以太坊JSON RPC

作者: biwow | 来源:发表于2019-10-11 13:25 被阅读0次

Contents

Hash List
JSON-RPC support
HEX value encoding
The default block parameter
Curl Examples Explained
JSON-RPC methods

Hash List

	类型	长度	描述
blockHash	String	0x+64位	区块的哈希
blockNumber	Number		区块的块号
transactionHash	String	0x+64位	交易的哈希值
transactionIndex	Number		交易在区块里面的序号，整数
client addresses	String	0x+40位	账户地址
gas	Number		工作量单位
contractAddress	String	0x+40位	合约地址

JSON-RPC support

	cpp-ethereum	go-ethereum	py-ethereum	parity
JSON-RPC 1.0	✓
JSON-RPC 2.0	✓	✓	✓	✓
Batch requests	✓	✓	✓	✓
HTTP	✓	✓	✓	✓
IPC	✓	✓		✓
WS		✓		✓

HEX value encoding

At present there are two key datatypes that are passed over JSON: unformatted byte arrays and quantities. Both are passed with a hex encoding, however with different requirements to formatting:

When encoding QUANTITIES (integers, numbers): encode as hex, prefix with "0x", the most compact representation (slight exception: zero should be represented as "0x0"). Examples:

0x41 (65 in decimal)
0x400 (1024 in decimal)
WRONG: 0x (should always have at least one digit - zero is "0x0")
WRONG: 0x0400 (no leading zeroes allowed)
WRONG: ff (must be prefixed 0x)

When encoding UNFORMATTED DATA (byte arrays, account addresses, hashes, bytecode arrays): encode as hex, prefix with "0x", two hex digits per byte. Examples:

0x41 (size 1, "A")
0x004200 (size 3, "\0B\0")
0x (size 0, "")
WRONG: 0xf0f0f (must be even number of digits)
WRONG: 004200 (must be prefixed 0x)

Currently cpp-ethereum,go-ethereum, and parity provide JSON-RPC communication over http and IPC (unix socket Linux and OSX/named pipes on Windows). Version 1.4 of go-ethereum and version 1.6 of Parity onwards have websocket support.

The default block parameter

The following methods have an extra default block parameter:

eth_getBalance
eth_getCode
eth_getTransactionCount
eth_getStorageAt
eth_call

When requests are made that act on the state of ethereum, the last default block parameter determines the height of the block.

The following options are possible for the defaultBlock parameter:

HEX String - an integer block number
String "earliest" for the earliest/genesis block
String "latest" - for the latest mined block
String "pending" - for the pending state/transactions

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.

The examples also do not include the URL/IP & port combination which must be the last argument given to curl e.x. 127.0.0.1:8545

JSON-RPC methods

web3_clientVersion 当前客户端版本
web3_sha3 给定字符串的sha3结果
net_version 当前的网络ID
net_peerCount 客户端数量
net_listening 客户端连接状态
eth_protocolVersion 当前EUTHUM协议版本
eth_syncing 当前同步情况
eth_coinbase 客户端钱包的地址
eth_mining 挖矿状态
eth_hashrate 每秒节点挖掘数量
eth_gasPrice 当前gas价格
eth_accounts 客户拥有的地址列表
eth_blockNumber 客户端当前区块号
eth_getBalance 当前余额
eth_getStorageAt 存储位置的值
eth_getTransactionCount 账户地址的交易数量
eth_getBlockTransactionCountByHash 区块哈希值的交易数量
eth_getBlockTransactionCountByNumber 区块号的交易数量
eth_getUncleCountByBlockHash 通过区块哈希值获取叔块
eth_getUncleCountByBlockNumber 通过区块号获取叔块
eth_getCode 获取链上指定地址的代码
eth_sign 账户数据加签
eth_sendTransaction 发送一个交易到合约
eth_sendRawTransaction 发送加签的交易
eth_call
eth_estimateGas 合约部署所花费的gas
eth_getBlockByHash 区块哈希值所对应的区块
eth_getBlockByNumber 区块号所对应的区块
eth_getTransactionByHash 交易哈希值查交易信息
eth_getTransactionByBlockHashAndIndex 区块哈希值的指定序号的交易
eth_getTransactionByBlockNumberAndIndex 区块号的指定序号的交易
eth_getTransactionReceipt 智能合约记录查询
eth_getUncleByBlockHashAndIndex 区块哈希值返回叔块
eth_getUncleByBlockNumberAndIndex 区块号返回叔块
eth_getCompilers 可用合约编译器
eth_compileLLL 编译LLL源代码
eth_compileSolidity 编译智能合约
eth_compileSerpent 编译serpent源代码
eth_newFilter 创建一个filter对象监听区块或交易的变化
eth_newBlockFilter 创建一个filter监听新区块的创建
eth_newPendingTransactionFilter 创建一个filter监听发起一个交易
eth_uninstallFilter 取消指定filter
eth_getFilterChanges 获取filter的变化日志
eth_getFilterLogs 获取指定filter日志
eth_getLogs 返回所有日志
eth_getWork 挖矿应用程序
eth_submitWork 守护进程通信
eth_submitHashrate 提交挖矿率哈希值
db_putString 写入字符串到数据库
db_getString 在数据库读取字符串
db_putHex 写入十六进制到数据库
db_getHex 在数据库读取十六进制
shh_post
shh_version
shh_newIdentity
shh_hasIdentity
shh_newGroup
shh_addToGroup
shh_newFilter
shh_uninstallFilter
shh_getFilterChanges
shh_getMessages

JSON RPC API Reference

web3_clientVersion

Returns the current client version.

Parameters

none

Returns

String - The current client version

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"web3_clientVersion","params":[],"id":67}'

// Result
{
  "id":67,
  "jsonrpc":"2.0",
  "result": "Mist/v0.9.3/darwin/go1.4.1"
}

web3_sha3

Returns Keccak-256 (not the standardized SHA3-256) of the given data.

