Seele JSON-RPC

JSON is a lightweight data exchange format. It can represent numbers, strings, ordered value sequences and key-value pairs.

JSON-RPC is a stateless, lightweight Remote Procedure Call (RPC) protocol. It defines several data structures and the relevant rules to handle them. JSON-RPC is transmission-agnostic, because it can be used in situations like process, socket, HTTP, or different message transmission environments. It uses JSON(RFC 4627) as the data format.

Curl Examples Explained

The curl options below might return a response where the node complains about the content type, this is because the –data option sets the content type to application/x-www-form-urlencoded . If your node does complain, manually set the header by placing -H “Content-Type: application/json” at the start of the call.

JSON-RPC Support

Type Supported?
JSON-RPC 1.0 ✓
JSON-RPC 2.0 ✓
Batch Requests ✓
HTTP ✓
WS ✓

JSON-RPC Port

Default port:

Client Type Address
Go jsonrpc-2.0 http://localhost:8027
Go http http://localhost:8037
Go websocket http://localhost:8047

JSON-RPC List

Currently, there are several RPCs with different namespaces： - seele:node data manipulation and procurement / acquisition - txpool:transaction pool management - download:RPC collection provided for internal inquiry of blockchain node synchronization state. - network:connection management - miner:miner manipulation - debug:node debugging - monitor:node monitor

JSON-RPC Contents

Command Full Light public private
GetInfo ✓   ✓  
GetBalance ✓ ✓ ✓  
AddTx ✓ ✓ ✓  
GetAccountNonce ✓ ✓ ✓  
GetBlockHeight ✓ ✓ ✓  
GetBlock ✓ ✓ ✓  
GetBlockByHash ✓ ✓ ✓  
GetBlockByHeight ✓ ✓ ✓  
Call ✓   ✓  
GetLogs(Being Written) ✓   ✓  
GeneratePayload ✓   ✓  
EstimateGas ✓   ✓  
Command Full Light public private
GetBlockTransactionCount ✓ ✓ ✓  
GetBlockTransactionCountByHeight ✓ ✓ ✓  
GetBlockTransactionCountByHash ✓ ✓ ✓  
GetTransactionByBlockIndex ✓ ✓ ✓  
GetTransactionByBlockHeightAndIndex ✓ ✓ ✓  
GetTransactionByBlockHashAndIndex ✓ ✓ ✓  
GetReceiptByTxHash ✓ ✓ ✓  
GetTransactionByHash ✓ ✓ ✓  
GetDebtByHash ✓     ✓
Command Full Light public private
GetStatus ✓     ✓
Command Full Light public private
GetPeersInfo ✓ ✓   ✓
GetPeerCount ✓ ✓   ✓
GetNetVersion ✓ ✓   ✓
GetProtocolVersion ✓ ✓   ✓
GetNetworkID ✓ ✓   ✓
Command Full Light public private
Start ✓     ✓
Stop ✓     ✓
Status ✓     ✓
GetCoinbase ✓     ✓
SetThreads ✓     ✓
SetCoinbase ✓     ✓
GetThreads ✓   ✓  
GetHashrate ✓   ✓  
Command Full Light public private
PrintBlock ✓     ✓
GetTxPoolContent ✓ ✓   ✓
GetTxPoolTxCount ✓ ✓   ✓
GetPendingTxs ✓ ✓   ✓
GetPendingDebts ✓     ✓
DumpHeap ✓     ✓
GetTPS ✓     ✓
Command Full Light public private
NodeInfo ✓   ✓  
NodeStats ✓   ✓  

seele

RPC collection provided for public for blockchain node and transaction manipulation.

GetInfo

This method returns the node information.

Type Template
RPC {"jsonrpc":"2.0","method":"seele_getInfo","params":[],"id":2}
Parameters

none

Returns
  • Coinbase:string - node address
  • CurrentBlockHeight:uint64 - current block height
  • HeaderHash:string - block hash
  • MinerStatus:string - miner status
  • Shard:int - shard number
Example
// Request
curl  -X POST --data '{"jsonrpc":"2.0","method":"seele_getInfo","params":[],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "Coinbase": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21",
        "CurrentBlockHeight": 1722,
        "HeaderHash": "0x000001fa4cb11751fea2d4f7f9356303d44d2a02f37c3e62e657ffe29e5cb5fe",
        "Shard": 1,
        "MinerStatus": "Running"
    }
}

GetBalance

This method returns the account balance give the account address.

Type Template
RPC {"jsonrpc":"2.0","method":"seel e_getBalance","params":[string,st ring ,uint64],"id":1}
Parameters
  • Account:string - account
  • hexHash:string - hex form of a block hash, set to “” for the latest balance
  • height :uint64 - height of a block, set to -1 for the latest balance ##### Returns
  • Account:string - account
  • Balance:big.Int - account balance
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"seele_getBalance","params":["0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21","",-1],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "Account": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21",
        "Balance": 265499990000
    }
}

AddTx

This method submits a transaction to the node.

Type Template
RPC {"jsonrpc":"2.0","method":"seel e_addTx","params":[types.Transact ion],"id":1}
Parameters

  • tx:types.Transaction - transaction struct (client command sign could be used to get transaction hash and signature)

    • Hash:string - transaction hash
    • Data:json - transaction data
      • From:string - transaction sender
      • To:string - transaction receiver
      • Amount:uint64 - amount value, unit is fan
      • Fee:uint64 - transaction fee
      • Payload:string - transaction payload
      • AccountNonce:uint64 - transaction nonce
    • Signature : crypto.Signature - transaction signature struct
    type Signature struct {
    Sig []byte // [R || S || V] format signature in 65 bytes.
}
Returns
  • result:bool - transaction send result
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"seele_addTx","params":[{"Hash": "0x3393e5566cb905d714599f2f888ecc6d223b83403887460fa5b2771e89a0436e","Data": {"From": "0x3b691130ec4166bfc9ec7240217fc8d08903cf21","To":"0x2a87b6504cd00af95a83b9887112016a2a991cf1","Amount": 1,"AccountNonce":0,"Fee": 0,"GasPrice":10, "GasLimit":21000},"Signature":{"Sig":"fAvgVTXDyJZbfv07NYBK4aSolfY4ycBPQRwnQFpHRMc7ooOZw27U50o4TBoRelYX3QCRyvKpbxVlxhu7AnSB6QE="}}],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": true
}

GetAccountNonce

This method is used to obtain the account nonce.

