2 releases
0.1.1 | Dec 9, 2020 |
---|---|
0.1.0 | Dec 8, 2020 |
#133 in #transfer
27KB
641 lines
erc20
Rust ERC20 parser
This project intends to parse the Ethereum transactions from web3 into an abstraction that makes generic dealing with Ethereum or ERC20 transfers.
Available at https://crates.io/crates/erc20
Code examples
Parsing a transfer
let serialized_str = "a9059cbb0000000000000000000000006748f50f686bfbca6fe8ad62b22228b87f31ff2b00000000000000000000000000000000000000000000003635c9adc5dea00000";
let transaction = Transaction {
hash: string_to_h256("43a5d6d13b6a9dca381e3f4b4677a4b9e5d9f80d1a5b6cfa2b1404fab733bcee".to_string()).unwrap(),
nonce: Default::default(),
block_hash: None,
block_number: None,
transaction_index: None,
from: H160::random(),
to: Some(H160::random()),
value: Default::default(),
gas_price: Default::default(),
gas: Default::default(),
input: Bytes(hex::decode(serialized_str).unwrap()),
raw: None,
};
let resp: Result<TransactionAndTransferType, ERC20Error> = transaction.clone().try_into();
Identifying an ERC20 contract address
let tusd_address = H160::from_str("0000000000085d4780B73119b644AE5ecd22b376").unwrap();
assert_eq!("0x0000000000085d4780b73119b644ae5ecd22b376".to_string(), format!("{:?}", tusd_address));
let contract_address: ContractAddress = tusd_address.into();
assert_eq!(ContractAddress::TUSD, contract_address);
// let tusd_from_contract: H160 = contract_address.into();
// assert_eq!(tusd_address, tusd_from_contract);
References
Dependencies
~10MB
~146K SLoC