Parameters

DATA - the data to convert into a SHA3 hash

params: [
  "0x68656c6c6f20776f726c64"
]

Returns

DATA - The SHA3 result of the given string.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"web3_sha3","params":["0x68656c6c6f20776f726c64"],"id":64}'

// Result
{
  "id":64,
  "jsonrpc": "2.0",
  "result": "0x47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad"
}

net_version

Returns the current network id.

Parameters

none

Returns

String - The current network id.

"1": Ethereum Mainnet
"2": Morden Testnet (deprecated)
"3": Ropsten Testnet
"4": Rinkeby Testnet
"42": Kovan Testnet

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"net_version","params":[],"id":67}'

// Result
{
  "id":67,
  "jsonrpc": "2.0",
  "result": "3"
}

startingBlock: QUANTITY - The block at which the import started (will only be reset, after the sync reached his head)
currentBlock: QUANTITY - The current block, same as eth_blockNumber
highestBlock: QUANTITY - The estimated highest block

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": {
    startingBlock: '0x384',
    currentBlock: '0x386',
    highestBlock: '0x454'
  }
}
// Or when not syncing
{
  "id":1,
  "jsonrpc": "2.0",
  "result": false
}

eth_coinbase

Returns the client coinbase address.

Parameters

none

Returns

DATA, 20 bytes - the current coinbase address.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_coinbase","params":[],"id":64}'

// Result
{
  "id":64,
  "jsonrpc": "2.0",
  "result": "0x407d73d8a49eeb85d32cf465507dd71d507100c1"
}

eth_mining

Returns true if client is actively mining new blocks.

Parameters

none

Returns

Boolean - returns true of the client is mining, otherwise false.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_mining","params":[],"id":71}'

// Result
{
  "id":71,
  "jsonrpc": "2.0",
  "result": true
}

eth_hashrate

Returns the number of hashes per second that the node is mining with.

Parameters

none

Returns

QUANTITY - number of hashes per second.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_hashrate","params":[],"id":71}'

// Result
{
  "id":71,
  "jsonrpc": "2.0",
  "result": "0x38a"
}

eth_gasPrice

Returns the current price per gas in wei.

Parameters

none

Returns

QUANTITY - integer of the current gas price in wei.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_gasPrice","params":[],"id":73}'

// Result
{
  "id":73,
  "jsonrpc": "2.0",
  "result": "0x09184e72a000" // 10000000000000
}

eth_accounts

Returns a list of addresses owned by client.

Parameters

none

Returns

Array of DATA, 20 Bytes - addresses owned by the client.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_accounts","params":[],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": ["0x407d73d8a49eeb85d32cf465507dd71d507100c1"]
}

eth_blockNumber

Returns the number of most recent block.

Parameters

none

Returns

QUANTITY - integer of the current block number the client is on.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":83}'

// Result
{
  "id":83,
  "jsonrpc": "2.0",
  "result": "0x4b7" // 1207
}

eth_getBalance

Returns the balance of the account of given address.

Parameters

DATA, 20 Bytes - address to check for balance.
QUANTITY|TAG - integer block number, or the string "latest", "earliest" or "pending", see the default block parameter

params: [
   '0x407d73d8a49eeb85d32cf465507dd71d507100c1',
   'latest'
]

Returns

QUANTITY - integer of the current balance in wei.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBalance","params":["0x407d73d8a49eeb85d32cf465507dd71d507100c1", "latest"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x0234c8a3397aab58" // 158972490234375000
}

eth_getStorageAt

Returns the value from a storage position at a given address.

Parameters

DATA, 20 Bytes - address of the storage.
QUANTITY - integer of the position in the storage.
QUANTITY|TAG - integer block number, or the string "latest", "earliest" or "pending", see the default block parameter

Returns

DATA - the value at this storage position.

Example

Calculating the correct position depends on the storage to retrieve. Consider the following contract deployed at 0x295a70b2de5e3953354a6a8344e616ed314d7251 by address 0x391694e7e0b0cce554cb130d723a9d27458f9298.

contract Storage {
    uint pos0;
    mapping(address => uint) pos1;
    
    function Storage() {
        pos0 = 1234;
        pos1[msg.sender] = 5678;
    }
}

Retrieving the value of pos0 is straight forward:

curl -X POST --data '{"jsonrpc":"2.0", "method": "eth_getStorageAt", "params": ["0x295a70b2de5e3953354a6a8344e616ed314d7251", "0x0", "latest"], "id": 1}' localhost:8545

{"jsonrpc":"2.0","id":1,"result":"0x00000000000000000000000000000000000000000000000000000000000004d2"}

Retrieving an element of the map is harder. The position of an element in the map is calculated with:

keccack(LeftPad32(key, 0), LeftPad32(map position, 0))

This means to retrieve the storage on pos1["0x391694e7e0b0cce554cb130d723a9d27458f9298"] we need to calculate the position with:

keccak(decodeHex("000000000000000000000000391694e7e0b0cce554cb130d723a9d27458f9298" + "0000000000000000000000000000000000000000000000000000000000000001"))

The geth console which comes with the web3 library can be used to make the calculation:

> var key = "000000000000000000000000391694e7e0b0cce554cb130d723a9d27458f9298" + "0000000000000000000000000000000000000000000000000000000000000001"
undefined
> web3.sha3(key, {"encoding": "hex"})
"0x6661e9d6d8b923d5bbaab1b96e1dd51ff6ea2a93520fdc9eb75d059238b8c5e9"

Now to fetch the storage:

curl -X POST --data '{"jsonrpc":"2.0", "method": "eth_getStorageAt", "params": ["0x295a70b2de5e3953354a6a8344e616ed314d7251", "0x6661e9d6d8b923d5bbaab1b96e1dd51ff6ea2a93520fdc9eb75d059238b8c5e9", "latest"], "id": 1}' localhost:8545

{"jsonrpc":"2.0","id":1,"result":"0x000000000000000000000000000000000000000000000000000000000000162e"}

eth_getTransactionCount

Returns the number of transactions sent from an address.