Type Template
RPC {"jsonrpc":"2.0","method":"seel e_getAccountNonce","params":[stri ng,string ,uint64],"id":1}
Parameters
  • account:string - account
  • hexHash:string - hex form of a block hash, set to “” for the latest nonce
  • height :uint64 - height of a block, set to -1 for the latest nonce ##### Returns
  • result:uint64 - account nonce
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"seele_getAccountNonce","params":["0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21","",-1],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": 3
}

GetBlockHeight

This method is used to obtain the height of the blockchain.

Type Template
RPC {"jsonrpc":"2.0","method":"seel e_getBlockHeight","params":[strin g],"id":1}
Parameters

none

Returns
  • result:uint64 - block height
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"seele_getBlockHeight","params":[],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": 1928
}

GetBlock

This method is used to obtain the block content based on block height or block hash.

Type Template
RPC {"jsonrpc":"2.0","method":"seel e_getBlock","params":[string,stri ng,bool],"id":1}
Parameters
  • hash:string - block hash
  • height:string - block height
  • fulltx, f:bool - whether to include detailed transaction information
Returns
  • debts:array - debts in block
    • Hash:string - debts hash
    • Data:json - debts data
    • TxHash:string - txhash in debt
    • Shard:int - shard number of seele node where debts on
    • Account:array - debt account
    • Amount:int64 - debt amount
    • Fee:int64 - debt fee
    • Code:string - debt code
  • hash:string - block hash
  • header:json - block header
    • PreviousBlockHash:string - previous block hash
    • Creator:string - creator address
    • TxHash:string - tx hash
    • ReceiptHash:string - Receipts hash
    • stateHash:string - state tree hash
    • TxDebtHash:string - debts hash
    • DebtHash:string - debts hash
    • Difficulty:big.Int - block difficulty
    • Height:unit64 - block height
    • CreateTimestamp:uint64 - create timestamp
    • Witness:string - block nonce
    • Consensus:int - consensus algorithm
    • ExtraData:string - extra data
  • totalDifficulty:big.Int - total difficulty
  • transactions:array - transaction array
    • accountNonce:unit64 - account nonce
    • amount:Int - transaction amount
    • from:string - transaction provider
    • gasLimit:Int - transaction gas limit
    • gasPrice:Int - transaction gas price
    • hash:string - transaction hash
    • payload:array - transaction payload
    • to:string - transaction receiver
  • txDebts:array - transaction debts
    • Hash:string - txDebts hash
    • Data:json - txDebts data
      • TxHash:string - transaction hash
      • From:string - transaction sender
      • Nonce:unit64 - sender nonce
      • Account:string - transaction account
      • Amount:int - transaction amount
      • Price:int - transaction gas price
      • Code:string - transaction code
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"seele_getBlock","params":["",19018,true],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "debts": [],
        "hash": "0x000002f75910694bf33a9a2f3e0cab454ac4b14ff9d32aee7b59efc20260f00c",
        "header": {
            "PreviousBlockHash": "0x000005f39610211ad1e888940a0e6affb538ea2397f73e08f1f894537997118c",
            "Creator": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21",
            "StateHash": "0xde119fb11c8c74b34a71ce376589a1711af5acef99aaf36827fbaafaeb9fe617",
            "TxHash": "0xa5dea280e6e880af7547ffea5c54526b0a3fae9dcd977a0a5a00e14852eb08ce",
            "ReceiptHash": "0xd6efdf2db85d6a5ab3fdc14925f67b9c97fb7ebdb733e5b2bb5776c694bc9073",
            "TxDebtHash": "0x8fde2b990967a9e51cb5218acc3318faea7a50429760cef37867b12c62f30b78",
            "DebtHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
            "Difficulty": 2258387,
            "Height": 19018,
            "CreateTimestamp": 1548821456,
            "Witness": "MTI4ODU5Njk2MTcyODI5NzQ3MzM=",
            "Consensus": 0,
            "ExtraData": ""
        },
        "totalDifficulty": 52970343102,
        "transactions": [
            {
                "accountNonce": 0,
                "amount": 1200000000,
                "from": "0x0000000000000000000000000000000000000000",
                "gasLimit": 0,
                "gasPrice": 0,
                "hash": "0x0071c67a94f3619d9c7acb6fd40750956df24beb5dfaa5372e87a83bc06e219c",
                "payload": "",
                "to": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21"
            },
            {
                "accountNonce": 100,
                "amount": 88,
                "from": "0x3b691130ec4166bfc9ec7240217fc8d08903cf21",
                "gasLimit": 63000,
                "gasPrice": 10,
                "hash": "0xf7288fbc1ab3bea992dd5f311644f220b1accf8011f59df4778ca526843d1f68",
                "payload": "",
                "to": "0x007d1b1ea335e8e4a74c0be781d828dc7db934b1"
            }
        ],
        "txDebts": [
            {
                "Hash": "0xa0089462915e0a1b99ce3d75f6b51cdd5caf9a52691f327c9a27d222e0e38d57",
                "Data": {
                    "TxHash": "0xf7288fbc1ab3bea992dd5f311644f220b1accf8011f59df4778ca526843d1f68",
                    "From": "0x3b691130ec4166bfc9ec7240217fc8d08903cf21",
                    "Nonce": 100,
                    "Account": "0x007d1b1ea335e8e4a74c0be781d828dc7db934b1",
                    "Amount": 88,
                    "Price": 10,
                    "Code": ""
                }
            }
        ]
    }
}

GetBlockByHash

This method is used to obtain the block content based on block hash.

