asset types for the query.
- If asset_infos is empty, the query returns the transactions that involve any asset matching the query.
extra - Specify the filter applying to the querying.
- If extra is null, the query does not apply extra filter.
block_range - Specify the block range for the query.
pagination - Specify the pagination set.
- If pagination is null, no pagination set will be applied.
structure_type - Specify the structure type of the transactions.
- If structure_type is Native, the query returns CKB native structure of the transactions.
- If structure_type is DoubleEntry, the query returns the double-entry style structure of the transactions.

Returns

response - Return a list of transactions meets the query.
next_cursor - Return the beginning cursor for the next query.
- If next_cursor is null, there's no further transactions matching the query.
count - The total count of transactions matching the query and ignoring pagination set. count can be used for calculating total pages.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "query_transactions",
  "params": [
    {
      "item": {
        "type": "Address",
        "value": "ckt1qq6pngwqn6e9vlm92th84rk0l4jp2h8lurchjmnwv8kq3rt5psf4vq06y24q4tc4tfkgze35cc23yprtpzfrzygsptkzn"
      },
      "asset_infos": [],
      "extra": null,
      "block_range": null,
      "pagination": {
        "cursor": null,
        "order": "asc",
        "limit": "0x1",
        "return_count": true
      },
      "structure_type": "DoubleEntry"
    }
  ]
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "response": [
      {
        "type": "TransactionInfo", 
        "value": {
          "tx_hash": "0xc095eefa53e137e6e7be70b1df836513e5b28a4578845f7aa26853d456a9887f", 
          "records": [
            {
              "out_point": {
                "tx_hash": "0x83bc7b8b8936b016b98dfd489a535f6cf7c3d87e60e53f83cc69e8f50c9f30fa", 
                "index": "0x0"
              }, 
              "ownership": "ckt1qzda0cr08m85hc8jlnfp3zer7xulejywt49kt2rr0vthywaa50xwsq06y24q4tc4tfkgze35cc23yprtpzfrzygljdjh9", 
              "io_type": "Input", 
              "amount": "0xe8d4a51000", 
              "occupied": "0x0", 
              "asset_info": {
                "asset_type": "CKB", 
                "udt_hash": "0x0000000000000000000000000000000000000000000000000000000000000000"
              }, 
              "extra": null, 
              "block_number": "0x396686", 
              "epoch_number": "0x5de0348000d61"
            }, 
            {
              "out_point": {
                "tx_hash": "0xc095eefa53e137e6e7be70b1df836513e5b28a4578845f7aa26853d456a9887f", 
                "index": "0x0"
              }, 
              "ownership": "ckt1qq6pngwqn6e9vlm92th84rk0l4jp2h8lurchjmnwv8kq3rt5psf4vq06y24q4tc4tfkgze35cc23yprtpzfrzygsptkzn", 
              "io_type": "Output", 
              "amount": "0x0", 
              "occupied": "0x0", 
              "asset_info": {
                "asset_type": "UDT", 
                "udt_hash": "0xf21e7350fa9518ed3cbb008e0e8c941d7e01a12181931d5608aa366ee22228bd"
              }, 
              "extra": null, 
              "block_number": "0x397271", 
              "epoch_number": "0x3fc0257000d63"
            }, 
            {
              "out_point": {
                "tx_hash": "0xc095eefa53e137e6e7be70b1df836513e5b28a4578845f7aa26853d456a9887f", 
                "index": "0x0"
              }, 
              "ownership": "ckt1qq6pngwqn6e9vlm92th84rk0l4jp2h8lurchjmnwv8kq3rt5psf4vq06y24q4tc4tfkgze35cc23yprtpzfrzygsptkzn", 
              "io_type": "Output", 
              "amount": "0xe8d4a50dee", 
              "occupied": "0x34e62ce00", 
              "asset_info": {
                "asset_type": "CKB", 
                "udt_hash": "0x0000000000000000000000000000000000000000000000000000000000000000"
              }, 
              "extra": null, 
              "block_number": "0x397271", 
              "epoch_number": "0x3fc0257000d63"
            }
          ], 
          "fee": "0x212", 
          "burn": [
            {
              "udt_hash": "0xf21e7350fa9518ed3cbb008e0e8c941d7e01a12181931d5608aa366ee22228bd", 
              "amount": "0x0"
            }
          ], 
          "timestamp": "0x17dbe7d6375"
        }
      }
    ], 
    "next_cursor": "0x39727100000007", 
    "count": "0x9"
  }, 
  "id": 42
}

Method `get_account_info`

get_account_info(item, asset_info)
- item: JsonItem
- asset_info: AssetInfo
result
- account_number: Uint32
- account_address: string
- account_type: "Acp"|"PwLock"

Usage

To return the account information for the given item and asset information. The account number returned can be used to determine whether an item has at least one specific UDT asset account.

Params

item - Specify the object for getting the account information.
- If item is an identity, the account information corresponding to the identity will be queried.
- If item is an address, the account information corresponding to the address will be queried
- If item is an unspent out point, the account information corresponding to the record will be queried.
asset_infos - Specify a set of asset types for the query.

Returns

account_number: The number of accounts for a specific UDT asset.
account_address: The address corresponding to the account.
account_type: The type of account.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "get_account_info",
  "params": [
    {
      "item": {
        "type": "Address",
        "value": "ckt1qzda0cr08m85hc8jlnfp3zer7xulejywt49kt2rr0vthywaa50xwsq06y24q4tc4tfkgze35cc23yprtpzfrzygljdjh9"
      },
      "asset_info": {
        "asset_type": "UDT",
        "udt_hash": "0xf21e7350fa9518ed3cbb008e0e8c941d7e01a12181931d5608aa366ee22228bd"
      }
    }
  ]
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "account_number": "0x1", 
    "account_address": "ckt1qq6pngwqn6e9vlm92th84rk0l4jp2h8lurchjmnwv8kq3rt5psf4vq06y24q4tc4tfkgze35cc23yprtpzfrzygsptkzn", 
    "account_type": "Acp"
  }, 
  "id": 42
}

Method `build_adjust_account_transaction`

build_adjust_account_transaction(item, from, asset_info, account_number, extra_ckb, fee_rate)
- item: JsonItem
- from: Array<JsonItem>
- asset_info: AssetInfo
- account_number: Uint32|null
- extra_ckb: Uint64|null
- fee_rate: Uint64|null
result
- tx_view: TransactionView|null
- script_groups: Array<ScriptGroup>

Usage

To control the quantity of accounts.

In CKB, users must create asset accounts for receiving UDT assets. Each account occupies 142 CKB and is bound with one single asset type. Normally, it's enough for a user to create one account for one asset. But sometimes, business users need multiple accounts to receive multiple transfers at the same time.

If the number of existing accounts is below the required number, build_adjust_account_transaction builds transactions to create the accounts.
If the number of existing accounts is above the required number, build_adjust_account_transaction builds transactions to recycle the accounts. The UDT assets in a recycled account will move to the remained account.
- If the amount of the UDT assets is not zero, the required number cannot be zero. At least one account is required to store the UDT assets.
If the number of existing accounts is equal to the required number, build_adjust_account_transaction does not build any transaction.