Parameters

DATA, 20 Bytes - address.
QUANTITY|TAG - integer block number, or the string "latest", "earliest" or "pending", see the default block parameter

params: [
   '0x407d73d8a49eeb85d32cf465507dd71d507100c1',
   'latest' // state at the latest block
]

Returns

QUANTITY - integer of the number of transactions send from this address.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionCount","params":["0x407d73d8a49eeb85d32cf465507dd71d507100c1","latest"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x1" // 1
}

eth_getBlockTransactionCountByHash

Returns the number of transactions in a block from a block matching the given block hash.

Parameters

DATA, 32 Bytes - hash of a block

params: [
   '0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238'
]

Returns

QUANTITY - integer of the number of transactions in this block.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockTransactionCountByHash","params":["0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0xb" // 11
}

eth_getBlockTransactionCountByNumber

Returns the number of transactions in a block matching the given block number.

Parameters

QUANTITY|TAG - integer of a block number, or the string "earliest", "latest" or "pending", as in the default block parameter.

params: [
   '0xe8', // 232
]

Returns

QUANTITY - integer of the number of transactions in this block.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockTransactionCountByNumber","params":["0xe8"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0xa" // 10
}

eth_getUncleCountByBlockHash

Returns the number of uncles in a block from a block matching the given block hash.

Parameters

DATA, 32 Bytes - hash of a block

params: [
   '0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238'
]

Returns

QUANTITY - integer of the number of uncles in this block.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getUncleCountByBlockHash","params":["0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x1" // 1
}

eth_getUncleCountByBlockNumber

Returns the number of uncles in a block from a block matching the given block number.

Parameters

QUANTITY|TAG - integer of a block number, or the string "latest", "earliest" or "pending", see the default block parameter

params: [
   '0xe8', // 232
]

Returns

QUANTITY - integer of the number of uncles in this block.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getUncleCountByBlockNumber","params":["0xe8"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x1" // 1
}

eth_getCode

Returns code at a given address.

Parameters

DATA, 20 Bytes - address
QUANTITY|TAG - integer block number, or the string "latest", "earliest" or "pending", see the default block parameter

params: [
   '0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b',
   '0x2'  // 2
]

Returns

DATA - the code from the given address.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getCode","params":["0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b", "0x2"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x600160008035811a818181146012578301005b601b6001356025565b8060005260206000f25b600060078202905091905056"
}

eth_sign

The sign method calculates an Ethereum specific signature with: sign(keccak256("\x19Ethereum Signed Message:\n" + len(message) + message))).

By adding a prefix to the message makes the calculated signature recognisable as an Ethereum specific signature. This prevents misuse where a malicious DApp can sign arbitrary data (e.g. transaction) and use the signature to impersonate the victim.

Note the address to sign with must be unlocked.

Parameters

account, message

DATA, 20 Bytes - address
DATA, N Bytes - message to sign

Returns

DATA: Signature

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_sign","params":["0x9b2055d370f73ec7d8a03e965129118dc8f5bf83", "0xdeadbeaf"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0xa3f20717a250c2b0b729b7e5becbff67fdaef7e0699da4de7ca5895b02a170a12d887fd3b17bfdce3481f10bea41f45ba9f709d39ce8325427b57afcfc994cee1b"
}

An example how to use solidity ecrecover to verify the signature calculated with eth_sign can be found here. The contract is deployed on the testnet Ropsten and Rinkeby.

eth_sendTransaction

Creates new message call transaction or a contract creation, if the data field contains code.

Parameters

Object - The transaction object

from: DATA, 20 Bytes - The address the transaction is send from.
to: DATA, 20 Bytes - (optional when creating new contract) The address the transaction is directed to.
gas: QUANTITY - (optional, default: 90000) Integer of the gas provided for the transaction execution. It will return unused gas.
gasPrice: QUANTITY - (optional, default: To-Be-Determined) Integer of the gasPrice used for each paid gas
value: QUANTITY - (optional) Integer of the value sent with this transaction
data: DATA - The compiled code of a contract OR the hash of the invoked method signature and encoded parameters. For details see Ethereum Contract ABI
nonce: QUANTITY - (optional) Integer of a nonce. This allows to overwrite your own pending transactions that use the same nonce.

params: [{
  "from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155",
  "to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
  "gas": "0x76c0", // 30400
  "gasPrice": "0x9184e72a000", // 10000000000000
  "value": "0x9184e72a", // 2441406250
  "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
}]

Returns

DATA, 32 Bytes - the transaction hash, or the zero hash if the transaction is not yet available.

Use eth_getTransactionReceipt to get the contract address, after the transaction was mined, when you created a contract.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_sendTransaction","params":[{see above}],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331"
}

eth_sendRawTransaction

Creates new message call transaction or a contract creation for signed transactions.

Parameters

DATA, The signed transaction data.

params: ["0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"]

Returns

DATA, 32 Bytes - the transaction hash, or the zero hash if the transaction is not yet available.

Use eth_getTransactionReceipt to get the contract address, after the transaction was mined, when you created a contract.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_sendRawTransaction","params":[{see above}],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331"
}

eth_call

Executes a new message call immediately without creating a transaction on the block chain.

Parameters

Object - The transaction call object

from: DATA, 20 Bytes - (optional) The address the transaction is sent from.
to: DATA, 20 Bytes - The address the transaction is directed to.
gas: QUANTITY - (optional) Integer of the gas provided for the transaction execution. eth_call consumes zero gas, but this parameter may be needed by some executions.
gasPrice: QUANTITY - (optional) Integer of the gasPrice used for each paid gas
value: QUANTITY - (optional) Integer of the value sent with this transaction
data: DATA - (optional) Hash of the method signature and encoded parameters. For details see Ethereum Contract ABI

QUANTITY|TAG - integer block number, or the string "latest", "earliest" or "pending", see the default block parameter

Returns

DATA - the return value of executed contract.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_call","params":[{see above}],"id":1}'

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

eth_estimateGas

Generates and returns an estimate of how much gas is necessary to allow the transaction to complete. The transaction will not be added to the blockchain. Note that the estimate may be significantly more than the amount of gas actually used by the transaction, for a variety of reasons including EVM mechanics and node performance.

Parameters

See eth_call parameters, expect that all properties are optional. If no gas limit is specified geth uses the block gas limit from the pending block as an upper bound. As a result the returned estimate might not be enough to executed the call/transaction when the amount of gas is higher than the pending block gas limit.

