eth-fn

Name	eth-fn JSON
Version	0.1 JSON
	download
home_page	https://github.com/kernel1983/eth-fn
Summary	eth_fn: Simple Python utilities for web3py to call ETH contract without ABI
upload_time	2025-01-08 19:08:08
maintainer	None
docs_url	None
author	0xKJ
requires_python	<4,>=3.8
license	MIT
keywords	ethereum
VCS
bugtrack_url
requirements	No requirements were recorded.
Travis-CI	No Travis.
coveralls test coverage	No coveralls.

            # eth-fn

In web3py, to call a function od a smart contract, it requires to include long ABI information.

https://web3py.readthedocs.io/en/stable/web3.contract.html

Instead, we can do similiar with `eth_fn`:

    import web3
    import eth_account

    from eth_fn import eth_fn

    a = eth_account.Account.from_key('0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80')
    print(a.address)

    PROVIDER_HOST = 'http://127.0.0.1:8545'
    w3 = web3.Web3(web3.Web3.HTTPProvider(PROVIDER_HOST))

    transaction = {
        'from': a.address,
        'to': '0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512',
        'value': 0,
        'nonce': w3.eth.get_transaction_count(a.address),
        'data': eth_fn('transfer(address,uint256)', ['0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512', 10**19]),
        'gas': 100000,
        'maxFeePerGas': 1000000000,
        'maxPriorityFeePerGas': 0,
        'chainId': 31337
    }

    signed = w3.eth.account.sign_transaction(transaction, a.key)
    tx_hash = w3.eth.send_raw_transaction(signed.rawTransaction)

To install, simple type:

    pip install eth-fn

Hope you like it!


            

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    "description": "# eth-fn\n\nIn web3py, to call a function od a smart contract, it requires to include long ABI information.\n\nhttps://web3py.readthedocs.io/en/stable/web3.contract.html\n\nInstead, we can do similiar with `eth_fn`:\n\n    import web3\n    import eth_account\n\n    from eth_fn import eth_fn\n\n    a = eth_account.Account.from_key('0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80')\n    print(a.address)\n\n    PROVIDER_HOST = 'http://127.0.0.1:8545'\n    w3 = web3.Web3(web3.Web3.HTTPProvider(PROVIDER_HOST))\n\n    transaction = {\n        'from': a.address,\n        'to': '0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512',\n        'value': 0,\n        'nonce': w3.eth.get_transaction_count(a.address),\n        'data': eth_fn('transfer(address,uint256)', ['0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512', 10**19]),\n        'gas': 100000,\n        'maxFeePerGas': 1000000000,\n        'maxPriorityFeePerGas': 0,\n        'chainId': 31337\n    }\n\n    signed = w3.eth.account.sign_transaction(transaction, a.key)\n    tx_hash = w3.eth.send_raw_transaction(signed.rawTransaction)\n\nTo install, simple type:\n\n    pip install eth-fn\n\nHope you like it!\n\n",
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