eth-token-index

Token symbol to address unique index
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add.py (2723B)

      1 """Adds a new token to the token symbol index
      2 
      3 .. moduleauthor:: Louis Holbrook <dev@holbrook.no>
      4 .. pgp:: 0826EDA1702D1E87C6E2875121D2E7BB88C2A746 
      5 
      6 """
      7 
      8 # standard imports
      9 import sys
     10 import os
     11 import json
     12 import argparse
     13 import logging
     14 import hashlib
     15 
     16 # external imports
     17 import chainlib.eth.cli
     18 from chainlib.chain import ChainSpec
     19 from chainlib.eth.tx import receipt
     20 from eth_erc20 import ERC20
     21 from chainlib.eth.address import to_checksum_address
     22 from hexathon import add_0x
     23 
     24 # local imports
     25 from eth_token_index import TokenUniqueSymbolIndex
     26 
     27 logging.basicConfig(level=logging.WARNING)
     28 logg = logging.getLogger()
     29 
     30 arg_flags = chainlib.eth.cli.argflag_std_write | chainlib.eth.cli.Flag.EXEC
     31 argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
     32 argparser.add_argument('token_address', type=str, help='Token address to add to index')
     33 args = argparser.parse_args()
     34 
     35 extra_args = {
     36     'token_address': None,
     37         }
     38 config = chainlib.eth.cli.Config.from_args(args, arg_flags, extra_args=extra_args, default_fee_limit=TokenUniqueSymbolIndex.gas())
     39 
     40 wallet = chainlib.eth.cli.Wallet()
     41 wallet.from_config(config)
     42 
     43 rpc = chainlib.eth.cli.Rpc(wallet=wallet)
     44 conn = rpc.connect_by_config(config)
     45 
     46 chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
     47 
     48 
     49 def main():
     50     signer = rpc.get_signer()
     51     signer_address = rpc.get_sender_address()
     52 
     53     gas_oracle = rpc.get_gas_oracle()
     54     nonce_oracle = rpc.get_nonce_oracle()
     55 
     56     c = TokenUniqueSymbolIndex(chain_spec, signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle)
     57 
     58     token_address = to_checksum_address(config.get('_TOKEN_ADDRESS'))
     59     if not config.true('_UNSAFE') and token_address != add_0x(config.get('_TOKEN_ADDRESS')):
     60         raise ValueError('invalid checksum address for token_address')
     61 
     62     contract_address = to_checksum_address(config.get('_EXEC_ADDRESS'))
     63     if not config.true('_UNSAFE') and contract_address != add_0x(config.get('_EXEC_ADDRESS')):
     64         raise ValueError('invalid checksum address for contract')
     65 
     66     (tx_hash_hex, o) = c.register(contract_address, signer_address, token_address)
     67 
     68     if config.get('_RPC_SEND'):
     69         conn.do(o)
     70         if config.get('_WAIT'):
     71             r = conn.wait(tx_hash_hex)
     72             if r['status'] == 0:
     73                 sys.stderr.write('EVM revert while deploying contract. Wish I had more to tell you')
     74                 sys.exit(1)
     75 
     76         c = ERC20(chain_spec)
     77         o = c.symbol(token_address)
     78         r = conn.do(o)
     79         token_symbol = ERC20.parse_symbol(r)
     80 
     81         logg.info('added token {} at {} to token index {}'.format(token_symbol, token_address, contract_address))
     82 
     83         print(tx_hash_hex)
     84     else:
     85         print(o)
     86 
     87 
     88 if __name__ == '__main__':
     89     main()