Returns

QUANTITY - the amount of gas used.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_estimateGas","params":[{see above}],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x5208" // 21000
}

eth_getBlockByHash

Returns information about a block by hash.

Parameters

DATA, 32 Bytes - Hash of a block.
Boolean - If true it returns the full transaction objects, if false only the hashes of the transactions.

params: [
   '0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331',
   true
]

Returns

Object - A block object, or null when no block was found:

number: QUANTITY - the block number. null when its pending block.
hash: DATA, 32 Bytes - hash of the block. null when its pending block.
parentHash: DATA, 32 Bytes - hash of the parent block.
nonce: DATA, 8 Bytes - hash of the generated proof-of-work. null when its pending block.
sha3Uncles: DATA, 32 Bytes - SHA3 of the uncles data in the block.
logsBloom: DATA, 256 Bytes - the bloom filter for the logs of the block. null when its pending block.
transactionsRoot: DATA, 32 Bytes - the root of the transaction trie of the block.
stateRoot: DATA, 32 Bytes - the root of the final state trie of the block.
receiptsRoot: DATA, 32 Bytes - the root of the receipts trie of the block.
miner: DATA, 20 Bytes - the address of the beneficiary to whom the mining rewards were given.
difficulty: QUANTITY - integer of the difficulty for this block.
totalDifficulty: QUANTITY - integer of the total difficulty of the chain until this block.
extraData: DATA - the "extra data" field of this block.
size: QUANTITY - integer the size of this block in bytes.
gasLimit: QUANTITY - the maximum gas allowed in this block.
gasUsed: QUANTITY - the total used gas by all transactions in this block.
timestamp: QUANTITY - the unix timestamp for when the block was collated.
transactions: Array - Array of transaction objects, or 32 Bytes transaction hashes depending on the last given parameter.
uncles: Array - Array of uncle hashes.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockByHash","params":["0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331", true],"id":1}'

// Result
{
"id":1,
"jsonrpc":"2.0",
"result": {
    "number": "0x1b4", // 436
    "hash": "0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331",
    "parentHash": "0x9646252be9520f6e71339a8df9c55e4d7619deeb018d2a3f2d21fc165dde5eb5",
    "nonce": "0xe04d296d2460cfb8472af2c5fd05b5a214109c25688d3704aed5484f9a7792f2",
    "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
    "logsBloom": "0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331",
    "transactionsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
    "stateRoot": "0xd5855eb08b3387c0af375e9cdb6acfc05eb8f519e419b874b6ff2ffda7ed1dff",
    "miner": "0x4e65fda2159562a496f9f3522f89122a3088497a",
    "difficulty": "0x027f07", // 163591
    "totalDifficulty":  "0x027f07", // 163591
    "extraData": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "size":  "0x027f07", // 163591
    "gasLimit": "0x9f759", // 653145
    "gasUsed": "0x9f759", // 653145
    "timestamp": "0x54e34e8e" // 1424182926
    "transactions": [{...},{ ... }] 
    "uncles": ["0x1606e5...", "0xd5145a9..."]
  }
}

eth_getBlockByNumber

Returns information about a block by block number.

Parameters

QUANTITY|TAG - integer of a block number, or the string "earliest", "latest" or "pending", as in the default block parameter.
Boolean - If true it returns the full transaction objects, if false only the hashes of the transactions.

params: [
   '0x1b4', // 436
   true
]

Returns

See eth_getBlockByHash

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["0x1b4", true],"id":1}'

Result see eth_getBlockByHash

eth_getTransactionByHash

Returns the information about a transaction requested by transaction hash.

Parameters

DATA, 32 Bytes - hash of a transaction

params: [
   "0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"
]

Returns

Object - A transaction object, or null when no transaction was found:

hash: DATA, 32 Bytes - hash of the transaction.
nonce: QUANTITY - the number of transactions made by the sender prior to this one.
blockHash: DATA, 32 Bytes - hash of the block where this transaction was in. null when its pending.
blockNumber: QUANTITY - block number where this transaction was in. null when its pending.
transactionIndex: QUANTITY - integer of the transactions index position in the block. null when its pending.
from: DATA, 20 Bytes - address of the sender.
to: DATA, 20 Bytes - address of the receiver. null when its a contract creation transaction.
value: QUANTITY - value transferred in Wei.
gasPrice: QUANTITY - gas price provided by the sender in Wei.
gas: QUANTITY - gas provided by the sender.
input: DATA - the data send along with the transaction.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionByHash","params":["0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"],"id":1}'

// Result
{
"id":1,
"jsonrpc":"2.0",
"result": {
    "hash":"0xc6ef2fc5426d6ad6fd9e2a26abeab0aa2411b7ab17f30a99d3cb96aed1d1055b",
    "nonce":"0x",
    "blockHash": "0xbeab0aa2411b7ab17f30a99d3cb9c6ef2fc5426d6ad6fd9e2a26a6aed1d1055b",
    "blockNumber": "0x15df", // 5599
    "transactionIndex":  "0x1", // 1
    "from":"0x407d73d8a49eeb85d32cf465507dd71d507100c1",
    "to":"0x85h43d8a49eeb85d32cf465507dd71d507100c1",
    "value":"0x7f110", // 520464
    "gas": "0x7f110", // 520464
    "gasPrice":"0x09184e72a000",
    "input":"0x603880600c6000396000f300603880600c6000396000f3603880600c6000396000f360",
  }
}

eth_getTransactionByBlockHashAndIndex

Returns information about a transaction by block hash and transaction index position.

Parameters

DATA, 32 Bytes - hash of a block.
QUANTITY - integer of the transaction index position.

params: [
   '0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331',
   '0x0' // 0
]

Returns

See eth_getTransactionByHash

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionByBlockHashAndIndex","params":["0xc6ef2fc5426d6ad6fd9e2a26abeab0aa2411b7ab17f30a99d3cb96aed1d1055b", "0x0"],"id":1}'

Result see eth_getTransactionByHash

eth_getTransactionByBlockNumberAndIndex

Returns information about a transaction by block number and transaction index position.