Params

item - Specify the object for creating or recycling accounts.
- If item is an identity, the account controlled by the identity will be created or recycled.
- If item is an address, the account controlled by the identity that is behind the address will be created or recycled.
- If item is an out point, the account controlled by the identity that is behind the record will be created or recycled.
from - Specify the object for providing CKB for creating asset accounts.
- If from is null, the method obtains CKB from item.
- The elements in the from array must be the same kind of enumeration.
asset_info - Specify an asset type for creating asset accounts.
account_number - Specify a target account number.
extra_ckb - Specify the amount of extra CKB injected into an account for paying fees or other usage.
fee_rate - The unit for the fee is shannon or KB. The default fee rate is 1000. 1 CKB = 10⁸ shannons.

Returns

tx_view - The raw transaction of creating/recycling account.
script_groups - Script groups for signing.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "build_adjust_account_transaction",
  "params": [
    {
      "item": {
        "type": "Identity",
        "value": "00791359d5f872fc4e72185034da0becb5febce98b"
      },
      "from": [],
      "asset_info": {
        "asset_type": "UDT",
        "udt_hash": "0xf21e7350fa9518ed3cbb008e0e8c941d7e01a12181931d5608aa366ee22228bd"
      },
      "account_number": null,
      "extra_ckb": null,
      "fee_rate": null
    }
  ]
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "tx_view": {
      "version": "0x0", 
      "cell_deps": [
        {
          "out_point": {
            "tx_hash": "0xec26b0f85ed839ece5f11c4c4e837ec359f5adc4420410f6453b1f6b60fb96a6", 
            "index": "0x0"
          }, 
          "dep_type": "dep_group"
        }, 
        {
          "out_point": {
            "tx_hash": "0xf8de3bb47d055cdf460d93a2a6e1b05f7432f9777c8c474abf4eec1d4aee5d37", 
            "index": "0x0"
          }, 
          "dep_type": "dep_group"
        }, 
        {
          "out_point": {
            "tx_hash": "0xe12877ebd2c3c364dc46c5c992bcfaf4fee33fa13eebdf82c591fc9825aab769", 
            "index": "0x0"
          }, 
          "dep_type": "code"
        }
      ], 
      "header_deps": [ ], 
      "inputs": [
        {
          "since": "0x0", 
          "previous_output": {
            "tx_hash": "0xcf9483952f04cba2b814d029c153e9ef6ce2f1d7f63dd4024246cbbdb69fc3dd", 
            "index": "0x1"
          }
        }
      ], 
      "outputs": [
        {
          "capacity": "0x34e62ce00", 
          "lock": {
            "code_hash": "0x3419a1c09eb2567f6552ee7a8ecffd64155cffe0f1796e6e61ec088d740c1356", 
            "hash_type": "type", 
            "args": "0x791359d5f872fc4e72185034da0becb5febce98b"
          }, 
          "type": {
            "code_hash": "0xc5e5dcf215925f7ef4dfaf5f4b4f105bc321c02776d6e7d52a1db3fcd9d011a4", 
            "hash_type": "type", 
            "args": "0x7c7f0ee1d582c385342367792946cff3767fe02f26fd7f07dba23ae3c65b28bc"
          }
        }, 
        {
          "capacity": "0x42b34256f08a", 
          "lock": {
            "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
            "hash_type": "type", 
            "args": "0x791359d5f872fc4e72185034da0becb5febce98b"
          }, 
          "type": null
        }
      ], 
      "outputs_data": [
        "0x00000000000000000000000000000000", 
        "0x"
      ], 
      "witnesses": [
        "0x55000000100000005500000055000000410000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
      ], 
      "hash": "0xa70b07354e20ecfce43d651f7e159a7ed16d7d2a5a818b869f0f99054540e3f7"
    }, 
    "script_groups": [
      {
        "script": {
          "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
          "hash_type": "type", 
          "args": "0x791359d5f872fc4e72185034da0becb5febce98b"
        }, 
        "group_type": "Lock", 
        "input_indices": [
          "0x0"
        ], 
        "output_indices": [ ]
      }, 
      {
        "script": {
          "code_hash": "0xc5e5dcf215925f7ef4dfaf5f4b4f105bc321c02776d6e7d52a1db3fcd9d011a4", 
          "hash_type": "type", 
          "args": "0x7c7f0ee1d582c385342367792946cff3767fe02f26fd7f07dba23ae3c65b28bc"
        }, 
        "group_type": "Type", 
        "input_indices": [ ], 
        "output_indices": [
          "0x0"
        ]
      }
    ]
  }, 
  "id": 42
}

Method `build_transfer_transaction`

build_transfer_transaction(asset_info, from, to, output_capacity_provider, pay_fee, fee_rate, since)
- asset_info: AssetInfo
- from: Array<JsonItem>
- to: Array<ToInfo>
- output_capacity_provider: "From"|"To"|null
- pay_fee: "From"|"To"|null
- fee_rate: Uint64|null
- since: SinceConfig|null
result
- tx_view: TransactionView
- script_groups: Array<ScriptGroup>

Usage

To build a raw transfer transaction and script groups for signing.

Params

asset_info - Specify the asset type for the transfer.
from - Specify the sender.
- The elements in the array must be the same kind of enumeration.
- If JsonItem is an identity, the assets of addresses controlled by the identity will be pooled.
- If JsonItem is an address, the assets of unspent records of the address will be pooled.
- If JsonItem is an unspent out point, the assets of the out point will be pooled.
to - Specify recipient's address and transfer amount.
output_capacity_provider - Specify the party that provides capacity.
- If it is "From", it means that the from will provides the capacity required for the transfer, and the addresses of to represents the corresponding lock.
- If it is "To", it means that the to will provides the capacity required for the transfer, and the addresses of to must correspond to locks with acp behavior.
- If it is null, same as "To", it means that from will not provide the required capacity, and the addresses of to must correspond to locks with acp behavior. If it is To, same as None
pay_fee - Specify the account for paying the fee.
fee_rate - The unit for the fee is shannon or KB. The default fee rate is 1000. 1 CKB = 10⁸ shannons.
since - Specify the since configuration which prevents the transaction to be mined before a certain block timestamp or a block number.

