json-rpc NV <= 1.2.7

( node version <= v1.2.7 )

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 .

JSON-RPC Support

Type

Supported?

JSON-RPC 1.0

✓

JSON-RPC 2.0

✓

Batch Requests

✓

HTTP

✓

JSON-RPC Port

Default port:

Client

Type

Address

jsonrpc-2.0

http://localhost:8027

http

http://localhost:8037

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

seele

Command

Full

Light

public

private

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

txpool

Command

Full

Light

public

private

GetBlockTransactionCount

✓

GetBlockTransactionCountByHeight

✓

GetBlockTransactionCountByHash

✓

GetTransactionByBlockIndex

✓

GetTransactionByBlockHeightAndIndex

✓

GetTransactionByBlockHashAndIndex

✓

GetReceiptByTxHash

✓

GetTransactionByHash

✓

GetDebtByHash

✓

download

Command

Full

Light

public

private

GetStatus

✓

network

Command

Full

Light

public

private

✓

✓

✓

✓

✓

miner

Command

Full

Light

public

private

✓

✓

✓

✓

✓

✓

✓

✓

debug

Command

Full

Light

public

private

✓

✓

✓

✓

✓

✓

✓

monitor

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 -H "Content-Type: application/json" -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":"seele_getBalance","params":[string,string ,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 -H "Content-Type: application/json" -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":"seele_addTx","params":[types.Transaction],"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 -H "Content-Type: application/json" -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":"seele_getAccountNonce","params":[string,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 -H "Content-Type: application/json" -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":"seele_getBlockHeight","params":[string],"id":1}

Parameters

none

Returns

result:uint64 - block height

Example

Request

curl -H "Content-Type: application/json" -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":"seele_getBlock","params":[string,string,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 -H "Content-Type: application/json" -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":"seele_getBlockByHash","params":[string,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 -H "Content-Type: application/json" -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":"seele_getBlockByHeight","params":[string,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 -H "Content-Type: application/json" -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":"seele_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 -H "Content-Type: application/json" -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":"seele_getLogs ","params":[GetLogsRequest],"id":1}

Parameters

height:int64 - block height (default: -1)
contract:string - contract address
abi:string - contract abi
event:string - event name

Returns

address:string - contract address
topics:array - topic array
data:string - data
blocknumber:uint64 - block height
transactionNumber:uint - the index of the transaction in the block

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

curl -H "Content-Type: application/json" -X POST --data '{"jsonrpc":"2.0","method":"seele_getLogs","params":[1760936,"0x4df9ac0d329c07da15f202090649258c109a0022","[{\"constant\":false,\"inputs\":[{\"name\":\"x\",\"type\":\"uint256\"}],\"name\":\"set\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"addr\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"message\",\"type\":\"string\"}],\"name\":\"getLog\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"message\",\"type\":\"string\"}],\"name\":\"getLog1\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"message\",\"type\":\"string\"}],\"name\":\"getLog2\",\"type\":\"event\"},{\"constant\":true,\"inputs\":[],\"name\":\"get\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"}]","getLog2"],"id":1}' localhost:8037

Result

{"jsonrpc":"2.0","id":1,"result":[{"address":"0x4df9ac0d329c07da15f202090649258c109a0022","topics":["0xe84bb31d4e9adbff26e80edeecb6cf8f3a95d1ba519cf60a08a6e6f8d62d8100"],"data":"0x0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000b736574206765744c6f6732000000000000000000000000000000000000000000","blockNumber":1760936,"transactionIndex":1}]}

GeneratePayload

This method generate the contract method payload.

Type

Template

RPC

{"jsonrpc":"2.0","method":"seele_generatePayload","params":[string, 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 -H "Content-Type: application/json" -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":"seele_estimateGas","params":[types.Transaction],"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 -H "Content-Type: application/json" -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":"txpool_getBlockTransactionCount","params":[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 -H "Content-Type: application/json" -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":"txpool_getBlockTransactionCountByHeight","params":[int64],"id":1}

Parameters

height:int64 - block height (default: -1)

Returns

result:int - transactions count

Example

Request

curl -H "Content-Type: application/json" -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":"txpool_getBlockTransactionCountByHash","params":[string],"id":1}

Parameters

hash:string - hash value in hex

Returns

result:int - transactions count

Example

Request

curl -H "Content-Type: application/json" -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":"txpool_getTransactionByBlockIndex","params":[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 -H "Content-Type: application/json" -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":"txpool_getTransactionByBlockHeightAndIndex","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 -H "Content-Type: application/json" -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":"txpool_getTransactionByBlockHashAndIndex","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 -H "Content-Type: application/json" -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":"txpool_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 -H "Content-Type: application/json" -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":"txpool_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 -H "Content-Type: application/json" -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":"txpool_getDebtByHash","params":[string],"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 -H "Content-Type: application/json" -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