66 lines
2.2 KiB
Python
66 lines
2.2 KiB
Python
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# standard imports
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import os
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# external imports
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from crypto_dev_signer.keystore.dict import DictKeystore
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from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
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from hexathon import (
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add_0x,
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strip_0x,
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)
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# local imports
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from chainlib.chain import ChainSpec
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from chainlib.eth.nonce import OverrideNonceOracle
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from chainlib.eth.gas import OverrideGasOracle
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from chainlib.eth.tx import (
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TxFactory,
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TxFormat,
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unpack,
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pack,
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raw,
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)
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# eth transactions need an explicit chain parameter as part of their signature
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chain_spec = ChainSpec.from_chain_str('evm:ethereum:1')
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# create keystore and signer
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keystore = DictKeystore()
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signer = EIP155Signer(keystore)
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sender_address = keystore.new()
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recipient_address = keystore.new()
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# explicitly set nonce and gas parameters on this transaction
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nonce_oracle = OverrideNonceOracle(sender_address, 0)
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gas_oracle = OverrideGasOracle(price=1000000000, limit=21000)
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# create a new transaction
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tx_factory = TxFactory(chain_spec, signer=signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
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tx = tx_factory.template(sender_address, recipient_address, use_nonce=True)
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tx['value'] = 1024
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(tx_hash, tx_rpc) = tx_factory.finalize(tx)
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print('transaction hash: ' + tx_hash)
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print('jsonrpc payload: ' + str(tx_rpc))
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# create a new transaction, but output in raw rlp format
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tx = tx_factory.template(sender_address, recipient_address, use_nonce=True) # will now have increased nonce by 1
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tx['value'] = 1024
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(tx_hash, tx_signed_raw) = tx_factory.finalize(tx, tx_format=TxFormat.RLP_SIGNED)
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print('transaction hash: ' + tx_hash)
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print('raw rlp payload: ' + tx_signed_raw)
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# convert tx from raw RLP
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tx_signed_raw_bytes = bytes.fromhex(strip_0x(tx_signed_raw))
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tx_src = unpack(tx_signed_raw_bytes, chain_spec)
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print('tx parsed from rlp payload: ' + str(tx_src))
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# .. and back
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tx_signed_raw_bytes_recovered = pack(tx_src, chain_spec)
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tx_signed_raw_recovered = add_0x(tx_signed_raw_bytes_recovered.hex())
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print('raw rlp payload re-parsed: ' + tx_signed_raw_recovered)
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# create a raw send jsonrpc payload from the raw RLP
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o = raw(tx_signed_raw_recovered)
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print('jsonrpc payload: ' + str(o))
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