Returns

tx_view - The raw transfer transaction.
script_groups - Script groups for signing.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "build_transfer_transaction",
  "params": [{
    "asset_info": {
      "asset_type": "CKB",
      "udt_hash": "0x0000000000000000000000000000000000000000000000000000000000000000"
    },
    "from": [
      {
        "type": "Address",
        "value": "ckt1qyq90n9s00ngwhmpmymrdv8wzxm82j2xylfq2agzzj"
      }
    ],
    "to": [
      {
        "address": "ckt1qyqr79tnk3pp34xp92gerxjc4p3mus2690psf0dd70",
        "amount": "0x23f2f5080"
      }
    ],
    "output_capacity_provider": "From",
    "pay_fee": "From",
    "fee_rate": null,
    "since": {
      "flag": "Absolute",
      "type_": "BlockNumber",
      "value": "0x5b8d80"
    }
  }]
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "tx_view": {
      "version": "0x0", 
      "cell_deps": [
        {
          "out_point": {
            "tx_hash": "0xf8de3bb47d055cdf460d93a2a6e1b05f7432f9777c8c474abf4eec1d4aee5d37", 
            "index": "0x0"
          }, 
          "dep_type": "dep_group"
        }
      ], 
      "header_deps": [ ], 
      "inputs": [
        {
          "since": "0x5b8d80", 
          "previous_output": {
            "tx_hash": "0x8f8c79eb6671709633fe6a46de93c0fedc9c1b8a6527a18d3983879542635c9f", 
            "index": "0x9"
          }
        }
      ], 
      "outputs": [
        {
          "capacity": "0x23f2f5080", 
          "lock": {
            "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
            "hash_type": "type", 
            "args": "0x3f1573b44218d4c12a91919a58a863be415a2bc3"
          }, 
          "type": null
        }, 
        {
          "capacity": "0xba821310c6a38b0", 
          "lock": {
            "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
            "hash_type": "type", 
            "args": "0x57ccb07be6875f61d93636b0ee11b675494627d2"
          }, 
          "type": null
        }
      ], 
      "outputs_data": [
        "0x", 
        "0x"
      ], 
      "witnesses": [
        "0x55000000100000005500000055000000410000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
      ], 
      "hash": "0x923da07a578f966209fcd68a418e293dd5c38733fe98b1858a1e89507a238f42"
    }, 
    "script_groups": [
      {
        "script": {
          "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
          "hash_type": "type", 
          "args": "0x57ccb07be6875f61d93636b0ee11b675494627d2"
        }, 
        "group_type": "Lock", 
        "input_indices": [
          "0x0"
        ], 
        "output_indices": [ ]
      }
    ]
  }, 
  "id": 42
}

Method `build_simple_transfer_transaction`

build_simple_transfer_transaction(asset_info, from, to, fee_rate, since)
- asset_info: AssetInfo
- from: Array<string>
- to: Array<ToInfo>
- fee_rate: Uint64|null
- since: SinceConfig|null
result
- tx_view: TransactionView
- script_groups: Array<ScriptGroup>

Usage

To build a raw transfer transaction and script groups for signing, and infer output_capacity_provider based on a simple strategy.

Params

asset_info - Specify the asset type for the transfer.
from - Specify the senders' addresses.
to - Specify recipient's address and amount.
fee_rate - The unit for the fee is shannon or KB. The default fee rate is 1000. 1 CKB = 10⁸ shannons.
since - Specify the since configuration which prevents the transaction to be mined before a certain block timestamp or a block number.

Returns

tx_view - The raw transfer transaction.
script_groups - Script groups for signing.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "build_simple_transfer_transaction",
  "params": [{
    "asset_info": {
      "asset_type": "CKB",
      "udt_hash": "0x0000000000000000000000000000000000000000000000000000000000000000"
    },
    "from": [
      "ckt1qyqr79tnk3pp34xp92gerxjc4p3mus2690psf0dd70"
    ],
    "to": [
      {
        "address": "ckt1qyqg88ccqm59ksxp85788pnqg4rkejdgcg2qxcu2qf",
        "amount": "0x283baec00"
      }
    ],
    "fee_rate": null,
    "since": null
  }]
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "tx_view": {
      "version": "0x0", 
      "cell_deps": [
        {
          "out_point": {
            "tx_hash": "0xf8de3bb47d055cdf460d93a2a6e1b05f7432f9777c8c474abf4eec1d4aee5d37", 
            "index": "0x0"
          }, 
          "dep_type": "dep_group"
        }
      ], 
      "header_deps": [ ], 
      "inputs": [
        {
          "since": "0x0", 
          "previous_output": {
            "tx_hash": "0xea8c89734bde4f83809644d451fcda7784ca5c1ed89181933bbea331de39104f", 
            "index": "0xb"
          }
        }
      ], 
      "outputs": [
        {
          "capacity": "0x283baec00", 
          "lock": {
            "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
            "hash_type": "type", 
            "args": "0x839f1806e85b40c13d3c73866045476cc9a8c214"
          }, 
          "type": null
        }, 
        {
          "capacity": "0x30ee750f3784df2", 
          "lock": {
            "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
            "hash_type": "type", 
            "args": "0x3f1573b44218d4c12a91919a58a863be415a2bc3"
          }, 
          "type": null
        }
      ], 
      "outputs_data": [
        "0x", 
        "0x"
      ], 
      "witnesses": [
        "0x55000000100000005500000055000000410000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
      ], 
      "hash": "0x5cb4202fc2da05187901399658c982427b4859d07a69667bf24a5be4b41b285e"
    }, 
    "script_groups": [
      {
        "script": {
          "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
          "hash_type": "type", 
          "args": "0x3f1573b44218d4c12a91919a58a863be415a2bc3"
        }, 
        "group_type": "Lock", 
        "input_indices": [
          "0x0"
        ], 
        "output_indices": [ ]
      }
    ]
  }, 
  "id": 42
}

Method `register_addresses`

register_addresses(addresses)
- addresses: Array<string>
result
- A list of lock script hash of the registered addresses.

Deprecated:

This rpc is currently used very rarely and will be removed in a future version.

Usage

To reveal the receivers' addresses of a cheque cell. Attention: official public servers do not open this method.

Params

addresses - Registered addresses.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "register_addresses",
  "params": [[
    "ckt1qyq8jy6e6hu89lzwwgv9qdx6p0kttl4uax9s79m0mr"
  ]]
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": [
    "0xca9fc3cbc670e67451e920e6f57c647f529e567f"
  ], 
  "id": 42
}

Method `build_dao_deposit_transaction`

build_deposit_transaction(from, to, amount, fee_rate)
- from: Array<JsonItem>
- to: string|null
- amount: Uint64
- fee_rate: Uint64|null
result
- tx_view: TransactionView
- script_groups: Array<ScriptGroup>

Usage

To build a transaction to deposit specified amount of CKB to Dao.

Params

from - Specify the providers of the CKB for Dao deposition.
- The elements in the array must be the same kind of enumeration.
- If JsonItem is an identity, the assets of addresses controlled by the identity will be pooled.
- If JsonItem is an address, the assets of unspent records of the address will be pooled.
- If JsonItem is an unspent out point, the assets of the out point will be pooled.
to - Specify the recipient of the deposit.
- If to is null, the CKB is deposited to the first from address.
amount - Specify the amount of CKB for the deposit. The deposit amount should larger than 200 CKB.
fee_rate - The unit for the fee is shannon or KB. The default fee rate is 1000. 1 CKB = 10⁸ shannons.