Parameters

QUANTITY|TAG - a block number, or the string "earliest", "latest" or "pending", as in the default block parameter.
QUANTITY - the transaction index position.

params: [
   '0x29c', // 668
   '0x0' // 0
]

Returns

See eth_getTransactionByHash

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionByBlockNumberAndIndex","params":["0x29c", "0x0"],"id":1}'

Result see eth_getTransactionByHash

eth_getTransactionReceipt

Returns the receipt of a transaction by transaction hash.

Note That the receipt is not available for pending transactions.

Parameters

DATA, 32 Bytes - hash of a transaction

params: [
   '0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238'
]

Returns

Object - A transaction receipt object, or null when no receipt was found:

transactionHash: DATA, 32 Bytes - hash of the transaction.
transactionIndex: QUANTITY - integer of the transactions index position in the block.
blockHash: DATA, 32 Bytes - hash of the block where this transaction was in.
blockNumber: QUANTITY - block number where this transaction was in.
from: DATA, 20 Bytes - address of the sender.
to: DATA, 20 Bytes - address of the receiver. null when its a contract creation transaction.
cumulativeGasUsed: QUANTITY - The total amount of gas used when this transaction was executed in the block.
gasUsed: QUANTITY - The amount of gas used by this specific transaction alone.
contractAddress: DATA, 20 Bytes - The contract address created, if the transaction was a contract creation, otherwise null.
logs: Array - Array of log objects, which this transaction generated.
logsBloom: DATA, 256 Bytes - Bloom filter for light clients to quickly retrieve related logs.

It also returns either :

root : DATA 32 bytes of post-transaction stateroot (pre Byzantium)
status: QUANTITY either 1 (success) or 0 (failure)

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionReceipt","params":["0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"],"id":1}'

// Result
{
"id":1,
"jsonrpc":"2.0",
"result": {
     transactionHash: '0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238',
     transactionIndex:  '0x1', // 1
     blockNumber: '0xb', // 11
     blockHash: '0xc6ef2fc5426d6ad6fd9e2a26abeab0aa2411b7ab17f30a99d3cb96aed1d1055b',
     cumulativeGasUsed: '0x33bc', // 13244
     gasUsed: '0x4dc', // 1244
     contractAddress: '0xb60e8dd61c5d32be8058bb8eb970870f07233155', // or null, if none was created
     logs: [{
         // logs as returned by getFilterLogs, etc.
     }, ...],
     logsBloom: "0x00...0", // 256 byte bloom filter
     status: '0x1'
  }
}

eth_getUncleByBlockHashAndIndex

Returns information about a uncle of a block by hash and uncle index position.

Parameters

DATA, 32 Bytes - hash a block.
QUANTITY - the uncle's index position.

params: [
   '0xc6ef2fc5426d6ad6fd9e2a26abeab0aa2411b7ab17f30a99d3cb96aed1d1055b',
   '0x0' // 0
]

Returns

See eth_getBlockByHash

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getUncleByBlockHashAndIndex","params":["0xc6ef2fc5426d6ad6fd9e2a26abeab0aa2411b7ab17f30a99d3cb96aed1d1055b", "0x0"],"id":1}'

Result see eth_getBlockByHash

Note: An uncle doesn't contain individual transactions.

eth_getUncleByBlockNumberAndIndex

Returns information about a uncle of a block by number and uncle index position.

Parameters

QUANTITY|TAG - a block number, or the string "earliest", "latest" or "pending", as in the default block parameter.
QUANTITY - the uncle's index position.

params: [
   '0x29c', // 668
   '0x0' // 0
]

Returns

See eth_getBlockByHash

Note: An uncle doesn't contain individual transactions.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getUncleByBlockNumberAndIndex","params":["0x29c", "0x0"],"id":1}'

Result see eth_getBlockByHash

eth_getCompilers

Returns a list of available compilers in the client.

Parameters

none

Returns

Array - Array of available compilers.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getCompilers","params":[],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": ["solidity", "lll", "serpent"]
}

eth_compileSolidity

Returns compiled solidity code.

Parameters

String - The source code.

params: [
   "contract test { function multiply(uint a) returns(uint d) {   return a * 7;   } }",
]

Returns

DATA - The compiled source code.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_compileSolidity","params":["contract test { function multiply(uint a) returns(uint d) {   return a * 7;   } }"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": {
      "code": "0x605880600c6000396000f3006000357c010000000000000000000000000000000000000000000000000000000090048063c6888fa114602e57005b603d6004803590602001506047565b8060005260206000f35b60006007820290506053565b91905056",
      "info": {
        "source": "contract test {\n   function multiply(uint a) constant returns(uint d) {\n       return a * 7;\n   }\n}\n",
        "language": "Solidity",
        "languageVersion": "0",
        "compilerVersion": "0.9.19",
        "abiDefinition": [
          {
            "constant": true,
            "inputs": [
              {
                "name": "a",
                "type": "uint256"
              }
            ],
            "name": "multiply",
            "outputs": [
              {
                "name": "d",
                "type": "uint256"
              }
            ],
            "type": "function"
          }
        ],
        "userDoc": {
          "methods": {}
        },
        "developerDoc": {
          "methods": {}
        }
      }

}

eth_compileLLL

Returns compiled LLL code.

Parameters

String - The source code.

params: [
   "(returnlll (suicide (caller)))",
]

Returns

DATA - The compiled source code.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_compileLLL","params":["(returnlll (suicide (caller)))"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x603880600c6000396000f3006001600060e060020a600035048063c6888fa114601857005b6021600435602b565b8060005260206000f35b600081600702905091905056" // the compiled source code
}

eth_compileSerpent

Returns compiled serpent code.

Parameters

String - The source code.

params: [
   "/* some serpent */",
]

Returns

DATA - The compiled source code.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_compileSerpent","params":["/* some serpent */"],"id":1}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x603880600c6000396000f3006001600060e060020a600035048063c6888fa114601857005b6021600435602b565b8060005260206000f35b600081600702905091905056" // the compiled source code
}

eth_newFilter

Creates a filter object, based on filter options, to notify when the state changes (logs).
To check if the state has changed, call eth_getFilterChanges.

