How to use the pywaves.throw_error function in PyWaves
To help you get started, we’ve selected a few PyWaves examples, based on popular ways it is used in public projects.
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PyWaves / PyWaves / address.py View on Github 
def sendWaves(self, recipient, amount, attachment='', txFee=pywaves.DEFAULT_TX_FEE, timestamp=0):
if not self.privateKey:
msg = 'Private key required'
logging.error(msg)
pywaves.throw_error(msg)
elif amount <= 0:
msg = 'Amount must be > 0'
logging.error(msg)
pywaves.throw_error(msg)
elif not pywaves.OFFLINE and self.balance() < amount + txFee:
msg = 'Insufficient Waves balance'
logging.error(msg)
pywaves.throw_error(msg)
else:
if timestamp == 0:
timestamp = int(time.time() * 1000)
sData = b'\4' + \
b'\2' + \
base58.b58decode(self.publicKey) + \
b'\0\0' + \
struct.pack(">Q", timestamp) + \
struct.pack(">Q", amount) + \
struct.pack(">Q", txFee) + \
base58.b58decode(recipient.address) + \def leaseCancel(self, leaseId, txFee=pywaves.DEFAULT_LEASE_FEE, timestamp=0):
if not self.privateKey:
msg = 'Private key required'
logging.error(msg)
pywaves.throw_error(msg)
elif not pywaves.OFFLINE and self.balance() < txFee:
msg = 'Insufficient Waves balance'
logging.error(msg)
pywaves.throw_error(msg)
else:
if timestamp == 0:
timestamp = int(time.time() * 1000)
sData = b'\x09' + \
base58.b58decode(self.publicKey) + \
struct.pack(">Q", txFee) + \
struct.pack(">Q", timestamp) + \
base58.b58decode(leaseId)
signature = crypto.sign(self.privateKey, sData)
data = json.dumps({
"senderPublicKey": self.publicKey,
"txId": leaseId,
"fee": txFee,
"timestamp": timestamp,
"signature": signature
})def sendWaves(self, recipient, amount, attachment='', txFee=pywaves.DEFAULT_TX_FEE, timestamp=0):
if not self.privateKey:
msg = 'Private key required'
logging.error(msg)
pywaves.throw_error(msg)
elif amount <= 0:
msg = 'Amount must be > 0'
logging.error(msg)
pywaves.throw_error(msg)
elif not pywaves.OFFLINE and self.balance() < amount + txFee:
msg = 'Insufficient Waves balance'
logging.error(msg)
pywaves.throw_error(msg)
else:
if timestamp == 0:
timestamp = int(time.time() * 1000)
sData = b'\4' + \
b'\2' + \
base58.b58decode(self.publicKey) + \
b'\0\0' + \
struct.pack(">Q", timestamp) + \
struct.pack(">Q", amount) + \
struct.pack(">Q", txFee) + \
base58.b58decode(recipient.address) + \
struct.pack(">H", len(attachment)) + \
crypto.str2bytes(attachment)
signature = crypto.sign(self.privateKey, sData)
data = json.dumps({def issueAsset(self, name, description, quantity, decimals=0, reissuable=False, txFee=pywaves.DEFAULT_ASSET_FEE):
if not self.privateKey:
msg = 'Private key required'
logging.error(msg)
pywaves.throw_error(msg)
elif len(name) < 4 or len(name) > 16:
msg = 'Asset name must be between 4 and 16 characters long'
logging.error(msg)
pywaves.throw_error(msg)
else:
timestamp = int(time.time() * 1000)
sData = b'\3' + \
base58.b58decode(self.publicKey) + \
struct.pack(">H", len(name)) + \
crypto.str2bytes(name) + \
struct.pack(">H", len(description)) + \
crypto.str2bytes(description) + \
struct.pack(">Q", quantity) + \
struct.pack(">B", decimals) + \
(b'\1' if reissuable else b'\0') + \
struct.pack(">Q", txFee) + \
struct.pack(">Q", timestamp)
signature=crypto.sign(self.privateKey, sData)
data = json.dumps({
"senderPublicKey": self.publicKey,def lease(self, recipient, amount, txFee=pywaves.DEFAULT_LEASE_FEE, timestamp=0):
if not self.privateKey:
msg = 'Private key required'
logging.error(msg)
pywaves.throw_error(msg)
elif amount <= 0:
msg = 'Amount must be > 0'
logging.error(msg)
pywaves.throw_error(msg)
elif not pywaves.OFFLINE and self.balance() < amount + txFee:
msg = 'Insufficient Waves balance'