Returns

tx_view - The raw transfer transaction.
script_groups - Script groups for signing.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "build_dao_deposit_transaction",
  "params": [{
    "from": [
      {
        "type": "Address",
        "value": "ckt1qyqr79tnk3pp34xp92gerxjc4p3mus2690psf0dd70"
      }
    ],
    "to": null,
    "amount": "0x4a817c800",
    "fee_rate": null
  }]
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "tx_view": {
      "version": "0x0", 
      "cell_deps": [
        {
          "out_point": {
            "tx_hash": "0x8f8c79eb6671709633fe6a46de93c0fedc9c1b8a6527a18d3983879542635c9f", 
            "index": "0x2"
          }, 
          "dep_type": "code"
        }, 
        {
          "out_point": {
            "tx_hash": "0xf8de3bb47d055cdf460d93a2a6e1b05f7432f9777c8c474abf4eec1d4aee5d37", 
            "index": "0x0"
          }, 
          "dep_type": "dep_group"
        }
      ], 
      "header_deps": [ ], 
      "inputs": [
        {
          "since": "0x0", 
          "previous_output": {
            "tx_hash": "0xea8c89734bde4f83809644d451fcda7784ca5c1ed89181933bbea331de39104f", 
            "index": "0xb"
          }
        }
      ], 
      "outputs": [
        {
          "capacity": "0x4a817c800", 
          "lock": {
            "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
            "hash_type": "type", 
            "args": "0x3f1573b44218d4c12a91919a58a863be415a2bc3"
          }, 
          "type": {
            "code_hash": "0x82d76d1b75fe2fd9a27dfbaa65a039221a380d76c926f378d3f81cf3e7e13f2e", 
            "hash_type": "type", 
            "args": "0x"
          }
        }, 
        {
          "capacity": "0x30ee74ecf1b7190", 
          "lock": {
            "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
            "hash_type": "type", 
            "args": "0x3f1573b44218d4c12a91919a58a863be415a2bc3"
          }, 
          "type": null
        }
      ], 
      "outputs_data": [
        "0x0000000000000000", 
        "0x"
      ], 
      "witnesses": [
        "0x55000000100000005500000055000000410000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
      ], 
      "hash": "0x68a9eee4e15eb4da3083a5e58ab8f229baf1027ee6a8c3d791f213a4009f0c71"
    }, 
    "script_groups": [
      {
        "script": {
          "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
          "hash_type": "type", 
          "args": "0x3f1573b44218d4c12a91919a58a863be415a2bc3"
        }, 
        "group_type": "Lock", 
        "input_indices": [
          "0x0"
        ], 
        "output_indices": [ ]
      }, 
      {
        "script": {
          "code_hash": "0x82d76d1b75fe2fd9a27dfbaa65a039221a380d76c926f378d3f81cf3e7e13f2e", 
          "hash_type": "type", 
          "args": "0x"
        }, 
        "group_type": "Type", 
        "input_indices": [ ], 
        "output_indices": [
          "0x0"
        ]
      }
    ]
  }, 
  "id": 42
}

Method `build_dao_withdraw_transaction`

build_dao_withdraw_transaction(from, fee_rate)
- from: Array<JsonItem>
- fee_rate: Uint64|null
result
- tx_view: TransactionView
- script_groups: Array<ScriptGroup>

Usage

To build a transaction to withdraw specified deposited CKB from DAO.

Params

from - Specify the providers for the deposit cells and fee.
fee_rate - The unit for the fee is shannon or KB. The default fee rate is 1000. 1 CKB = 10⁸ shannons.

Returns

tx_view - The raw transfer transaction.
script_groups - Script groups for signing.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "build_dao_withdraw_transaction",
  "params": [{
    "from": [
      {
        "type": "OutPoint",
        "value": {
            "tx_hash": "0x1b9757e95346d4782767c579f1d1131ead18043154229762911f82b75119f1d6", 
            "index": "0x0"
          }
      }, {
        "type": "Address",
        "value": "ckt1qyqr79tnk3pp34xp92gerxjc4p3mus2690psf0dd70"
      }
    ],
    "fee_rate": null
  }]
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "tx_view": {
      "version": "0x0", 
      "cell_deps": [
        {
          "out_point": {
            "tx_hash": "0x8f8c79eb6671709633fe6a46de93c0fedc9c1b8a6527a18d3983879542635c9f", 
            "index": "0x2"
          }, 
          "dep_type": "code"
        }, 
        {
          "out_point": {
            "tx_hash": "0xf8de3bb47d055cdf460d93a2a6e1b05f7432f9777c8c474abf4eec1d4aee5d37", 
            "index": "0x0"
          }, 
          "dep_type": "dep_group"
        }
      ], 
      "header_deps": [
        "0xc286c6ba57156f5457247dbb42b9d2599d93fd47c2cf4776e5410b70d559bb41"
      ], 
      "inputs": [
        {
          "since": "0x0", 
          "previous_output": {
            "tx_hash": "0x1b9757e95346d4782767c579f1d1131ead18043154229762911f82b75119f1d6", 
            "index": "0x0"
          }
        }, 
        {
          "since": "0x0", 
          "previous_output": {
            "tx_hash": "0xea8c89734bde4f83809644d451fcda7784ca5c1ed89181933bbea331de39104f", 
            "index": "0xb"
          }
        }
      ], 
      "outputs": [
        {
          "capacity": "0x25ff7a600", 
          "lock": {
            "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
            "hash_type": "type", 
            "args": "0xc8f77049fe93a1f452716edc4a87000406a9ce56"
          }, 
          "type": {
            "code_hash": "0x82d76d1b75fe2fd9a27dfbaa65a039221a380d76c926f378d3f81cf3e7e13f2e", 
            "hash_type": "type", 
            "args": "0x"
          }
        }, 
        {
          "capacity": "0x30ee753773338e7", 
          "lock": {
            "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
            "hash_type": "type", 
            "args": "0x3f1573b44218d4c12a91919a58a863be415a2bc3"
          }, 
          "type": null
        }
      ], 
      "outputs_data": [
        "0x03c90f0000000000", 
        "0x"
      ], 
      "witnesses": [
        "0x55000000100000005500000055000000410000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", 
        "0x55000000100000005500000055000000410000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
      ], 
      "hash": "0x2f22299e53395b166572d5278d8451c22b7819d32294371b74c26dbfbbda21ac"
    }, 
    "script_groups": [
      {
        "script": {
          "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
          "hash_type": "type", 
          "args": "0xc8f77049fe93a1f452716edc4a87000406a9ce56"
        }, 
        "group_type": "Lock", 
        "input_indices": [
          "0x0"
        ], 
        "output_indices": [ ]
      }, 
      {
        "script": {
          "code_hash": "0x82d76d1b75fe2fd9a27dfbaa65a039221a380d76c926f378d3f81cf3e7e13f2e", 
          "hash_type": "type", 
          "args": "0x"
        }, 
        "group_type": "Type", 
        "input_indices": [
          "0x0"
        ], 
        "output_indices": [
          "0x0"
        ]
      }, 
      {
        "script": {
          "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
          "hash_type": "type", 
          "args": "0x3f1573b44218d4c12a91919a58a863be415a2bc3"
        }, 
        "group_type": "Lock", 
        "input_indices": [
          "0x1"
        ], 
        "output_indices": [ ]
      }
    ]
  }, 
  "id": 42
}

Method `build_dao_claim_transaction`

build_dao_claim_transaction(from, to, fee_rate)
- from: Array<JsonItem>
- to: string|null
- fee_rate: Uint64|null
result
- tx_view: TransactionView
- script_groups: Array<ScriptGroup>

Usage

To build a transaction to claim specified withdrawing CKB from DAO.