A note on specifying topic filters:

Topics are order-dependent. A transaction with a log with topics [A, B] will be matched by the following topic filters:

[] "anything"
[A] "A in first position (and anything after)"
[null, B] "anything in first position AND B in second position (and anything after)"
[A, B] "A in first position AND B in second position (and anything after)"
[[A, B], [A, B]] "(A OR B) in first position AND (A OR B) in second position (and anything after)"

Parameters

Object - The filter options:

fromBlock: QUANTITY|TAG - (optional, default: "latest") Integer block number, or "latest" for the last mined block or "pending", "earliest" for not yet mined transactions.
toBlock: QUANTITY|TAG - (optional, default: "latest") Integer block number, or "latest" for the last mined block or "pending", "earliest" for not yet mined transactions.
address: DATA|Array, 20 Bytes - (optional) Contract address or a list of addresses from which logs should originate.
topics: Array of DATA, - (optional) Array of 32 Bytes DATA topics. Topics are order-dependent. Each topic can also be an array of DATA with "or" options.

params: [{
  "fromBlock": "0x1",
  "toBlock": "0x2",
  "address": "0x8888f1f195afa192cfee860698584c030f4c9db1",
  "topics": ["0x000000000000000000000000a94f5374fce5edbc8e2a8697c15331677e6ebf0b", null, ["0x000000000000000000000000a94f5374fce5edbc8e2a8697c15331677e6ebf0b", "0x0000000000000000000000000aff3454fce5edbc8cca8697c15331677e6ebccc"]]
}]

Returns

QUANTITY - A filter id.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_newFilter","params":[{"topics":["0x12341234"]}],"id":73}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x1" // 1
}

eth_newBlockFilter

Creates a filter in the node, to notify when a new block arrives.
To check if the state has changed, call eth_getFilterChanges.

Parameters

None

Returns

QUANTITY - A filter id.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_newBlockFilter","params":[],"id":73}'

// Result
{
  "id":1,
  "jsonrpc":  "2.0",
  "result": "0x1" // 1
}

eth_newPendingTransactionFilter

Creates a filter in the node, to notify when new pending transactions arrive.
To check if the state has changed, call eth_getFilterChanges.

Parameters

None

Returns

QUANTITY - A filter id.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_newPendingTransactionFilter","params":[],"id":73}'

// Result
{
  "id":1,
  "jsonrpc":  "2.0",
  "result": "0x1" // 1
}

eth_uninstallFilter

Uninstalls a filter with given id. Should always be called when watch is no longer needed.
Additonally Filters timeout when they aren't requested with eth_getFilterChanges for a period of time.

Parameters

QUANTITY - The filter id.

params: [
  "0xb" // 11
]

Returns

Boolean - true if the filter was successfully uninstalled, otherwise false.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_uninstallFilter","params":["0xb"],"id":73}'

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

eth_getFilterChanges

Polling method for a filter, which returns an array of logs which occurred since last poll.

Parameters

QUANTITY - the filter id.

params: [
  "0x16" // 22
]

Returns

Array - Array of log objects, or an empty array if nothing has changed since last poll.

For filters created with eth_newBlockFilter the return are block hashes (DATA, 32 Bytes), e.g. ["0x3454645634534..."].
For filters created with eth_newPendingTransactionFilter the return are transaction hashes (DATA, 32 Bytes), e.g. ["0x6345343454645..."].
For filters created with eth_newFilter logs are objects with following params:
- removed: TAG - true when the log was removed, due to a chain reorganization. false if its a valid log.
- logIndex: QUANTITY - integer of the log index position in the block. null when its pending log.
- transactionIndex: QUANTITY - integer of the transactions index position log was created from. null when its pending log.
- transactionHash: DATA, 32 Bytes - hash of the transactions this log was created from. null when its pending log.
- blockHash: DATA, 32 Bytes - hash of the block where this log was in. null when its pending. null when its pending log.
- blockNumber: QUANTITY - the block number where this log was in. null when its pending. null when its pending log.
- address: DATA, 20 Bytes - address from which this log originated.
- data: DATA - contains one or more 32 Bytes non-indexed arguments of the log.
- topics: Array of DATA - Array of 0 to 4 32 Bytes DATA of indexed log arguments. (In solidity: The first topic is the hash of the signature of the event (e.g. Deposit(address,bytes32,uint256)), except you declared the event with the anonymous specifier.)

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getFilterChanges","params":["0x16"],"id":73}'

// Result
{
  "id":1,
  "jsonrpc":"2.0",
  "result": [{
    "logIndex": "0x1", // 1
    "blockNumber":"0x1b4", // 436
    "blockHash": "0x8216c5785ac562ff41e2dcfdf5785ac562ff41e2dcfdf829c5a142f1fccd7d",
    "transactionHash":  "0xdf829c5a142f1fccd7d8216c5785ac562ff41e2dcfdf5785ac562ff41e2dcf",
    "transactionIndex": "0x0", // 0
    "address": "0x16c5785ac562ff41e2dcfdf829c5a142f1fccd7d",
    "data":"0x0000000000000000000000000000000000000000000000000000000000000000",
    "topics": ["0x59ebeb90bc63057b6515673c3ecf9438e5058bca0f92585014eced636878c9a5"]
    },{
      ...
    }]
}

eth_getFilterLogs

Returns an array of all logs matching filter with given id.

Parameters

QUANTITY - The filter id.

params: [
  "0x16" // 22
]

Returns

See eth_getFilterChanges

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getFilterLogs","params":["0x16"],"id":74}'

Result see eth_getFilterChanges

eth_getLogs

Returns an array of all logs matching a given filter object.