Type Template
RPC {"jsonrpc":"2.0","method":"seel e_getBlockByHash","params":[strin g,bool],"id":1}
Parameters
  • hash:string - block hash
  • fulltx, f:bool - whether to include detailed transaction information
Returns
  • debts:array - debts in block
    • Hash:string - debts hash
    • Data:json - debts data
    • TxHash:string - txhash in debt
    • Shard:int - shard number of seele node where debts on
    • Account:array - debt account
    • Amount:int64 - debt amount
    • Fee:int64 - debt fee
    • Code:string - debt code
  • hash:string - block hash
  • header:json - block header
    • PreviousBlockHash:string - previous block hash
    • Creator:string - creator address
    • TxHash:string - tx hash
    • ReceiptHash:string - Receipts hash
    • stateHash:string - state tree hash
    • TxDebtHash:string - debts hash
    • DebtHash:string - debts hash
    • Difficulty:big.Int - block difficulty
    • Height:unit64 - block height
    • CreateTimestamp:uint64 - create timestamp
    • Witness:string - block nonce
    • Consensus:int - consensus algorithm
    • ExtraData:string - extra data
  • totalDifficulty:big.Int - total difficulty
  • transactions:array - transaction array
    • accountNonce:unit64 - account nonce
    • amount:Int - transaction amount
    • from:string - transaction provider
    • gasLimit:Int - transaction gas limit
    • gasPrice:Int - transaction gas price
    • hash:string - transaction hash
    • payload:array - transaction payload
    • to:string - transaction receiver
  • txDebts:array - transaction debts
    • Hash:string - txDebts hash
    • Data:json - txDebts data
      • TxHash:string - transaction hash
      • From:string - transaction sender
      • Nonce:unit64 - sender nonce
      • Account:string - transaction account
      • Amount:int - transaction amount
      • Price:int - transaction gas price
      • Code:string - transaction code
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"seele_getBlockByHash","params":["0x000002f75910694bf33a9a2f3e0cab454ac4b14ff9d32aee7b59efc20260f00c",true],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "debts": [],
        "hash": "0x000002f75910694bf33a9a2f3e0cab454ac4b14ff9d32aee7b59efc20260f00c",
        "header": {
            "PreviousBlockHash": "0x000005f39610211ad1e888940a0e6affb538ea2397f73e08f1f894537997118c",
            "Creator": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21",
            "StateHash": "0xde119fb11c8c74b34a71ce376589a1711af5acef99aaf36827fbaafaeb9fe617",
            "TxHash": "0xa5dea280e6e880af7547ffea5c54526b0a3fae9dcd977a0a5a00e14852eb08ce",
            "ReceiptHash": "0xd6efdf2db85d6a5ab3fdc14925f67b9c97fb7ebdb733e5b2bb5776c694bc9073",
            "TxDebtHash": "0x8fde2b990967a9e51cb5218acc3318faea7a50429760cef37867b12c62f30b78",
            "DebtHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
            "Difficulty": 2258387,
            "Height": 19018,
            "CreateTimestamp": 1548821456,
            "Witness": "MTI4ODU5Njk2MTcyODI5NzQ3MzM=",
            "Consensus": 0,
            "ExtraData": ""
        },
        "totalDifficulty": 52970343102,
        "transactions": [
            {
                "accountNonce": 0,
                "amount": 1200000000,
                "from": "0x0000000000000000000000000000000000000000",
                "gasLimit": 0,
                "gasPrice": 0,
                "hash": "0x0071c67a94f3619d9c7acb6fd40750956df24beb5dfaa5372e87a83bc06e219c",
                "payload": "",
                "to": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21"
            },
            {
                "accountNonce": 100,
                "amount": 88,
                "from": "0x3b691130ec4166bfc9ec7240217fc8d08903cf21",
                "gasLimit": 63000,
                "gasPrice": 10,
                "hash": "0xf7288fbc1ab3bea992dd5f311644f220b1accf8011f59df4778ca526843d1f68",
                "payload": "",
                "to": "0x007d1b1ea335e8e4a74c0be781d828dc7db934b1"
            }
        ],
        "txDebts": [
            {
                "Hash": "0xa0089462915e0a1b99ce3d75f6b51cdd5caf9a52691f327c9a27d222e0e38d57",
                "Data": {
                    "TxHash": "0xf7288fbc1ab3bea992dd5f311644f220b1accf8011f59df4778ca526843d1f68",
                    "From": "0x3b691130ec4166bfc9ec7240217fc8d08903cf21",
                    "Nonce": 100,
                    "Account": "0x007d1b1ea335e8e4a74c0be781d828dc7db934b1",
                    "Amount": 88,
                    "Price": 10,
                    "Code": ""
                }
            }
        ]
    }
}

GetBlockByHeight

This method is used to obtain the block content based on block height.

Type Template
RPC {"jsonrpc":"2.0","method":"seel e_getBlockByHeight","params":[str ing,bool],"id":1}
Parameters
  • height:string - block height
  • fulltx, f:bool - whether to include detailed transaction information
Returns
  • debts:array - debts in block
    • Hash:string - debts hash
    • Data:json - debts data
    • TxHash:string - txhash in debt
    • Shard:int - shard number of seele node where debts on
    • Account:array - debt account
    • Amount:int64 - debt amount
    • Fee:int64 - debt fee
    • Code:string - debt code
  • hash:string - block hash
  • header:json - block header
    • PreviousBlockHash:string - previous block hash
    • Creator:string - creator address
    • TxHash:string - tx hash
    • ReceiptHash:string - Receipts hash
    • stateHash:string - state tree hash
    • TxDebtHash:string - debts hash
    • DebtHash:string - debts hash
    • Difficulty:big.Int - block difficulty
    • Height:unit64 - block height
    • CreateTimestamp:uint64 - create timestamp
    • Witness:string - block nonce
    • Consensus:int - consensus algorithm
    • ExtraData:string - extra data
  • totalDifficulty:big.Int - total difficulty
  • transactions:array - transaction array
    • accountNonce:unit64 - account nonce
    • amount:Int - transaction amount
    • from:string - transaction provider
    • gasLimit:Int - transaction gas limit
    • gasPrice:Int - transaction gas price
    • hash:string - transaction hash
    • payload:array - transaction payload
    • to:string - transaction receiver
  • txDebts:array - transaction debts
    • Hash:string - txDebts hash
    • Data:json - txDebts data
      • TxHash:string - transaction hash
      • From:string - transaction sender
      • Nonce:unit64 - sender nonce
      • Account:string - transaction account
      • Amount:int - transaction amount
      • Price:int - transaction gas price
      • Code:string - transaction code
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"seele_getBlockByHeight","params":[19018,true],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "debts": [],
        "hash": "0x000002f75910694bf33a9a2f3e0cab454ac4b14ff9d32aee7b59efc20260f00c",
        "header": {
            "PreviousBlockHash": "0x000005f39610211ad1e888940a0e6affb538ea2397f73e08f1f894537997118c",
            "Creator": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21",
            "StateHash": "0xde119fb11c8c74b34a71ce376589a1711af5acef99aaf36827fbaafaeb9fe617",
            "TxHash": "0xa5dea280e6e880af7547ffea5c54526b0a3fae9dcd977a0a5a00e14852eb08ce",
            "ReceiptHash": "0xd6efdf2db85d6a5ab3fdc14925f67b9c97fb7ebdb733e5b2bb5776c694bc9073",
            "TxDebtHash": "0x8fde2b990967a9e51cb5218acc3318faea7a50429760cef37867b12c62f30b78",
            "DebtHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
            "Difficulty": 2258387,
            "Height": 19018,
            "CreateTimestamp": 1548821456,
            "Witness": "MTI4ODU5Njk2MTcyODI5NzQ3MzM=",
            "Consensus": 0,
            "ExtraData": ""
        },
        "totalDifficulty": 52970343102,
        "transactions": [
            {
                "accountNonce": 0,
                "amount": 1200000000,
                "from": "0x0000000000000000000000000000000000000000",
                "gasLimit": 0,
                "gasPrice": 0,
                "hash": "0x0071c67a94f3619d9c7acb6fd40750956df24beb5dfaa5372e87a83bc06e219c",
                "payload": "",
                "to": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21"
            },
            {
                "accountNonce": 100,
                "amount": 88,
                "from": "0x3b691130ec4166bfc9ec7240217fc8d08903cf21",
                "gasLimit": 63000,
                "gasPrice": 10,
                "hash": "0xf7288fbc1ab3bea992dd5f311644f220b1accf8011f59df4778ca526843d1f68",
                "payload": "",
                "to": "0x007d1b1ea335e8e4a74c0be781d828dc7db934b1"
            }
        ],
        "txDebts": [
            {
                "Hash": "0xa0089462915e0a1b99ce3d75f6b51cdd5caf9a52691f327c9a27d222e0e38d57",
                "Data": {
                    "TxHash": "0xf7288fbc1ab3bea992dd5f311644f220b1accf8011f59df4778ca526843d1f68",
                    "From": "0x3b691130ec4166bfc9ec7240217fc8d08903cf21",
                    "Nonce": 100,
                    "Account": "0x007d1b1ea335e8e4a74c0be781d828dc7db934b1",
                    "Amount": 88,
                    "Price": 10,
                    "Code": ""
                }
            }
        ]
    }
}