Params

from - Specify the providers for the withdrawing cells and fee.
to - Specify the recipient of the claim.
- If to is null, the CKB is claim to the first from address.
fee_rate - The unit for the fee is shannon or KB. The default fee rate is 1000. 1 CKB = 10⁸ shannons.

Returns

tx_view - The raw transfer transaction.
script_groups - Script groups for signing.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "build_dao_claim_transaction",
  "params": [{
    "from": [{
      "type": "Address",
      "value": "ckt1qyqzqfj8lmx9h8vvhk62uut8us844v0yh2hsnqvvgc"
    }],
    "fee_rate": null
  }]
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "tx_view": {
      "version": "0x0", 
      "cell_deps": [
        {
          "out_point": {
            "tx_hash": "0x8f8c79eb6671709633fe6a46de93c0fedc9c1b8a6527a18d3983879542635c9f", 
            "index": "0x2"
          }, 
          "dep_type": "code"
        }, 
        {
          "out_point": {
            "tx_hash": "0xf8de3bb47d055cdf460d93a2a6e1b05f7432f9777c8c474abf4eec1d4aee5d37", 
            "index": "0x0"
          }, 
          "dep_type": "dep_group"
        }
      ], 
      "header_deps": [
        "0x4ae8b8ffd838f7ee8ba8d100cc9c33eb6f2c52e3c5b486c8dce79e5ffa669753", 
        "0x4d04a3679e02da060ed74d4672429edc69885bdc6a51977af72d5ac17dc2e17a", 
        "0x2709f048a9a686344008b3089fce67f4a8fa8b7438aa8f764155d626941a0916", 
        "0x3cead765c114f2bb718751914a9a731079c0a0f79963e84939bf46d7bab8680d", 
        "0x097caae3bc3f8170f38378e06f5a686674b2347cb02d9f672701a5b832bf011c"
      ], 
      "inputs": [
        {
          "since": "0x2007080295000dc2", 
          "previous_output": {
            "tx_hash": "0x05fd615326f3ccb56076b1d45c1acc33b8e605aa1e327fdc2fc54d17f54dce1c", 
            "index": "0x1"
          }
        }, 
        {
          "since": "0x2007080295000dc2", 
          "previous_output": {
            "tx_hash": "0x05fd615326f3ccb56076b1d45c1acc33b8e605aa1e327fdc2fc54d17f54dce1c", 
            "index": "0x2"
          }
        }, 
        {
          "since": "0x200708053f000d6f", 
          "previous_output": {
            "tx_hash": "0x05fd615326f3ccb56076b1d45c1acc33b8e605aa1e327fdc2fc54d17f54dce1c", 
            "index": "0x3"
          }
        }, 
        {
          "since": "0x2007080457000d6f", 
          "previous_output": {
            "tx_hash": "0x05fd615326f3ccb56076b1d45c1acc33b8e605aa1e327fdc2fc54d17f54dce1c", 
            "index": "0x4"
          }
        }, 
        {
          "since": "0x20070800a0000d6f", 
          "previous_output": {
            "tx_hash": "0x05fd615326f3ccb56076b1d45c1acc33b8e605aa1e327fdc2fc54d17f54dce1c", 
            "index": "0x5"
          }
        }
      ], 
      "outputs": [
        {
          "capacity": "0x22f7b3dac7", 
          "lock": {
            "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
            "hash_type": "type", 
            "args": "0x202647fecc5b9d8cbdb4ae7167e40f5ab1e4baaf"
          }, 
          "type": null
        }
      ], 
      "outputs_data": [
        "0x"
      ], 
      "witnesses": [
        "0x61000000100000005500000061000000410000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080000000000000000000000", 
        "0x1c00000010000000100000001c000000080000000000000000000000", 
        "0x1c00000010000000100000001c000000080000000200000000000000", 
        "0x1c00000010000000100000001c000000080000000300000000000000", 
        "0x1c00000010000000100000001c000000080000000400000000000000"
      ], 
      "hash": "0x1b153988b2e8dfa5422415fade5c40e9403f3e9f6f35c06d78014674c188d76a"
    }, 
    "script_groups": [
      {
        "script": {
          "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
          "hash_type": "type", 
          "args": "0x202647fecc5b9d8cbdb4ae7167e40f5ab1e4baaf"
        }, 
        "group_type": "Lock", 
        "input_indices": [
          "0x0", 
          "0x1", 
          "0x2", 
          "0x3", 
          "0x4"
        ], 
        "output_indices": [ ]
      }, 
      {
        "script": {
          "code_hash": "0x82d76d1b75fe2fd9a27dfbaa65a039221a380d76c926f378d3f81cf3e7e13f2e", 
          "hash_type": "type", 
          "args": "0x"
        }, 
        "group_type": "Type", 
        "input_indices": [
          "0x0", 
          "0x1", 
          "0x2", 
          "0x3", 
          "0x4"
        ], 
        "output_indices": [ ]
      }
    ]
  }, 
  "id": 42
}

Method `get_spent_transaction`

get_spent_transaction(outpoint, view_type)
- outpoint: OutPoint
- structure_type: "Native"|"DoubleEntry"
result
- TxView

Usage

To obtain the transaction that uses the specified outpoint as the input.

Params

outpoint - Specify the outpoint for the query.
structure_type - Specify the structure type of the returning transaction.