logging.error(msg)
pywaves.throw_error(msg)
else:
if timestamp == 0:
timestamp = int(time.time() * 1000)
sData = b'\x08' + \
base58.b58decode(self.publicKey) + \
base58.b58decode(recipient.address) + \
struct.pack(">Q", amount) + \
struct.pack(">Q", txFee) + \
struct.pack(">Q", timestamp)
signature = crypto.sign(self.privateKey, sData)
data = json.dumps({
"senderPublicKey": self.publicKey,
"recipient": recipient.address,
"amount": amount,
"fee": txFee,
"timestamp": timestamp,def sendWaves(self, recipient, amount, attachment='', txFee=pywaves.DEFAULT_TX_FEE, timestamp=0):
if not self.privateKey:
msg = 'Private key required'
logging.error(msg)
pywaves.throw_error(msg)
elif amount <= 0:
msg = 'Amount must be > 0'
logging.error(msg)
pywaves.throw_error(msg)
elif not pywaves.OFFLINE and self.balance() < amount + txFee:
msg = 'Insufficient Waves balance'
logging.error(msg)
pywaves.throw_error(msg)
else:
if timestamp == 0:
timestamp = int(time.time() * 1000)
sData = b'\4' + \
b'\2' + \
base58.b58decode(self.publicKey) + \def cancelOrder(self, assetPair, order):
if not pywaves.OFFLINE:
if order.status() == 'Filled':
msg = "Order already filled"
logging.error(msg)
pywaves.throw_error(msg)
elif not order.status():
msg = "Order not found"
logging.error(msg)
pywaves.throw_error(msg)
sData = base58.b58decode(self.publicKey) + \
base58.b58decode(order.orderId)
signature = crypto.sign(self.privateKey, sData)
data = json.dumps({
"sender": self.publicKey,
"orderId": order.orderId,
"signature": signature
})
req = pywaves.wrapper('/matcher/orderbook/%s/%s/cancel' % ('WAVES' if assetPair.asset1.assetId=='' else assetPair.asset1.assetId, 'WAVES' if assetPair.asset2.assetId=='' else assetPair.asset2.assetId), data, host=pywaves.MATCHER)
if pywaves.OFFLINE:
return reqdef lease(self, recipient, amount, txFee=pywaves.DEFAULT_LEASE_FEE, timestamp=0):
if not self.privateKey:
msg = 'Private key required'
logging.error(msg)
pywaves.throw_error(msg)
elif amount <= 0:
msg = 'Amount must be > 0'
logging.error(msg)
pywaves.throw_error(msg)
elif not pywaves.OFFLINE and self.balance() < amount + txFee:
msg = 'Insufficient Waves balance'
logging.error(msg)
pywaves.throw_error(msg)
else:
if timestamp == 0:
timestamp = int(time.time() * 1000)
sData = b'\x08' + \
base58.b58decode(self.publicKey) + \
base58.b58decode(recipient.address) + \
struct.pack(">Q", amount) + \
struct.pack(">Q", txFee) + \def candles(self, *args):
if len(args)==2:
timeframe = args[0]
limit = args[1]
if timeframe not in pywaves.VALID_TIMEFRAMES:
msg = 'Invalid timeframe'
pywaves.throw_error(msg)
return logging.error(msg)
elif limit > 0 and limit <= pywaves.MAX_WDF_REQUEST:
return self._getMarketData('/api/candles', '%d/%d' % (timeframe, limit))
else:
msg = 'Invalid request. Limit must be >0 and <= 100'
pywaves.throw_error(msg)
return logging.error(msg)
elif len(args)==3:
timeframe = args[0]
fromTimestamp = args[1]
toTimestamp = args[2]
if timeframe not in pywaves.VALID_TIMEFRAMES:
msg = 'Invalid timeframe'
pywaves.throw_error(msg)
return logging.error(msg)
else:
return self._getMarketData('/api/candles', '%d/%d/%d' % (timeframe, fromTimestamp, toTimestamp))PyWaves
Object-oriented library for the Waves blockchain platform
Package Health Score
61 / 100Popular PyWaves functions
- pywaves.Address
- pywaves.Asset
- pywaves.AssetPair
- pywaves.CHAIN_ID
- pywaves.crypto
- pywaves.crypto.bytes2str
- pywaves.crypto.hashChain
- pywaves.crypto.sha256
- pywaves.crypto.sign
- pywaves.crypto.str2bytes
- pywaves.DEFAULT_MATCHER_FEE
- pywaves.MATCHER
- pywaves.MATCHER_PUBLICKEY
- pywaves.Order
- pywaves.setMatcher
- pywaves.setNode
- pywaves.throw_error
- pywaves.validateAddress
- pywaves.WAVES
- pywaves.wrapper