Parameters

Object - The filter options:

fromBlock: QUANTITY|TAG - (optional, default: "latest") Integer block number, or "latest" for the last mined block or "pending", "earliest" for not yet mined transactions.
toBlock: QUANTITY|TAG - (optional, default: "latest") Integer block number, or "latest" for the last mined block or "pending", "earliest" for not yet mined transactions.
address: DATA|Array, 20 Bytes - (optional) Contract address or a list of addresses from which logs should originate.
topics: Array of DATA, - (optional) Array of 32 Bytes DATA topics. Topics are order-dependent. Each topic can also be an array of DATA with "or" options.
blockhash: DATA, 32 Bytes - (optional, future) With the addition of EIP-234, there will be an additional optional field of params named blockHash. This restricts the logs returned to the single block with the 32-byte hash blockHash. Using blockHash is equivalent to fromBlock = toBlock = the block number with hash blockHash. If blockHash is present in params, then neither fromBlock nor toBlock are allowed.

params: [{
  "topics": ["0x000000000000000000000000a94f5374fce5edbc8e2a8697c15331677e6ebf0b"]
}]

Returns

See eth_getFilterChanges

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getLogs","params":[{"topics":["0x000000000000000000000000a94f5374fce5edbc8e2a8697c15331677e6ebf0b"]}],"id":74}'

Result see eth_getFilterChanges

eth_getWork

Returns the hash of the current block, the seedHash, and the boundary condition to be met ("target").

Parameters

none

Returns

Array - Array with the following properties:

DATA, 32 Bytes - current block header pow-hash
DATA, 32 Bytes - the seed hash used for the DAG.
DATA, 32 Bytes - the boundary condition ("target"), 2^256 / difficulty.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getWork","params":[],"id":73}'

// Result
{
  "id":1,
  "jsonrpc":"2.0",
  "result": [
      "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
      "0x5EED00000000000000000000000000005EED0000000000000000000000000000",
      "0xd1ff1c01710000000000000000000000d1ff1c01710000000000000000000000"
    ]
}

eth_submitWork

Used for submitting a proof-of-work solution.

Parameters

DATA, 8 Bytes - The nonce found (64 bits)
DATA, 32 Bytes - The header's pow-hash (256 bits)
DATA, 32 Bytes - The mix digest (256 bits)

params: [
  "0x0000000000000001",
  "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
  "0xD1FE5700000000000000000000000000D1FE5700000000000000000000000000"
]

Returns

Boolean - returns true if the provided solution is valid, otherwise false.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0", "method":"eth_submitWork", "params":["0x0000000000000001", "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef", "0xD1GE5700000000000000000000000000D1GE5700000000000000000000000000"],"id":73}'

// Result
{
  "id":73,
  "jsonrpc":"2.0",
  "result": true
}

eth_submitHashrate

Used for submitting mining hashrate.

Parameters

Hashrate, a hexadecimal string representation (32 bytes) of the hash rate
ID, String - A random hexadecimal(32 bytes) ID identifying the client

params: [
  "0x0000000000000000000000000000000000000000000000000000000000500000",
  "0x59daa26581d0acd1fce254fb7e85952f4c09d0915afd33d3886cd914bc7d283c"
]

Returns

Boolean - returns true if submitting went through succesfully and false otherwise.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0", "method":"eth_submitHashrate", "params":["0x0000000000000000000000000000000000000000000000000000000000500000", "0x59daa26581d0acd1fce254fb7e85952f4c09d0915afd33d3886cd914bc7d283c"],"id":73}'

// Result
{
  "id":73,
  "jsonrpc":"2.0",
  "result": true
}

db_putString

Stores a string in the local database.

Note this function is deprecated and will be removed in the future.

Parameters

String - Database name.
String - Key name.
String - String to store.

params: [
  "testDB",
  "myKey",
  "myString"
]

Returns

Boolean - returns true if the value was stored, otherwise false.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"db_putString","params":["testDB","myKey","myString"],"id":73}'

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

db_getString

Returns string from the local database.

Note this function is deprecated and will be removed in the future.

Parameters

String - Database name.
String - Key name.

params: [
  "testDB",
  "myKey",
]

Returns

String - The previously stored string.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"db_getString","params":["testDB","myKey"],"id":73}'

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

db_putHex

Stores binary data in the local database.

Note this function is deprecated and will be removed in the future.

Parameters

String - Database name.
String - Key name.
DATA - The data to store.

params: [
  "testDB",
  "myKey",
  "0x68656c6c6f20776f726c64"
]

Returns

Boolean - returns true if the value was stored, otherwise false.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"db_putHex","params":["testDB","myKey","0x68656c6c6f20776f726c64"],"id":73}'

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

db_getHex

Returns binary data from the local database.

Note this function is deprecated and will be removed in the future.

Parameters

String - Database name.
String - Key name.

params: [
  "testDB",
  "myKey",
]

Returns

DATA - The previously stored data.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"db_getHex","params":["testDB","myKey"],"id":73}'

// Result
{
  "id":1,
  "jsonrpc":"2.0",
  "result": "0x68656c6c6f20776f726c64"
}

shh_version

Returns the current whisper protocol version.

Parameters

none

Returns

String - The current whisper protocol version

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"shh_version","params":[],"id":67}'

// Result
{
  "id":67,
  "jsonrpc": "2.0",
  "result": "2"
}

shh_post

Sends a whisper message.

Parameters

Object - The whisper post object:

from: DATA, 60 Bytes - (optional) The identity of the sender.
to: DATA, 60 Bytes - (optional) The identity of the receiver. When present whisper will encrypt the message so that only the receiver can decrypt it.
topics: Array of DATA - Array of DATA topics, for the receiver to identify messages.
payload: DATA - The payload of the message.
priority: QUANTITY - The integer of the priority in a rang from ... (?).
ttl: QUANTITY - integer of the time to live in seconds.

params: [{
  from: "0x04f96a5e25610293e42a73908e93ccc8c4d4dc0edcfa9fa872f50cb214e08ebf61a03e245533f97284d442460f2998cd41858798ddfd4d661997d3940272b717b1",
  to: "0x3e245533f97284d442460f2998cd41858798ddf04f96a5e25610293e42a73908e93ccc8c4d4dc0edcfa9fa872f50cb214e08ebf61a0d4d661997d3940272b717b1",
  topics: ["0x776869737065722d636861742d636c69656e74", "0x4d5a695276454c39425154466b61693532"],
  payload: "0x7b2274797065223a226d6",
  priority: "0x64",
  ttl: "0x64",
}]

Returns

Boolean - returns true if the message was send, otherwise false.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"shh_post","params":[{"from":"0xc931d93e97ab07fe42d923478ba2465f2..","topics": ["0x68656c6c6f20776f726c64"],"payload":"0x68656c6c6f20776f726c64","ttl":0x64,"priority":0x64}],"id":73}'

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

shh_newIdentity

Creates new whisper identity in the client.

