mirror of
https://github.com/chaintool-py/eth-erc20.git
synced 2024-11-25 19:26:46 +01:00
104 lines
2.6 KiB
Python
104 lines
2.6 KiB
Python
#!python3
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"""Token balance query script
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.. moduleauthor:: Louis Holbrook <dev@holbrook.no>
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.. pgp:: 0826EDA1702D1E87C6E2875121D2E7BB88C2A746
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"""
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# SPDX-License-Identifier: GPL-3.0-or-later
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# standard imports
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import sys
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import os
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import json
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import argparse
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import logging
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# external imports
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from hexathon import (
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add_0x,
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strip_0x,
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even,
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)
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import sha3
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# external imports
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import chainlib.eth.cli
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from chainlib.eth.address import to_checksum_address
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from chainlib.eth.connection import EthHTTPConnection
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from chainlib.eth.gas import (
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OverrideGasOracle,
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balance,
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)
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from chainlib.chain import ChainSpec
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# local imports
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from eth_erc20 import ERC20
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logging.basicConfig(level=logging.WARNING)
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logg = logging.getLogger()
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arg_flags = chainlib.eth.cli.argflag_std_read | chainlib.eth.cli.Flag.EXEC
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argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
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argparser.add_positional('address', type=str, help='Ethereum address of recipient')
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args = argparser.parse_args()
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config = chainlib.eth.cli.Config.from_args(args, arg_flags)
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wallet = chainlib.eth.cli.Wallet()
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wallet.from_config(config)
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holder_address = args.address
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if wallet.get_signer_address() == None and holder_address != None:
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holder_address = wallet.from_address(holder_address)
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rpc = chainlib.eth.cli.Rpc()
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conn = rpc.connect_by_config(config)
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chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
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token_address = config.get('_EXEC_ADDRESS')
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def main():
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g = ERC20(chain_spec=chain_spec, gas_oracle=rpc.get_gas_oracle())
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# determine decimals
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decimals_o = g.decimals(token_address)
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r = conn.do(decimals_o)
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decimals = int(strip_0x(r), 16)
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logg.info('decimals {}'.format(decimals))
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name_o = g.name(token_address)
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r = conn.do(name_o)
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token_name = g.parse_name(r)
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logg.info('name {}'.format(token_name))
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symbol_o = g.symbol(token_address)
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r = conn.do(symbol_o)
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token_symbol = g.parse_symbol(r)
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logg.info('symbol {}'.format(token_symbol))
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# get balance
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balance_o = g.balance(token_address, holder_address)
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r = conn.do(balance_o)
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hx = strip_0x(r)
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balance_value = int(hx, 16)
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logg.debug('balance {} = {} decimals {}'.format(even(hx), balance_value, decimals))
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balance_str = str(balance_value)
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balance_len = len(balance_str)
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if config.get('_RAW'):
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print(balance_str)
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else:
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if balance_len < decimals + 1:
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print('0.{}'.format(balance_str.zfill(decimals)))
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else:
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offset = balance_len-decimals
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print('{}.{}'.format(balance_str[:offset],balance_str[offset:]))
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if __name__ == '__main__':
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main()
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