A Python library for interacting and working with the Woop blockchain.
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pywiki/pyhmy/transaction.py

793 lines
24 KiB

from .rpc.request import (
rpc_request
)
from .exceptions import (
TxConfirmationTimedoutError,
InvalidRPCReplyError
)
import time
import random
_default_endpoint = 'http://localhost:9500'
_default_timeout = 30
#########################
# Transaction Pool RPCs #
#########################
def get_pending_transactions(endpoint=_default_endpoint, timeout=_default_timeout) -> list:
"""
Get list of pending transactions
Parameters
----------
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
list of transactions in the pool, see get_transaction_by_hash for a description
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint
API Reference
-------------
https://api.hmny.io/#de6c4a12-fa42-44e8-972f-801bfde1dd18
"""
method = 'hmyv2_pendingTransactions'
try:
return rpc_request(method, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def get_transaction_error_sink(endpoint=_default_endpoint, timeout=_default_timeout) -> list:
"""
Get current transactions error sink
Parameters
----------
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
list of transaction failure dictionaries with the following keys:
tx-hash-id: :obj:`str` Transaction hash
time-at-rejection: :obj:`int` Unix time when the transaction was rejected from the pool
error-message: :obj:`str` Reason for transaction rejection (for example insufficient funds)
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint
API Reference
-------------
https://api.hmny.io/#9aedbc22-6262-44b1-8276-cd8ae19fa600
"""
method = 'hmyv2_getCurrentTransactionErrorSink'
try:
return rpc_request(method, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def get_pending_staking_transactions(endpoint=_default_endpoint, timeout=_default_timeout) -> list:
"""
Get list of pending staking transactions
Parameters
----------
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
list of staking transactions in the pool, see get_staking_transaction_by_hash for a description
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint
API Reference
-------------
https://api.hmny.io/#de0235e4-f4c9-4a69-b6d2-b77dc1ba7b12
"""
method = 'hmyv2_pendingStakingTransactions'
try:
return rpc_request(method, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def get_staking_transaction_error_sink(endpoint=_default_endpoint, timeout=_default_timeout) -> list:
"""
Get current staking transactions error sink
Parameters
----------
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
list of transaction failure dictionaries with the following keys:
tx-hash-id: :obj:`str` Transaction hash
time-at-rejection: :obj:`int` Unix time when the transaction was rejected from the pool
error-message: :obj:`str` Reason for transaction rejection (for example insufficient funds)
directive-kind: :obj:`str` Tope of staking transaction
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint
API Reference
-------------
https://api.hmny.io/#bdd00e0f-2ba0-480e-b996-2ef13f10d75a
"""
method = 'hmyv2_getCurrentStakingErrorSink'
try:
return rpc_request(method, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def get_pool_stats(endpoint=_default_endpoint, timeout=_default_timeout) -> dict:
"""
Get stats of the pool, that is, number of pending and queued (non-executable) transactions
Parameters
----------
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
dict with the following keys:
executable-count: :obj:`int` Number of pending transactions
non-executable-count: :obj:`int` Number of queued (non-executable) transactions
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint
API Reference
-------------
https://api.hmny.io/#7c2b9395-8f5e-4eb5-a687-2f1be683d83e
"""
method = 'hmyv2_getPoolStats'
try:
return rpc_request(method, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
####################
# Transaction RPCs #
####################
def get_transaction_by_hash(tx_hash, endpoint=_default_endpoint, timeout=_default_timeout) -> dict:
"""
Get transaction by hash
Parameters
----------
tx_hash: str
Transaction hash to fetch
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
dict with the following keys
blockHash: :obj:`str` Block hash that transaction was finalized;
"0x0000000000000000000000000000000000000000000000000000000000000000" if tx is pending
blockNumber: :obj:`int` Block number that transaction was finalized; None if tx is pending
ethHash: :obj:`str` legacy from Ethereum; unused
from: :obj:`str` Wallet address
timestamp: :obj:`int` Timestamp in Unix time when transaction was finalized
gas: :obj:`int` Gas limit in Atto
gasPrice :obj:`int` Gas price in Atto
hash: :obj:`str` Transaction hash
input: :obj:`str` Transaction data, used for smart contracts
nonce: :obj:`int` Wallet nonce for the transaction
to: :obj:`str` Wallet address of the receiver
transactionIndex: :obj:`int` Index of transaction in block; None if tx is pending
value: :obj:`int` Amount transferred in Atto
shardID: :obj:`int` Shard where amount if from
toShardID: :obj:`int` Shard where the amount is sent