Parameters

none

Returns

DATA, 60 Bytes - the address of the new identiy.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"shh_newIdentity","params":[],"id":73}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0xc931d93e97ab07fe42d923478ba2465f283f440fd6cabea4dd7a2c807108f651b7135d1d6ca9007d5b68aa497e4619ac10aa3b27726e1863c1fd9b570d99bbaf"
}

shh_hasIdentity

Checks if the client hold the private keys for a given identity.

Parameters

DATA, 60 Bytes - The identity address to check.

params: [
  "0x04f96a5e25610293e42a73908e93ccc8c4d4dc0edcfa9fa872f50cb214e08ebf61a03e245533f97284d442460f2998cd41858798ddfd4d661997d3940272b717b1"
]

Returns

Boolean - returns true if the client holds the privatekey for that identity, otherwise false.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"shh_hasIdentity","params":["0x04f96a5e25610293e42a73908e93ccc8c4d4dc0edcfa9fa872f50cb214e08ebf61a03e245533f97284d442460f2998cd41858798ddfd4d661997d3940272b717b1"],"id":73}'

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

shh_newGroup

(?)

Parameters

none

Returns

DATA, 60 Bytes - the address of the new group. (?)

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"shh_newGroup","params":[],"id":73}'

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0xc65f283f440fd6cabea4dd7a2c807108f651b7135d1d6ca90931d93e97ab07fe42d923478ba2407d5b68aa497e4619ac10aa3b27726e1863c1fd9b570d99bbaf"
}

shh_addToGroup

(?)

Parameters

DATA, 60 Bytes - The identity address to add to a group (?).

params: [
  "0x04f96a5e25610293e42a73908e93ccc8c4d4dc0edcfa9fa872f50cb214e08ebf61a03e245533f97284d442460f2998cd41858798ddfd4d661997d3940272b717b1"
]

Returns

Boolean - returns true if the identity was successfully added to the group, otherwise false (?).

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"shh_addToGroup","params":["0x04f96a5e25610293e42a73908e93ccc8c4d4dc0edcfa9fa872f50cb214e08ebf61a03e245533f97284d442460f2998cd41858798ddfd4d661997d3940272b717b1"],"id":73}'

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

shh_newFilter

Creates filter to notify, when client receives whisper message matching the filter options.

Parameters

Object - The filter options:

to: DATA, 60 Bytes - (optional) Identity of the receiver. When present it will try to decrypt any incoming message if the client holds the private key to this identity.
topics: Array of DATA - Array of DATA topics which the incoming message's topics should match. You can use the following combinations:
- [A, B] = A && B
- [A, [B, C]] = A && (B || C)
- [null, A, B] = ANYTHING && A && B null works as a wildcard

params: [{
   "topics": ['0x12341234bf4b564f'],
   "to": "0x04f96a5e25610293e42a73908e93ccc8c4d4dc0edcfa9fa872f50cb214e08ebf61a03e245533f97284d442460f2998cd41858798ddfd4d661997d3940272b717b1"
}]

Returns

QUANTITY - The newly created filter.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"shh_newFilter","params":[{"topics": ['0x12341234bf4b564f'],"to": "0x2341234bf4b2341234bf4b564f..."}],"id":73}'

// Result
{
  "id":1,
  "jsonrpc":"2.0",
  "result": "0x7" // 7
}

shh_uninstallFilter

Uninstalls a filter with given id. Should always be called when watch is no longer needed.
Additonally Filters timeout when they aren't requested with shh_getFilterChanges for a period of time.

Parameters

QUANTITY - The filter id.

params: [
  "0x7" // 7
]

Returns

Boolean - true if the filter was successfully uninstalled, otherwise false.

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"shh_uninstallFilter","params":["0x7"],"id":73}'

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

shh_getFilterChanges

Polling method for whisper filters. Returns new messages since the last call of this method.

Note calling the shh_getMessages method, will reset the buffer for this method, so that you won't receive duplicate messages.

Parameters

QUANTITY - The filter id.

params: [
  "0x7" // 7
]

Returns

Array - Array of messages received since last poll:

hash: DATA, 32 Bytes (?) - The hash of the message.
from: DATA, 60 Bytes - The sender of the message, if a sender was specified.
to: DATA, 60 Bytes - The receiver of the message, if a receiver was specified.
expiry: QUANTITY - Integer of the time in seconds when this message should expire (?).
ttl: QUANTITY - Integer of the time the message should float in the system in seconds (?).
sent: QUANTITY - Integer of the unix timestamp when the message was sent.
topics: Array of DATA - Array of DATA topics the message contained.
payload: DATA - The payload of the message.
workProved: QUANTITY - Integer of the work this message required before it was send (?).

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"shh_getFilterChanges","params":["0x7"],"id":73}'

// Result
{
  "id":1,
  "jsonrpc":"2.0",
  "result": [{
    "hash": "0x33eb2da77bf3527e28f8bf493650b1879b08c4f2a362beae4ba2f71bafcd91f9",
    "from": "0x3ec052fc33..",
    "to": "0x87gdf76g8d7fgdfg...",
    "expiry": "0x54caa50a", // 1422566666
    "sent": "0x54ca9ea2", // 1422565026
    "ttl": "0x64", // 100
    "topics": ["0x6578616d"],
    "payload": "0x7b2274797065223a226d657373616765222c2263686...",
    "workProved": "0x0"
    }]
}

shh_getMessages

Get all messages matching a filter. Unlike shh_getFilterChanges this returns all messages.

Parameters

QUANTITY - The filter id.

params: [
  "0x7" // 7
]

Returns

See shh_getFilterChanges

Example

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"shh_getMessages","params":["0x7"],"id":73}'

Result see shh_getFilterChanges