Call

This method is used to execute a given transaction on a statedb of a given block height. It does not affect the statedb or blockchain and is useful for executing and retrieving values. However, the height currently does not support optional and will remove the from parameter in the next version or more.

Type Template
RPC {"jsonrpc":"2.0","method":"seel e_call ","params":[CallRequest]," id":1}
Parameters
  • to:string - to address
  • payload:string - transaction payload info
  • Height:int64 - block height (default: -1)
Returns
  • contract:string - contract address
  • failed:bool - contract executes successfully or not
  • poststate:string - state trie root hash after transaction execution
  • result:string - transaction result
  • totalFee:int64 - transaction fee
  • txhash:string - transaction hash
  • usedGas:int64 - transaction gas
Example

When using the example below, the contract must be deployed first. The solidity code file:

pragma solidity ^0.4.0;

contract SimpleStorage {
    uint storedData=23;

    function set(uint x) {
        storedData=x;
    }

    function get() constant returns(uint) {
        return storedData;
    }
}

As you can see, the example is testing the get function.

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"seele_call","params":["0x9df8ed11ea024183bd584480e80952c9b04e0122","0x6d4ce63c",-1],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "contract": "0x",
        "failed": false,
        "poststate": "0xb724c37fd2047d26c7e22da0f43d8c520aa15d9fc9358872583eb4a11b9c6787",
        "result": "0x0000000000000000000000000000000000000000000000000000000000000005",
        "totalFee": 101,
        "txhash": "0xefaa679d7b6bbbf2b56b198f45156a82a737a352cb1d42f2f5357ed3a4f91a16",
        "usedGas": 424
    }
}

GetLogs

This method gets the event logs by block height, the contract address, and the event name.

Type Template
RPC {"jsonrpc":"2.0","method":"seel e_getLogs ","params":[GetLogsRequ est],"id":1}
Parameters
  • height:int64 - block height (default: -1)
  • contract:string - contract code in hex
  • topic:string - topic
Returns

TODO

Example

When using the example below, the contract must be deployed first. The solidity code file:

pragma solidity ^0.4.0;

contract simple_storage_1 {
    uint storedData=23;

    event getLog(address addr, string message);
    event getLog1(string message);
    event getLog2(string message);

    function set(uint x) public{
        getLog1("set getLog1");
        getLog2("set getLog2");
        storedData=x;
    }

    function get() constant public returns(uint) {
        getLog(msg.sender, "get getLog");
        getLog1("get getLog1");
        set(16);
        return storedData;
    }
}

As you can see, this example is testing the get function. In this situation, the height is the block height of the block containing the get transaction.

// Request
TODO

// Result
TODO

GeneratePayload

This method generate the contract method payload.

Type Template
RPC {"jsonrpc":"2.0","method":"seel e_generatePayload","params":[stri ng, string, []string],"id":1}
Parameters
  • abiJSON:string - contract json string
  • methodName:string - contract method name
  • args:string - args of contract method
Returns
  • result:string payload of contract method with args
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"seele_generatePayload","params":["[{\"constant\":false,\"inputs\":[{\"name\":\"x\",\"type\":\"uint256\"}],\"name\":\"set\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"get\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"}]", "set", ["1"]],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": "0x60fe47b10000000000000000000000000000000000000000000000000000000000000001"
}

EstimateGas

This method Estimate the gas of a transaction.

Type Template
RPC {"jsonrpc":"2.0","method":"seel e_estimateGas","params":[types.Tr ansaction],"id":1}
Parameters
  • Hash:string - transaction hash
  • Data:json - transaction data
    • From:string - transaction sender
    • To:string - transaction receiver
    • Amount:uint64 - amount value, unit is fan
    • GasPrice:uint64 - transaction gas price in Fan
    • GasLimit:uint64 - maximum gas for transaction
    • Payload:string - transaction payload
    • AccountNonce:uint64 - transaction nonce
Returns
  • result:uint64 - gas amount
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"seele_estimateGas","params":[{"Hash": "0xd02530a4126ecea2787d59bf5e9611907c6043dd900f894554624bd1d25bcb32","Data": {"From": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21","To": "0x0ea2a45ab5a909c309439b0e004c61b7b2a3e831","Amount": 20000,"AccountNonce": 1,"GasPrice": 10,"GasLimit": 200000,"Payload": ""}}],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": 63000
}

txpool

RPC collection provided for internal use for transaction pool inquiry manipulation. ***

GetBlockTransactionCount

This method is used to obtain the number of transactions in the transaction pool based on block height or hash.