Returns

TxView - The spent transaction.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "get_spent_transaction",
  "params": [{
    "outpoint": {
      "tx_hash": "0xb2e952a30656b68044e1d5eed69f1967347248967785449260e3942443cbeece",
      "index": "0x1"
    },
    "structure_type": "DoubleEntry"
  }]
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "type": "TransactionInfo", 
    "value": {
      "tx_hash": "0x2c4e242e034e70a7b8ae5f899686c256dad2a816cc36ddfe2c1460cbbbbaaaed", 
      "records": [
        {
          "out_point": {
            "tx_hash": "0xb2e952a30656b68044e1d5eed69f1967347248967785449260e3942443cbeece", 
            "index": "0x1"
          }, 
          "ownership": "ckt1qzda0cr08m85hc8jlnfp3zer7xulejywt49kt2rr0vthywaa50xwsqvrnuvqd6zmgrqn60rnsesy23mvex5vy9q0g8hfd", 
          "io_type": "Input", 
          "amount": "0xd9ac33e984", 
          "occupied": "0x0", 
          "asset_info": {
            "asset_type": "CKB", 
            "udt_hash": "0x0000000000000000000000000000000000000000000000000000000000000000"
          }, 
          "extra": null, 
          "block_number": "0x2877b6", 
          "epoch_number": "0x70804bf000af6"
        }, 
        {
          "out_point": {
            "tx_hash": "0x2c4e242e034e70a7b8ae5f899686c256dad2a816cc36ddfe2c1460cbbbbaaaed", 
            "index": "0x0"
          }, 
          "ownership": "ckt1qzda0cr08m85hc8jlnfp3zer7xulejywt49kt2rr0vthywaa50xwsqvrnuvqd6zmgrqn60rnsesy23mvex5vy9q0g8hfd", 
          "io_type": "Output", 
          "amount": "0x2540be400", 
          "occupied": "0x0", 
          "asset_info": {
            "asset_type": "CKB", 
            "udt_hash": "0x0000000000000000000000000000000000000000000000000000000000000000"
          }, 
          "extra": null, 
          "block_number": "0x296669", 
          "epoch_number": "0x7080462000b18"
        }, 
        {
          "out_point": {
            "tx_hash": "0x2c4e242e034e70a7b8ae5f899686c256dad2a816cc36ddfe2c1460cbbbbaaaed", 
            "index": "0x1"
          }, 
          "ownership": "ckt1qzda0cr08m85hc8jlnfp3zer7xulejywt49kt2rr0vthywaa50xwsq0e9jqckdkqk6gath2qraxjxcttuu76g8swvxcx3", 
          "io_type": "Output", 
          "amount": "0xd75828038f", 
          "occupied": "0x0", 
          "asset_info": {
            "asset_type": "CKB", 
            "udt_hash": "0x0000000000000000000000000000000000000000000000000000000000000000"
          }, 
          "extra": null, 
          "block_number": "0x296669", 
          "epoch_number": "0x7080462000b18"
        }
      ], 
      "fee": "0x1f5", 
      "burn": [ ], 
      "timestamp": "0x17bc67c4078"
    }
  }, 
  "id": 42
}

Method `get_mercury_info`

get_mercury_info()
result
- MercuryInfo

Usage

To get the information of Mercury.

Returns

MercuryInfo - The information of Mercury.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "get_mercury_info",
  "params": []
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "mercury_version": "0.4.4", 
    "ckb_node_version": "0.104.0 (4dd90d4 2022-07-19)", 
    "network_type": "Testnet", 
    "enabled_extensions": [ ]
  }, 
  "id": 42
}

Method `get_db_info`

get_db_info()
result
- DBInfo

Usage

To get the information of the database.

Returns

DBInfo - The information of the database.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "get_db_info",
  "params": []
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "version": "0.4.4", 
    "db": "PostgreSQL", 
    "conn_size": 100, 
    "center_id": 0, 
    "machine_id": 0
  }, 
  "id": 42
}

Method `build_sudt_issue_transaction`

build_sudt_issue_transaction(owner, from, to, output_capacity_provider, fee_rate, since)
- owner: string
- from: Array<JsonItem>
- to: Array<ToInfo>
- output_capacity_provider: "From"|"To"|null
- fee_rate: Uint64|null
- since: SinceConfig|null
result
- tx_view: TransactionView
- script_groups: Array<ScriptGroup>

Usage

To build a raw sUDT issuing transaction and script group for signing.

Params

owner - Specify the owner address for the sUDT cell.
from - Specify the providers for capacity and fee, which must contain owner item.
to - Specify recipient's address, amount etc.
output_capacity_provider - Specify the party that provides capacity.
- If it is "From", it means that the from will provides the capacity required for the transfer, and the addresses of to represents the corresponding lock.
- If it is "To", it means that the to will provides the capacity required for the transfer, and the addresses of to must correspond to locks with acp behavior.
- If it is null, same as "To", it means that from will not provide the required capacity, and the addresses of to must correspond to locks with acp behavior.
fee_rate - The unit for the fee is shannon or KB. The default fee rate is 1000. 1 CKB = 10⁸ shannons.
since - Specify the since configuration which prevents the transaction to be mined before a certain block timestamp or a block number.

Returns

tx_view - The raw transfer transaction.
script_groups - Script groups for signing.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "build_sudt_issue_transaction",
  "params": [{
    "owner": "ckt1qyq9vxdzkgsdve78hexvgnvl66364ss05y3qqa6lgk",
    "from": [
      {
        "type": "Address",
        "value": "ckt1qyq9vxdzkgsdve78hexvgnvl66364ss05y3qqa6lgk"
      }
    ],
    "to": [
      {
        "address": "ckt1qyqz86vx4klk6lxv62lsdxr5qlmksewp6s7q2l6x9t",
        "amount": "0x77359400"
      }
    ],
    "output_capacity_provider": "From",
    "fee_rate": null,
    "since": null
  }]
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
  "jsonrpc": "2.0", 
  "result": {
    "tx_view": {
      "version": "0x0", 
      "cell_deps": [
        {
          "out_point": {
            "tx_hash": "0x7f96858be0a9d584b4a9ea190e0420835156a6010a5fde15ffcdc9d9c721ccab", 
            "index": "0x0"
          }, 
          "dep_type": "dep_group"
        }, 
        {
          "out_point": {
            "tx_hash": "0xf8de3bb47d055cdf460d93a2a6e1b05f7432f9777c8c474abf4eec1d4aee5d37", 
            "index": "0x0"
          }, 
          "dep_type": "dep_group"
        }, 
        {
          "out_point": {
            "tx_hash": "0xe12877ebd2c3c364dc46c5c992bcfaf4fee33fa13eebdf82c591fc9825aab769", 
            "index": "0x0"
          }, 
          "dep_type": "code"
        }
      ], 
      "header_deps": [ ], 
      "inputs": [
        {
          "since": "0x0", 
          "previous_output": {
            "tx_hash": "0x405c5ac01aec4270caa9df45f33fd9cadbc7ff4d7cbc02e738c57593f0f1f600", 
            "index": "0x1"
          }
        }
      ], 
      "outputs": [
        {
          "capacity": "0x3c5986200", 
          "lock": {
            "code_hash": "0x60d5f39efce409c587cb9ea359cefdead650ca128f0bd9cb3855348f98c70d5b", 
            "hash_type": "type", 
            "args": "0x2627ee54fd091f5723590e16271f6309d755ca6f3ea6a19921331ac8a3f7ec6bcae80ef746884eb2"
          }, 
          "type": {
            "code_hash": "0xc5e5dcf215925f7ef4dfaf5f4b4f105bc321c02776d6e7d52a1db3fcd9d011a4", 
            "hash_type": "type", 
            "args": "0x3ea6a19921331ac8a3f7ec6bcae80ef746884eb2cbf7f8c87df721a6bc879758"
          }
        }, 
        {
          "capacity": "0x102299eb5d", 
          "lock": {
            "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
            "hash_type": "type", 
            "args": "0x5619a2b220d667c7be4cc44d9fd6a3aac20fa122"
          }, 
          "type": null
        }
      ], 
      "outputs_data": [
        "0x00943577000000000000000000000000", 
        "0x"
      ], 
      "witnesses": [
        "0x55000000100000005500000055000000410000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
      ], 
      "hash": "0x90539d2c1af6244b09e94efa42d9d6506c2ffa4931489104b6d14322df924bdb"
    }, 
    "script_groups": [
      {
        "script": {
          "code_hash": "0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8", 
          "hash_type": "type", 
          "args": "0x5619a2b220d667c7be4cc44d9fd6a3aac20fa122"
        }, 
        "group_type": "Lock", 
        "input_indices": [
          "0x0"
        ], 
        "output_indices": [ ]
      }, 
      {
        "script": {
          "code_hash": "0xc5e5dcf215925f7ef4dfaf5f4b4f105bc321c02776d6e7d52a1db3fcd9d011a4", 
          "hash_type": "type", 
          "args": "0x3ea6a19921331ac8a3f7ec6bcae80ef746884eb2cbf7f8c87df721a6bc879758"
        }, 
        "group_type": "Type", 
        "input_indices": [ ], 
        "output_indices": [
          "0x0"
        ]
      }
    ]
  }, 
  "id": 42
}