r: :obj:`str` First 32 bytes of the transaction signature
s: :obj:`str` Next 32 bytes of the transaction signature
v: :obj:`str` Recovery value + 27, as hex string
or None if the transaction is not found
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint
API Reference
-------------
https://api.hmny.io/#117e84f6-a0ec-444e-abe0-455701310389
"""
method = 'hmyv2_getTransactionByHash'
params = [
tx_hash
]
try:
return rpc_request(method, params=params, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def get_transaction_by_block_hash_and_index(block_hash, tx_index,
endpoint=_default_endpoint, timeout=_default_timeout
) -> dict:
"""
Get transaction based on index in list of transactions in a block by block hash
Parameters
----------
block_hash: str
Block hash for transaction
tx_index: int
Transaction index to fetch (starts from 0)
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
dict, see get_transaction_by_hash for description
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint
API Reference
-------------
https://api.hmny.io/#7c7e8d90-4984-4ebe-bb7e-d7adec167503
"""
method = 'hmyv2_getTransactionByBlockHashAndIndex'
params = [
block_hash,
tx_index
]
try:
return rpc_request(method, params=params, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def get_transaction_by_block_number_and_index(block_num, tx_index,
endpoint=_default_endpoint, timeout=_default_timeout
) -> dict:
"""
Get transaction based on index in list of transactions in a block by block number
Parameters
----------
block_num: int
Block number for transaction
tx_index: int
Transaction index to fetch (starts from 0)
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
dict, see get_transaction_by_hash for description
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint
API Reference
-------------
https://api.hmny.io/#bcde8b1c-6ab9-4950-9835-3c7564e49c3e
"""
method = 'hmyv2_getTransactionByBlockNumberAndIndex'
params = [
block_num,
tx_index
]
try:
return rpc_request(method, params=params, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def get_transaction_receipt(tx_hash, endpoint=_default_endpoint, timeout=_default_timeout) -> dict:
"""
Get transaction receipt corresponding to tx_hash
Parameters
----------
tx_hash: str
Transaction receipt to fetch
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
dict with the following keys:
blockHash: :obj:`str` Block hash
blockNumber: :obj:`int` Block number
contractAddress: :obj:`str` Smart contract address
culmulativeGasUsed: :obj:`int` Gas used for transaction
from: :obj:`str` Sender wallet address
gasUsed: :obj:`int` Gas used for the transaction
logs: :obj:`list` List of logs, each being a dict with keys as follows:
address, blockHash, blockNumber, data, logIndex, removed, topics, transactionHash, transactionIndex
logsBloom :obj:`str` Bloom logs
shardID :obj:`int` Shard ID
status :obj:`int` Status of transaction (0: pending, 1: success)
to :obj:`str` Receiver wallet address
transactionHash :obj:`str` Transaction hash
transactionIndex :obj:`int` Transaction index within block
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint
API Reference
-------------
https://api.hmny.io/#0c2799f8-bcdc-41a4-b362-c3a6a763bb5e
"""
method = 'hmyv2_getTransactionReceipt'
params = [
tx_hash
]
try:
return rpc_request(method, params=params, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def send_raw_transaction(signed_tx, endpoint=_default_endpoint, timeout=_default_timeout) -> str:
"""
Send signed transaction
Parameters
----------
signed_tx: str
Hex representation of signed transaction
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
str
Transaction hash
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint, or
RPCError
If transaction failed to be added to the pool
API Reference
-------------
https://api.hmny.io/#f40d124a-b897-4b7c-baf3-e0dedf8f40a0
"""
params = [
signed_tx
]
method = 'hmyv2_sendRawTransaction'
try:
return rpc_request(method, params=params, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def send_and_confirm_raw_transaction(signed_tx, endpoint=_default_endpoint, timeout=_default_timeout) -> list:
"""
Send signed transaction and wait for it to be confirmed
Parameters
----------
signed_tx: str
Hex representation of signed transaction
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
str
Transaction, see get_transaction_by_hash for structure
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint, or
RPCError
If transaction failed to be added to the pool
TxConfirmationTimedoutError
If transaction could not be confirmed within the timeout period
API Reference
-------------
https://api.hmny.io/#f40d124a-b897-4b7c-baf3-e0dedf8f40a0
"""
tx_hash = send_raw_transaction(signed_tx, endpoint=endpoint)
start_time = time.time()
while((time.time() - start_time) <= timeout):
tx_response = get_transaction_by_hash(tx_hash, endpoint=endpoint)
if tx_response is not None:
block_hash = tx_response.get( "blockHash", "0x00" )
unique_chars = "".join( set( list( block_hash[ 2 : ] ) ) )
if unique_chars != "0":
return tx_response
time.sleep(random.uniform(0.2, 0.5))
raise TxConfirmationTimedoutError("Could not confirm transaction on-chain.")
