eth-erc20/python/eth_erc20/runnable/info.py

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#!python3
"""Token balance query script
.. moduleauthor:: Louis Holbrook <dev@holbrook.no>
.. pgp:: 0826EDA1702D1E87C6E2875121D2E7BB88C2A746
"""
# SPDX-License-Identifier: GPL-3.0-or-later
# standard imports
import sys
import os
import json
import argparse
import logging
# external imports
from hexathon import (
add_0x,
strip_0x,
even,
)
import sha3
# external imports
import chainlib.eth.cli
from chainlib.eth.cli.arg import (
Arg,
ArgFlag,
process_args,
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stdin_arg,
)
from chainlib.eth.cli.config import (
Config,
process_config,
)
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from chainlib.eth.address import to_checksum_address
from chainlib.eth.connection import EthHTTPConnection
from chainlib.eth.gas import (
OverrideGasOracle,
balance,
)
from chainlib.chain import ChainSpec
from chainlib.eth.settings import process_settings
from chainlib.settings import ChainSettings
from chainlib.eth.cli.log import process_log
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# local imports
from eth_erc20 import ERC20
logg = logging.getLogger()
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def process_config_local(config, arg, args, flags):
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contract = None
try:
contract = config.get('_EXEC_ADDRESS')
except KeyError:
pass
if contract == None:
address = config.get('_POSARG')
if address:
contract = add_0x(address)
else:
contract = stdin_arg()
config.add(contract, '_CONTRACT', False)
return config
arg_flags = ArgFlag()
arg = Arg(arg_flags)
flags = arg_flags.STD_READ | arg_flags.EXEC | arg_flags.TAB | arg_flags.SENDER
argparser = chainlib.eth.cli.ArgumentParser()
argparser = process_args(argparser, arg, flags)
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argparser.add_argument('contract_address', type=str, help='Token contract address (may also be specified by -e)')
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args = argparser.parse_args()
logg = process_log(args, logg)
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config = Config()
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config = process_config(config, arg, args, flags, positional_name='contract_address')
config = process_config_local(config, arg, args, flags)
logg.debug('config loaded:\n{}'.format(config))
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settings = ChainSettings()
settings = process_settings(settings, config)
logg.debug('settings loaded:\n{}'.format(settings))
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def main():
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token_address = config.get('_CONTRACT')
conn = settings.get('CONN')
sender_address = settings.get('SENDER_ADDRESS')
g = ERC20(
chain_spec=settings.get('CHAIN_SPEC'),
gas_oracle=settings.get('GAS_ORACLE'),
)
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outkeys = config.get('_OUTARG')
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if not outkeys or 'address' in outkeys:
name_o = g.name(token_address, sender_address=sender_address)
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r = conn.do(name_o)
token_name = g.parse_name(r)
s = ''
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if not config.true('_RAW'):
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s = 'Name: '
s += token_name
print(s)
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if not outkeys or 'symbol' in outkeys:
symbol_o = g.symbol(token_address, sender_address=sender_address)
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r = conn.do(symbol_o)
token_symbol = g.parse_symbol(r)
s = ''
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if not config.true('_RAW'):
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s = 'Symbol: '
s += token_symbol
print(s)
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if not outkeys or 'decimals' in outkeys:
decimals_o = g.decimals(token_address, sender_address=sender_address)
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r = conn.do(decimals_o)
decimals = int(strip_0x(r), 16)
s = ''
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if not config.true('_RAW'):
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s = 'Decimals: '
s += str(decimals)
print(s)
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if not outkeys or 'supply' in outkeys:
supply_o = g.total_supply(token_address, sender_address=sender_address)
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r = conn.do(supply_o)
supply = int(strip_0x(r), 16)
s = ''
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if not config.true('_RAW'):
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s = 'Supply: '
s += str(supply)
print(s)
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if __name__ == '__main__':
main()