Method `get_sync_state`

get_sync_state()
result
- SyncState

Usage

To get the state of synchronization.

There are 4 states. Readonly means synchronization is closed (set by Mercury's configuration file). Except for Readonly, a complete synchronization is composed of the other three, and each stage is executed in sequence: ParallelFirstStage -> ParallelSecondStage -> Seria. And each stage has its own way of calculating progress.

When the synchronization state is the Serial and the completion percentage is close to 100.0%, the synchronization is considered complete.

Returns

SyncState - The state of synchronization.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "get_sync_state",
  "params": []
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
    "jsonrpc": "2.0",
    "result": {
        "type": "ParallelFirstStage",
        "value": {
            "current": "382225",
            "target": "446842",
            "progress": "85.5%"
        }
    },
    "id": 42
}

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "get_sync_state",
  "params": []
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- http://127.0.0.1:8116

Response

{
    "jsonrpc": "2.0",
    "result": {
        "type": "ReadOnly"
    },
    "id": 42
}

Method `start_profiler`

start_profiler()

Usage

Start profiler for generating flame graph.

Must set is_pprof_enabled to true in config.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "start_profiler",
  "params": []
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
    "jsonrpc": "2.0",
    "result": null,
    "id": 42
}

Method `report_pprof`

report_pprof()

Usage

Generate flame graph.

Must set is_pprof_enabled to true in config.

Examples

Request

echo '{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "report_pprof",
  "params": []
}' \
| tr -d '\n' \
| curl -H 'content-type: application/json' -d @- https://Mercury-testnet.ckbapp.dev/0.4

Response

{
    "jsonrpc": "2.0",
    "result": null,
    "id": 42
}

RPC Types

Type `JsonItem`

Fields

type (Type: "Identity"|"Address"|"OutPoint"): Specify the type of item.
value (Type: string | string | OutPoint ): Specify the value of item.

Type `AssetInfo`

Fields

asset_type (Type: "CKB" | "UDT"): Specify the asset type.
udt_hash (Type: string): Specify the hash of a UDT asset.

Type `Balance`

Fields

ownership (Type: string): An address which represents the ownership of the balance.
asset_info (Type: AssetInfo: Specify the asset type of the balance.
free (Type: Uint128): Specify the amount of freely spendable assets, which can be obtained by subtracting the occupied amount and the frozen amount from the total amount.
occupied (Type: Uint128): Specify the amount of CKB that provides capacity required for the cell storage itself. The exception to note is that a cell that can be fully consumed, such as a pure CKB cell (both cell data and type are empty), has an occupied amount of zero.
frozen (Type: Uint128): Specify the amount of locked assets. For cells whose data or type is not empty, its total amount minus the occupied amount is the frozen amount. The exception to note is that cells like sUDT/ACP cell, sUDT/SECP cell, and sUDT/PWLOCK cell, which can be used to collect excess CKB, have a frozen amount of zero.

Type `Range`

Fields

from (Type: Uint64): Specify the start block number of the range.
to (Type: Uint64): Specify the end block number of the range.

Type `PaginationRequest`

This is a cursor-based pagination configuration.

Fields

cursor (Type:Uint64 | null ): Specify the beginning cursor for the query.
- Start from the biggest cursor for descending order
- Start from the smallest cursor for ascending order
order (Type: "Asc" | "Desc"): Specify the order of the returning data.
limit (Type: Uint16 | null ): Specify the entry limit per page of the query.
return_count (Type: bool): Specify whether to return the total count.

Type `BlockInfo`

A double-entry style blockchain structure.

Fields

block_number (Type: Uint64): Specify the block number.
block_hash (Type: string): Specify the block hash.
parent_block_hash (Type: string): Specify the parent block hash.
timestamp (Type: Uint64): Specify the timestamp.
transactions (Type: Array<TransactionInfo>): Specify double-entry style transactions in the block.

Type `TxView`

Fields

type (Type: "TransactionInfo"|"TransactionWithRichStatus"): Specify the type of transaction view.
value (Type: TransactionInfo|TransactionWithRichStatus): Specify the value of transaction view.

Type `TransactionInfo`

A double-entry style transaction structure.

Fields

tx_hash (Type: string): Specify the transaction hash.
records (Type: Array<Record>): Specify the records in the transaction.
fee (Type: Uint64): Specify the fee for the transaction.
burn (Type: Array<BurnInfo>): Specify the amount of burned UDT assets in the transaction.
timestamp (Type: Uint64): Specify the timestamp of the block in which the transaction is packaged.

Type `TransactionWithRichStatus`

A native style transaction structure.

Fields

transaction (Type: TransactionView | null ): Specify the transaction.
tx_status (Type: TxRichStatus): Specify the transaction status.

Type `TxRichStatus`

Transaction rich status.

Fields

status (Type: Status): The transaction status, allowed values: "Pending", "Proposed" "Committed" "Unknown" and "Rejected".
block_hash (Type: H256 | null): Specify the block hash of the block which has committed this transaction in the canonical chain.
reason (Type: string | null): Specify the reason why the transaction is rejected.
timestamp (Type: Uint64 | null): Specify the timestamp of the block in which the transaction is packaged.

Type `Record`

A double-entry style structure that is designed to reflect the asset amount changes of an address in a transaction.

Fields

out_point (Type: OutPoint): Specify the transaction out point of the record.
ownership (Type: string): An address which represents the ownership of the record.
io_type (Type: "Input"|"Output"): Specify record io type.
- Input when the record is spent, and Output when the record is new.
amount (Type: Uint128): Specify the amount changes.
occupied (Type: Uint64): Specify the amount of CKB that provides capacity.
asset_info (Type: AssetInfo): Specify the asset type of the record.
extra (Type: ExtraFilter|null): Specify extra information of the record, if there is no extra information to be specified, it is null.
block_number (Type: BlockNumber): Block number.
epoch_number (Type: Uint64): Epoch value encoded.