Type Template
RPC {"jsonrpc":"2.0","method":"txpo ol_getBlockTransactionCount","par ams":[string,int64],"id":1}
Parameters
  • hash:string - hash value in hex
  • height:int64 - block height (default: -1)
Returns
  • result:int - transactions count
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"txpool_getBlockTransactionCount","params":["0x0000015592fab87d6efa10e63d7722f6f359d90a1aff9e70930b291931c34922",-1],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": 2
}

GetBlockTransactionCountByHeight

This method is used to obtain the number of transactions in the transaction pool based on block height.

Type Template
RPC {"jsonrpc":"2.0","method":"txpo ol_getBlockTransactionCountByHeig ht","params":[int64],"id":1}
Parameters
  • height:int64 - block height (default: -1)
Returns
  • result:int - transactions count
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"txpool_getBlockTransactionCountByHeight","params":[-1],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": 2
}

GetBlockTransactionCountByHash

This method is used to obtain the number of transactions in the transaction pool based on block hash.

Type Template
RPC {"jsonrpc":"2.0","method":"txpo ol_getBlockTransactionCountByHash ","params":[string],"id":1}
Parameters
  • hash:string - hash value in hex
Returns
  • result:int - transactions count
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"txpool_getBlockTransactionCountByHash","params":["0x0000004c0336e63f76e7bd2b7888514eff47b3528df67ca6ee95edb9dff79c00"],"id":1}' localhost:8037
// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": 2
}

GetTransactionByBlockIndex

This method is used to obtain the transaction content based on block height or hash and transaction index.

Type Template
RPC {"jsonrpc":"2.0","method":"txpo ol_getTransactionByBlockIndex","p arams":[string,int,int],"id":1}
Parameters
  • hash:string - block hash
  • height:int - block height (default: -1)
  • index:int - transaction index, start with 0 (default: 0)
Returns
  • accountNonce:unit64 - account nonce
  • amount:Int - transaction amount
  • gasLimit:Int - transaction gas limit
  • gasPrice:Int - transaction gas price
  • from:string - transaction provider
  • to:string - transaction receiver
  • hash:string - transaction hash
  • payload:array - transaction payload
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"txpool_getTransactionByBlockIndex","params":["0x0000015592fab87d6efa10e63d7722f6f359d90a1aff9e70930b291931c34922", -1, 1],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "accountNonce": 0,
        "amount": 150000000,
        "from": "0x0000000000000000000000000000000000000000",
        "gasLimit": 0,
        "gasPrice": 0,
        "hash": "0x473ea3667d073491d5896a93fcf84d7dd822988d07482f21e7a875787539e62e",
        "payload": "",
        "to": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21"
    }
}

GetTransactionByBlockHeightAndIndex

This method is used to obtain the transaction content based on block height and transaction index.

Type Template
RPC ``{“jsonrpc”:”2.0”,”method”:”txpo ol_getTransactionByBlockHeightAnd Index”,”params”:[int,int],”id”:1} ``
Parameters
  • height:int - block height (default: -1)
  • index:int - transaction index, start with 0 (default: 0)
Returns
  • accountNonce:unit64 - account nonce
  • amount:Int - transaction amount
  • gasLimit:Int - transaction gas limit
  • gasPrice:Int - transaction gas price
  • from:string - transaction provider
  • to:string - transaction receiver
  • hash:string - transaction hash
  • payload:array - transaction payload
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"txpool_getTransactionByBlockHeightAndIndex","params":[4202, 1],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "accountNonce": 0,
        "amount": 150000000,
        "from": "0x0000000000000000000000000000000000000000",
        "gasLimit": 0,
        "gasPrice": 0,
        "hash": "0x473ea3667d073491d5896a93fcf84d7dd822988d07482f21e7a875787539e62e",
        "payload": "",
        "to": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21"
    }
}

GetTransactionByBlockHashAndIndex

This method is used to obtain the transaction content based on block hash and transaction index.

Type Template
RPC {"jsonrpc":"2.0","method":"txpo ol_getTransactionByBlockHashAndIn dex","params":[string,int],"id":1 }
Parameters
  • hash:string - block hash
  • index:int - transaction index, start with 0 (default: 0)
Returns
  • accountNonce:unit64 - account nonce
  • amount:Int - transaction amount
  • gasLimit:Int - transaction gas limit
  • gasPrice:Int - transaction gas price
  • from:string - transaction provider
  • to:string - transaction receiver
  • hash:string - transaction hash
  • payload:array - transaction payload
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"txpool_getTransactionByBlockHashAndIndex","params":["0x0000015592fab87d6efa10e63d7722f6f359d90a1aff9e70930b291931c34922", 1],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "accountNonce": 0,
        "amount": 150000000,
        "from": "0x0000000000000000000000000000000000000000",
        "gasLimit": 0,
        "gasPrice": 0,
        "hash": "0x473ea3667d073491d5896a93fcf84d7dd822988d07482f21e7a875787539e62e",
        "payload": "",
        "to": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21"
    }
}

GetTransactionByHash

This method returns transaction information by hash.

Type Template
RPC {"jsonrpc":"2.0","method":"txpo ol_getTransactionByHash","params" :[string],"id":1}
Parameters
  • hash:string - hash value in hex
Returns
  • blockHash:string - block hash
  • blockHeight:int - block height
  • status:string - transaction status
  • accountNonce:unit64 - account nonce
  • amount:Int - transaction amount
  • gasLimit:Int - transaction gas limit
  • gasPrice:Int - transaction gas price
  • from:string - transaction provider
  • to:string - transaction receiver
  • hash:string - transaction hash
  • payload:array - transaction payload
  • txIndex:int - transaction index in block
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"txpool_getTransactionByHash","params":["0xbd2ca4f9869c714e589ad6a3b16731c8cb066de40d0e27e220cc1e014577baff"],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "blockHash": "0x0000009c753570436b0bdd4ea1b9cfb1611f181f7aae82d4ba265761c50c8479",
        "blockHeight": 3608,
        "status": "block",
        "transaction": {
                "accountNonce": 0,
                "amount": 150000000,
                "from": "0x0000000000000000000000000000000000000000",
                "gasLimit": 0,
                "gasPrice": 0,
                "hash": "0x473ea3667d073491d5896a93fcf84d7dd822988d07482f21e7a875787539e62e",
                "payload": "",
                "to": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21"
        },
        "txIndex": 0
    }
}

GetReceiptByTxHash

This method is used to obtain the receipt contents based on transaction hash.