###############################
# CrossShard Transaction RPCs #
###############################
def get_pending_cx_receipts(endpoint=_default_endpoint, timeout=_default_timeout) -> list:
"""
Get list of pending cross shard transactions
Parameters
----------
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
list of CX receipts, each a dict with the following keys
commitBitmap: :obj:`str` Hex represenation of aggregated signature bitmap
commitSig: :obj:`str` Hex representation of aggregated signature
receipts: :obj:`list` list of dictionaries, each representing a cross shard transaction receipt
amount: :obj:`int` Amount in ATTO
from: :obj:`str` From address
to: :obj:`str` From address
shardId: :obj:`int` Originating shard ID
toShardId: :obj:`int` Destination shard ID
txHash: :obj:`str` Transation hash
merkleProof: :obj:`dict` dictionary with the following keys:
blockHash: :obj:`str` Block hash
blockNum: :obj:`int` Block number
receiptHash: :obj:`str` Transaction receipt hash
shardHashes: :obj:`list` Shard hashes for shardIDs
shardID: :obj:`int` Shard ID of originating block
shardIDs: :obj:`list` To shard(s)
header: :obj:`dict` with the following keys (those not noted below are legacy)
shardID: :obj:`int` Originating shard ID
hash: :obj:`str` Block header hash
number: :obj:`int` Block number
viewID: :obj:`int` View ID
epoch: :obj:`int` Epoch number
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint, or
if transaction failed to be added to the pool
API Reference
-------------
https://api.hmny.io/#fe60070d-97b4-458d-9365-490b44c18851
"""
method = 'hmyv2_getPendingCXReceipts'
try:
return rpc_request(method, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def get_cx_receipt_by_hash(cx_hash, endpoint = _default_endpoint, timeout = _default_timeout) -> dict:
"""
Get cross shard receipt by hash on the receiving shard end point
Parameters
----------
cx_hash: str
Hash of cross shard transaction receipt
endpoint: :obj:`str`, optional
Receiving endpoint for the RPC query
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
dict with the following keys
blockHash: :obj:`str` Block hash
blockNumber: :obj:`int` Block number
hash: :obj:`str` Transaction hash
from: :obj:`str` Sender wallet address
to: :obj:`str` Receiver wallet address
shardID: :obj:`int` From shard
toShardID: :obj:`int` To shard
value: :obj:`int` Amount transferred in Atto
None if cx receipt hash not found
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint
API Reference
-------------
https://api.hmny.io/#3d6ad045-800d-4021-aeb5-30a0fbf724fe
"""
params = [
cx_hash
]
method = 'hmyv2_getCXReceiptByHash'
try:
return rpc_request(method, params=params, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def resend_cx_receipt(cx_hash, endpoint=_default_endpoint, timeout=_default_timeout) -> bool:
"""
Resend the cross shard receipt to the receiving shard to re-process if the transaction did not pay out
Parameters
----------
cx_hash: :obj:`str`
Hash of cross shard transaction receipt
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
bool
True if the cross shard receipt was succesfully resent
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint
API Reference
-------------
https://api.hmny.io/#c658b56b-d20b-480d-b71a-b0bc505d2164
"""
method = 'hmyv2_resendCx'
params = [
cx_hash
]
try:
return rpc_request(method, params=params, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
############################
# Staking Transaction RPCs #
############################
def get_staking_transaction_by_hash(tx_hash, endpoint=_default_endpoint, timeout=_default_timeout) -> dict:
"""
Get staking transaction by hash
Parameters
----------
tx_hash: str
Hash of staking transaction to fetch
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
dict with the following keys
blockHash: :obj:`str` Block hash in which transaction was finalized
blockNumber: :obj:`int` Block number in which transaction was finalized
from: :obj:`str` Sender wallet address
timestamp: :obj:`int` Unix time at which transaction was finalized
gas: :obj:`int` Gas limit of transaction
gasPrice: :obj:`int` Gas price of transaction in Atto
hash: :obj:`str` Transaction hash
nonce: :obj:`int` Wallet nonce of transaction