Type `ExtraFilter`

Fields

type (Type: "Dao"|"Cellbase"|"Frozen"): Specify the type of extra filter.
- "Dao": indicates that the record is deposited in Nervos DAO or is withdrawing from Nervos DAO.
- "Cellbase": indicate that the record is a miner reward.
- "Frozen": indicates that the capacity of the record cannot be spent by Mercury(even if there is more than it is occupied). For example, a record stores the code of a script or the data it needs.
value (Type: DaoInfo|null) : Specify the value of extra filter, if the type field is "Dao", the value is a DaoInfo, if the type field is "Cellbase" or "Frozen", the value is null.

Type `DaoInfo`

Fields

state (Type: DaoState): Specify the state of a DAO operation.
reward (Type: Uint64): Specify the accumulate reward of a DAO operation.

Type `DaoState`

Fields

type (Type: "Deposit"|"Withdraw"): Specify the type of dao state.
value (Type: BlockNumber|Array<BlockNumber>) : Specify the block number of a dao state, when type is "Deposit", value is a block number, in case type is "Withdraw", value is size 2 array: [block number, block number].

Type `BurnInfo`

Fields

udt_hash (Type: string): Specify the type of burned assets.
amount (Type: Uint128): Specify the amount of burned asset.

Type `ScriptGroup`

A struct for signing on a raw transaction.

Fields

script (Type: Script): Describes the lock script and type script for a cell.
group_type (Type: "Lock"|"Type"): Group type.
input_indices (Type: Array<Uint32>): All input indices within this group.
output_indices (Type: Array<Uint32>): All output indices within this group.

Type `ToInfo`

Fields

address (Type: string): Specify the recipient's address.
amount (Type: Uint128): Specify the amount of the asset received by the recipient.

Type `SinceConfig`

The since rule is used to prevent a transaction to be mined before a certain block timestamp or a block number

Fields

flag (Type: "Relative"|"Absolute"): Specify the flag of since.
type_ (Type: "BlockNumber"|"EpochNumber"|"Timestamp"): Specify the type of since.
value (Type: Uint64 ): Specify the value of since.

Type `MercuryInfo`

Fields

mercury_version (Type: string): Specify the version of mercury.
ckb_node_version (Type: string): Specify the version of a CKB node.
network_type (Type: "Mainnet"|"Testnet"|"Staging"|"Dev"): Specify the network type.
enabled_extensions (Type: Array<Extension>): Specify the enabled extensions.

Type `Extension`

Fields

name (Type: string): Specify the extension name.
scripts (Type: Array<Script>): Specify scripts of the extension.
cell_deps (Type: Array<CellDep>): Specify the cell dependencies of the extension.

Type `DBInfo`

Fields

version (Type: string): Specify the version of database.
db (Type: "PostgreSQL"|"MySQL"|"SQLite"): Specify the version of the CKB node.
connection_size (Type: Uint32): Specify the connection size of the database.
center_id (Type: Int64): Specify the center ID of the database.
machine_id (Type: Int64): Specify the machine ID of the database.

Type `SyncState`

Fields

type (Type: "ReadOnly"|"ParallelFirstStage"|"ParallelSecondStage"|"Serial")
value (Type: SyncProgress)

Type `SyncProgress`

Fields

current(Type: string): current number synchronized at the current stage.
target(Type: string): target number at the current stage.
progress(Type: string): Percentage of progress calculated based on current and target.

Type `Uint16`

The 16-bit unsigned integer type encoded as the 0x-prefixed hex string in JSON.

Examples

JSON	Decimal Value
“0x0”	0
“0x10”	16
“10”	Invalid, 0x is required
“0x01”	Invalid, redundant leading 0

Type `Uint32`

The 32-bit unsigned integer type encoded as the 0x-prefixed hex string in JSON.

Examples

JSON	Decimal Value
“0x0”	0
“0x10”	16
“10”	Invalid, 0x is required
“0x01”	Invalid, redundant leading 0

Type `Uint64`

The 64-bit unsigned integer type encoded as the 0x-prefixed hex string in JSON.

Examples

JSON	Decimal Value
“0x0”	0
“0x10”	16
“10”	Invalid, 0x is required
“0x01”	Invalid, redundant leading 0

Type `Uint128`

The 128-bit unsigned integer type encoded as the 0x-prefixed hex string in JSON.

Examples

JSON	Decimal Value
“0x0”	0
“0x10”	16
“10”	Invalid, 0x is required
“0x01”	Invalid, redundant leading 0

Type `BlockNumber`

Consecutive block number starting from 0.

Files

README.md

Latest commit

History

README.md

File metadata and controls

Mercury JSON-RPC Protocols

Major Changes Compared to Version 0.1.0

Core Concept

Identity

Address

Balance Type

Double-entry Style Structure

Error Code

RPC Methods

Method get_balance

Method get_block_info

Method get_transaction_info

Method query_transactions

Method get_account_info

Method build_adjust_account_transaction

Method build_transfer_transaction

Method build_simple_transfer_transaction

Method register_addresses

Method build_dao_deposit_transaction

Method build_dao_withdraw_transaction

Method build_dao_claim_transaction

Method get_spent_transaction

Method get_mercury_info

Method get_db_info

Method build_sudt_issue_transaction

Method get_sync_state

Method start_profiler

Method report_pprof

RPC Types

Type JsonItem

Type AssetInfo

Type Balance

Type Range

Type PaginationRequest

Type BlockInfo

Type TxView

Type TransactionInfo

Type TransactionWithRichStatus

Type TxRichStatus

Type Record

Type ExtraFilter

Type DaoInfo

Type DaoState

Type BurnInfo

Type ScriptGroup

Type ToInfo

Type SinceConfig

Type MercuryInfo

Type Extension

Type DBInfo

Type SyncState

Type SyncProgress

Type Uint16

Examples

Type Uint32

Examples

Type Uint64

Examples

Type Uint128

Examples

Type BlockNumber

Method `get_balance`

Method `get_block_info`

Method `get_transaction_info`

Method `query_transactions`

Method `get_account_info`

Method `build_adjust_account_transaction`

Method `build_transfer_transaction`

Method `build_simple_transfer_transaction`

Method `register_addresses`

Method `build_dao_deposit_transaction`

Method `build_dao_withdraw_transaction`

Method `build_dao_claim_transaction`

Method `get_spent_transaction`

Method `get_mercury_info`

Method `get_db_info`

Method `build_sudt_issue_transaction`

Method `get_sync_state`

Method `start_profiler`

Method `report_pprof`

Type `JsonItem`

Type `AssetInfo`

Type `Balance`

Type `Range`

Type `PaginationRequest`

Type `BlockInfo`

Type `TxView`

Type `TransactionInfo`

Type `TransactionWithRichStatus`

Type `TxRichStatus`

Type `Record`

Type `ExtraFilter`

Type `DaoInfo`

Type `DaoState`

Type `BurnInfo`

Type `ScriptGroup`

Type `ToInfo`

Type `SinceConfig`

Type `MercuryInfo`

Type `Extension`

Type `DBInfo`

Type `SyncState`

Type `SyncProgress`

Type `Uint16`

Type `Uint32`

Type `Uint64`

Type `Uint128`

Type `BlockNumber`