Type Template
RPC {"jsonrpc":"2.0","method":"txpo ol_getReceiptByTxHash","params":[ string,string],"id":1}
Parameters
  • hash:string - hash value in hex
  • abi:string - the abi file of contract
Returns
  • contract:string - contract address
  • failed:bool - transaction executes successfully or not
  • poststate:string - state trie root hash after transaction execution
  • result:string - transaction result
  • totalFee:int - transaction fee
  • txhash:string - transaction hash
  • usedGas:int - transaction gas
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"txpool_getReceiptByTxHash","params":["0xbd2ca4f9869c714e589ad6a3b16731c8cb066de40d0e27e220cc1e014577baff","""],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "contract": "0x",
        "failed": false,
        "poststate": "0xdd0b0fc6605bbb2e76b8c22ccd466ea5eaa1a80e4860fbdf971be58ded3d782b",
        "result": "0x",
        "totalFee": 1,
        "txhash": "0xbd2ca4f9869c714e589ad6a3b16731c8cb066de40d0e27e220cc1e014577baff",
        "usedGas": 0
    }
}

GetDebtByHash

This method is used to obtain the debt contents based on debt hash.

Type Template
RPC {"jsonrpc":"2.0","method":"txpo ol_getDebtByHash","params":[strin g],"id":1}
Parameters
  • hash:string - debt hash value in hex
Returns
  • blockHash:string - block hash of the debt on
  • blockHeight:int64 - block height of the debt on
  • debt:json - debt json
    • Hash:string - debt hash
    • Data:json - debt data
      • TxHash:string - txhash in debt
      • From:string - address of the sender
      • Nonce: uint64 - nonce of From address
      • Account:string - debt account
      • Amount:int64 - debt amount
      • Price:int64 - debt price
      • Code:string - debt contract code
  • debtIndex:int - debt index of the block debts
  • status:string - debt status
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"txpool_getDebtByHash","params":["0x0da1ed893e7f0ca2558c193b3b82ed20575a6978bea5b14f282309c69fee368e"],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "blockHash": "0x000001fb7817c8d9eeaa9bbed6670f8db62b605ad174f561e74afc60ac18c97b",
        "blockHeight": 170,
        "debt": {
            "Hash": "0xa0089462915e0a1b99ce3d75f6b51cdd5caf9a52691f327c9a27d222e0e38d57",
            "Data": {
                "TxHash": "0xf7288fbc1ab3bea992dd5f311644f220b1accf8011f59df4778ca526843d1f68",
                "From": "0x3b691130ec4166bfc9ec7240217fc8d08903cf21",
                "Nonce": 100,
                "Account": "0x007d1b1ea335e8e4a74c0be781d828dc7db934b1",
                "Amount": 88,
                "Price": 10,
                "Code": ""
            }
        },
        "debtIndex": 0,
        "status": "block"
    }
}

download

RPC collection provided for internal inquiry of blockchain node synchronization state.

GetStatus

This method returns synchronization information.

Type Template
RPC {"jsonrpc":"2.0","method":"download_getStatus","params":[],"id":2}
Parameters

none

Returns
  • Status:string - synchronization state
  • Duration:string - synchronization duration (seconds)
  • StartNum:uint64 - synchronization initial block height
  • Amount:uint64 - synchronization value
  • Downloaded:uint64 - Synchronization number of times
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"download_getStatus","params":[],"id":2}' localhost:8037

//Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": {
        "Status": "NotSyncing",
        "Duration": "",
        "StartNum": 0,
        "Amount": 0,
        "Downloaded": 0
    }
}

network

RPC collection provided for internal inquiry of network node information.

GetPeersInfo

This method returns the information of peer nodes.

Type Template
RPC {"jsonrpc":"2.0","method":"network_getPeersInfo","params":[],"id":2}
Parameters

none

Returns
  • id:string - node ID
  • caps:array - peer node protocol and version array
  • network:struct - network access address collection
    • localAddress:string - local address
    • remoteAddress:string - remote address
  • protocols:map - node collection, key is the node name
    • version:int - node protocal
    • difficulty:big.Int - node difficulty
    • head:string - current block hash of the node
  • shard:uint - shard id of the node ##### Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"network_getPeersInfo","params":[],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": [
        {
            "id": "0x0ea2a45ab5a909c309439b0e004c61b7b2a3e831",
            "caps": [
                "lightSeele_1/1",
                "lightSeele_2/1",
                "seele/1"
            ],
            "network": {
                "localAddress": "127.0.0.1:54652",
                "remoteAddress": "127.0.0.1:8058"
            },
            "protocols": {
                "lightSeele_1": {
                    "version": 1,
                    "difficulty": 54618694483,
                    "head": "0000040c0c7af9b83736210e0f177998e61d2ec8b314fd2d4f49b8a11c4a28b7"
                },
                "lightSeele_2": {
                    "version": 1,
                    "difficulty": 2395409154,
                    "head": "0000030e2940702b853faa83f01cf34d7324de11ad0e52b4f33851c41e41ecf0"
                },
                "seele": {
                    "version": 1,
                    "difficulty": 2395409154,
                    "head": "0000030e2940702b853faa83f01cf34d7324de11ad0e52b4f33851c41e41ecf0"
                }
            },
            "shard": 2
        }
    ]
}

GetPeerCount

This method returns the number of peer nodes.

Type Template
RPC {"jsonrpc":"2.0","method":"network_getPeerCount","params":[],"id":2}
Parameters

none

Returns
  • result:int - peer number of node
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"network_getPeerCount","params":[],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": 1
}

GetNetVersion

This method returns the network version.

Type Template
RPC {"jsonrpc":"2.0","method":"network_getNetVersion","params":[],"id":2}
Parameters

none

Returns
  • result:string - version number
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"network_getNetVersion","params":[],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": 1.0
}

GetProtocolVersion

This method returns the protocol version.