transactionIndex: :obj:`int` Staking transaction index within block
type: :obj:`str` Type of staking transaction
msg: :obj:`dict` Staking transaction data, depending on the type of staking transaction
r: :obj:`str` First 32 bytes of the transaction signature
s: :obj:`str` Next 32 bytes of the transaction signature
v: :obj:`str` Recovery value + 27, as hex string
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint
API Reference
-------------
https://api.hmny.io/#296cb4d0-bce2-48e3-bab9-64c3734edd27
"""
method = 'hmyv2_getStakingTransactionByHash'
params = [
tx_hash
]
try:
return rpc_request(method, params=params, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def get_staking_transaction_by_block_hash_and_index(block_hash, tx_index,
endpoint=_default_endpoint, timeout=_default_timeout
) -> dict:
"""
Get staking transaction by block hash and transaction index
Parameters
----------
block_hash: str
Block hash for transaction
tx_index: int
Staking transaction index to fetch (starts at 0)
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
dict, see get_staking_transaction_by_hash for description
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint
API Reference
-------------
https://api.hmny.io/#ba96cf61-61fe-464a-aa06-2803bb4b358f
"""
method = 'hmyv2_getStakingTransactionByBlockHashAndIndex'
params = [
block_hash,
tx_index
]
try:
return rpc_request(method, params=params, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def get_staking_transaction_by_block_number_and_index(block_num, tx_index,
endpoint=_default_endpoint, timeout=_default_timeout
) -> dict:
"""
Get staking transaction by block number and transaction index
Parameters
----------
block_num: int
Block number for transaction
tx_index: int
Staking transaction index to fetch
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
dict, see get_staking_transaction_by_hash for description
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint
API Reference
-------------
https://api.hmny.io/#fb41d717-1645-4d3e-8071-6ce8e1b65dd3
"""
method = 'hmyv2_getStakingTransactionByBlockNumberAndIndex'
params = [
block_num,
tx_index
]
try:
return rpc_request(method, params=params, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def send_raw_staking_transaction(raw_tx, endpoint=_default_endpoint, timeout=_default_timeout) -> str:
"""
Send signed staking transaction
Parameters
----------
raw_tx: str
Hex representation of signed transaction
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
str
Transaction hash
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint, or
RPCError
If transaction failed to be added to the pool
API Reference
-------------
https://api.hmny.io/#e8c17fe9-e730-4c38-95b3-6f1a5b1b9401
"""
method = 'hmyv2_sendRawStakingTransaction'
params = [
raw_tx
]
try:
return rpc_request(method, params=params, endpoint=endpoint, timeout=timeout)['result']
except KeyError as e:
raise InvalidRPCReplyError(method, endpoint) from e
def send_and_confirm_raw_staking_transaction(signed_tx, endpoint=_default_endpoint, timeout=_default_timeout) -> list:
"""
Send signed staking transaction and wait for it to be confirmed
Parameters
----------
signed_tx: str
Hex representation of signed staking transaction
endpoint: :obj:`str`, optional
Endpoint to send request to
timeout: :obj:`int`, optional
Timeout in seconds
Returns
-------
str
Transaction, see get_transaction_by_hash for structure
Raises
------
InvalidRPCReplyError
If received unknown result from endpoint, or
RPCError
If transaction failed to be added to the pool
TxConfirmationTimedoutError
If transaction could not be confirmed within the timeout period
API Reference
-------------
https://api.hmny.io/#e8c17fe9-e730-4c38-95b3-6f1a5b1b9401
"""
tx_hash = send_raw_staking_transaction(signed_tx, endpoint=endpoint)
start_time = time.time()
while((time.time() - start_time) <= timeout):
tx_response = get_staking_transaction_by_hash(tx_hash, endpoint=endpoint)
if tx_response is not None:
block_hash = tx_response.get( "blockHash", "0x00" )
unique_chars = "".join( set( list( block_hash[ 2 : ] ) ) )
if unique_chars != "0":
return tx_response
time.sleep(random.uniform(0.2, 0.5))
raise TxConfirmationTimedoutError("Could not confirm transaction on-chain.")