Type Template
RPC {"jsonrpc":"2.0","method":"netw ork_getProtocolVersion","params": [],"id":2}
Parameters

none

Returns
  • result:int - version number
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"network_getProtocolVersion","params":[],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": 1
}

GetNetworkID

This method returns the network id.

Type Template
RPC {"jsonrpc":"2.0","method":"network_getNetworkID","params":[],"id":2}
Parameters

none

Returns
  • result:string - network id
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"network_getNetworkID","params":[],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": "seele"
}

miner

RPC collection provided for internal inquiry of miner information. ***

Start

This method starts the miner with an input number of threads.

Type Template
RPC {"jsonrpc":"2.0","method":"miner_start","params":[int],"id":2}
Parameters
  • threads:int - number of threads
Returns
  • result:bool - start result
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"miner_start","params":[2],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": true
}

Stop

This method stops the miner.

Type Template
RPC {"jsonrpc":"2.0","method":"miner_stop","params":[],"id":2}
Parameters

none

Returns
  • result:bool - stop result
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"miner_stop","params":[],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": true
}

Status

This method returns the miner status.

Type Template
RPC {"jsonrpc":"2.0","method":"miner_status","params":[],"id":2}
Parameters

none

Returns
  • result:string - miner status
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"miner_status","params":[],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": "running"
}

GetCoinbase

This method is used to obtain the node coinbase.

Type Template
RPC {"jsonrpc":"2.0","method":"miner_getCoinbase","params":[],"id":2}
Parameters

none

Returns
  • result:string - coinbase
Example
curl -X POST --data '{"jsonrpc":"2.0","method":"miner.getCoinbase","params":[],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21"
}

SetThreads

This method is used to set the threads of miner consensus.

Type Template
RPC {"jsonrpc":"2.0","method":"miner_setThreads","params":[],"id":2}
Parameters
  • threads:int - miner threads
Returns
  • result:bool - SetThreads result
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"miner_setThreads","params":[4],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": true
}

SetCoinbase

This method is used to set the coinbase

Type Template
RPC {"jsonrpc":"2.0","method":"mine r_setCoinbase","params":["string" ],"id":2}
Parameters
  • coinbase:string coinbase of the miner
Returns
  • result:bool - SetCoinbase result
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"miner_setCoinbase","params":["0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21"],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": true
}

GetThreads

This method is used to get the threads of miner consensus.

Type Template
RPC {"jsonrpc":"2.0","method":"miner_getThreads","params":[],"id":2}
Parameters

none

Returns
  • result:int - miner threads
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"miner_getThreads","params":[],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": 2
}

GetHashrate

This method is used to get the current hashrate (Rate1).

Type Template
RPC {"jsonrpc":"2.0","method":"miner_getHashrate","params":[],"id":2}
Parameters

none

Returns
  • result:uint64 - hashrate
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"miner_getHashrate","params":[],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": 200064
}

debug

RPC collection provided for internal debugging. ***

PrintBlock

This method is used to print block information in dump format based on block height.

Type Template
RPC {"jsonrpc":"2.0","method":"debug_printBlock","params":[int64],"id":2}
Parameters
  • height:int64 - block height
Returns
  • HeaderHash:string - block header hash
  • Header:json - block header
    • PreviousBlockHash:string - previous block hash
    • Creator:string - block creator
    • StateHash:string - state hash
    • TxHash:string - transactions hash
    • ReceiptHash:string - receipts hash
    • TxDebtHash:string - transaction debts hash
    • DebtHash:string - debts hash
    • Difficulty:big.Int - block td
    • Height:uint64 - block height
    • CreateTimestamp:big.Int - create timestamp
    • Witness:string - block nonce
    • Consensus:int - 0 for POW consensus
    • ExtraData:string - extra data
  • Transactions:array - transactions on block
    • Hash:string - transaction hash
    • Data:string - transaction data
      • Type:int - transaction type, 0 for regular type, 1 for reward type
      • From:string - amount sender
      • To:string - amount receiver
      • Amount:int64 - transaction amount
      • AccountNonce:int64 - account nonce
      • GasPrice:int64 - transaction gas price
      • GasLimit:int64 - maximum gas for contract creation/execution
      • Timestamp:int64 - transaction timestamp
      • Payload:string - payload
      • Signature:json - transaction signature json
        • Sig:string - transaction sig
  • Debts:array - dump format of block information
    • Hash:string - debts hash
    • Data:json - debts data
      • TxHash:string - txhash in debt
      • From:string - sender address
      • Nonce:int64 - sender nonce
      • Account:string - debt account
      • Amount:int64 - debt amount
      • Price:int64 - debt gas price
      • Code:string - debt code
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"debug_printBlock","params":[10368],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "HeaderHash": "0x000001a8946d75258f9e269d516e797779ca6bd4b190c701f81456c60958c688",
        "Header": {
            "PreviousBlockHash": "0x000001f2ba4bc08c6a39fb35fa193698f35066c6ca14ca773b944eae25a6c360",
            "Creator": "0x0ea2a45ab5a909c309439b0e004c61b7b2a3e831",
            "StateHash": "0x875cd1618715a8414eb48f957b8a92b70699a9b3a94848d92da2fa278494ecc3",
            "TxHash": "0x390b401fa139861dcc7b7d78f18b043672a729b6d688b8cba38946b2b4114bb9",
            "ReceiptHash": "0x62db1441782a734fa65ee8f0678a8dd028fc813a11e4784ad24b596f5a071f01",
            "TxDebtHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
            "DebtHash": "0x5b240a1f3d6369489307fee52be9bc759312f873bde832bda975ee774ecacfaa",
            "Difficulty": 6348338,
            "Height": 1112,
            "CreateTimestamp": 1539147474,
            "Nonce": 16880251435180988161,
            "ExtraData": ""
        },
        "Transactions": [
            {
                "Hash": "0x8bb8afe4222ed759af503ab95417015321b4992c7913b440f1be47536929d3b4",
                "Data": {
                    "From": "0x0000000000000000000000000000000000000000",
                    "To": "0x0ea2a45ab5a909c309439b0e004c61b7b2a3e831",
                    "Amount": 150000000,
                    "AccountNonce": 0,
                    "Fee": 0,
                    "Timestamp": 1539147474,
                    "Payload": ""
                },
                "Signature": {
                    "Sig": ""
                }
            }
        ],
        "Debts": [
            {
                "Hash": "0x0da1ed893e7f0ca2558c193b3b82ed20575a6978bea5b14f282309c69fee368e",
                "Data": {
                    "TxHash": "0x58752f8aeb2c69dd2c32059d3ad8b2d3d860c6d92aa2b3b30ff985e564f60fae",
                    "Shard": 2,
                    "Account": "0x0ea2a45ab5a909c309439b0e004c61b7b2a3e831",
                    "Amount": 10000,
                    "Fee": 0,
                    "Code": ""
                }
            }
        ]
    }
}

GetTxPoolContent

This method is used to obtain the transaction pool content.

Type Template
RPC {"jsonrpc":"2.0","method":"debu g_getTxPoolContent","params":[]," id":2}
Parameters

none

Returns
  • accountNonce:unit64 - account nonce
  • amount:Int - transaction amount
  • from:string - transaction provider
  • to:string - transaction receiver
  • hash:string - transaction hash
  • payload:array - transaction payload
  • timestamp:string - transaction timestamp
  • fee:int - transaction fee
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"debug_getTxPoolContent","params":[],"id":2}' localhost:8037

// Result
{
    "jsonrpc":"2.0",
    "id":2,
    "result":{
        "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21": [
                {
                    "accountNonce": 4,
                    "amount": 10000,
                    "fee": 1,
                    "from": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21",
                    "hash": "0x1d9579c07e8cbcab36efdd810d2ebd27585c1b79eb379afde5e077c22ad46e44",
                    "payload": "",
                    "timestamp": 0,
                    "to": "0x16fba5fcb9bc4ee7c3b7fed667e41c9a0248da71"
                }
            ]
        ]
    }
}

GetTxPoolTxCount

This method is used to obtain the number of transactions in the transaction pool.

Type Template
RPC {"jsonrpc":"2.0","method":"debu g_getTxPoolTxCount","params":[]," id":2}
Parameters

none

Returns
  • result:uint64 - number of transactions
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"debug_getTxPoolTxCount","params":[],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": 1
}

GetPendingTxs

This method is used to obtain pending transactions in the transaction pool.

Type Template
RPC {"jsonrpc":"2.0","method":"debu g_getPendingTransactions","params ":[],"id":2}
Parameters

none

Returns
  • accountNonce:unit64 - account nonce
  • amount:Int - transaction amount
  • from:string - transaction provider
  • to:string - transaction receiver
  • hash:string - transaction hash
  • payload:array - transaction payload
  • timestamp:string - transaction timestamp
  • fee:int - transaction fee
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"debug_getPendingTransactions","params":[],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 2,
    "result": [
                {
                    "accountNonce": 6,
                    "amount": 10000,
                    "fee": 1,
                    "from": "0x4c10f2cd2159bb432094e3be7e17904c2b4aeb21",
                    "hash": "0x4ad5843af174d32e31b54ef81ddcbfeec43f4eb5d01885dfe9828f9ce907fb80",
                    "payload": "",
                    "timestamp": 0,
                    "to": "0x16fba5fcb9bc4ee7c3b7fed667e41c9a0248da71"
                }
              ]
}

GetPendingDebts

This method is used to obtain pending transactions in the transaction pool.

Type Template
RPC {"jsonrpc":"2.0","method":"debug_getPendingDebts","params":[],"id":2}
Parameters

none

Returns
  • Data:json - debt data
  • Account:array - debt account
  • Amount:int64 - debt amount
  • Code:string - debt code
  • Fee:int64 - debt fee
  • Shard:int - shard number of seele node where debts on
  • TxHash:string - txhash in debt
  • Hash:string - debts hash
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"debug_getPendingDebts","params":[],"id":2}' localhost:8037

// Result
[
        {
                "Data": {
                        "Account": "0x0ea2a45ab5a909c309439b0e004c61b7b2a3e831",
                        "Amount": 10000,
                        "Code": "",
                        "Fee": 0,
                        "Shard": 2,
                        "TxHash": "0x049305964eac1c62b19f0a6a0841b1d24683c4c4f9a3f23c69c87dcca9ec3e28"
                },
                "Hash": "0xdcf8489c27e934c3f289c4a1d843b86dbd3445e8943903613ce640d7fb043e87"
        }
]

DumpHeap

This method dump heap for profiling and returns the file path.

Type Template
RPC {"jsonrpc":"2.0","method":"debug_dumpHeap","params":[],"id":2}
Parameters

none

Returns
  • result:string file path
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"debug_dumpHeap","params":[],"id":2}' url

// Result
{
    "jsonrpc":"2.0",
    "id":2,
    "result":"C:\Users\dell-2\.seele\heap.dump"
}

GetTPS

This method returns TPS of seele node.

Type Template
RPC {"jsonrpc":"2.0","method":"debug_getTPS","params":[],"id":2}
Parameters

none

Returns
  • StartHeight:int64 start height
  • EndHeight:int64 end height
  • Count:int tps
  • Duration:int elapsed time from start height to end height
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"debug_dumpHeap","params":[],"id":2}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "StartHeight": 13929,
        "EndHeight": 13941,
        "Count": 0,
        "Duration": 166
    }
}

monitor

node monitor.

NodeInfo

This method returns the node information of the node

Type Template
RPC {"jsonrpc":"2.0","method":"monitor_nodeInfo","params":[],"id":1}
Parameters

none

Returns
  • name:string monitor name
  • node:string node name
  • port:int port
  • netVersion:string node network version
  • protocol:string node network protocol
  • api:string monitor api
  • os:string system os
  • os_v:string system os architecture
  • client:string client version
  • canUpdateHistory:bool can update history?
  • shard:int shard number
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"monitor_nodeInfo","params":[],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "name": "Test monitor",
        "node": "seele node1",
        "port": 0,
        "netVersion": "1.0",
        "protocol": "1.0",
        "api": "No",
        "os": "windows",
        "os_v": "amd64",
        "client": "1.0",
        "canUpdateHistory": true,
        "shard": 1
    }
}

NodeStats

This method returns the information of the node

Type Template
RPC {"jsonrpc":"2.0","method":"monitor_nodeStats","params":[],"id":1}
Parameters

none

Returns
  • active:string is node actively?
  • syncing:string is node syncing?
  • mining:int is node mining?
  • peers:string node peers number
Example
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"monitor_nodeStats","params":[],"id":1}' localhost:8037

// Result
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "active": true,
        "syncing": true,
        "mining": true,
        "peers": 0
    }
}