70 lines
2.5 KiB
Rust
70 lines
2.5 KiB
Rust
use ethers::{
|
|
contract::{abigen, ContractFactory},
|
|
core::utils::Anvil,
|
|
middleware::SignerMiddleware,
|
|
providers::{Http, Provider},
|
|
signers::{LocalWallet, Signer},
|
|
solc::Solc,
|
|
};
|
|
use eyre::Result;
|
|
use std::{convert::TryFrom, path::Path, sync::Arc, time::Duration};
|
|
|
|
// Generate the type-safe contract bindings by providing the ABI
|
|
// definition
|
|
abigen!(
|
|
SimpleContract,
|
|
"./examples/contracts/examples/abi/contract_abi.json",
|
|
event_derives(serde::Deserialize, serde::Serialize)
|
|
);
|
|
|
|
#[tokio::main]
|
|
async fn main() -> Result<()> {
|
|
// 1. compile the contract (note this requires that you are inside the `examples` directory) and
|
|
// launch anvil
|
|
let anvil = Anvil::new().spawn();
|
|
|
|
// set the path to the contract, `CARGO_MANIFEST_DIR` points to the directory containing the
|
|
// manifest of `example/contracts`. which will be `../` relative to this file
|
|
let source = Path::new(&env!("CARGO_MANIFEST_DIR")).join("examples/contracts/contract.sol");
|
|
let compiled = Solc::default().compile_source(source).expect("Could not compile contracts");
|
|
let (abi, bytecode, _runtime_bytecode) =
|
|
compiled.find("SimpleStorage").expect("could not find contract").into_parts_or_default();
|
|
|
|
// 2. instantiate our wallet
|
|
let wallet: LocalWallet = anvil.keys()[0].clone().into();
|
|
|
|
// 3. connect to the network
|
|
let provider =
|
|
Provider::<Http>::try_from(anvil.endpoint())?.interval(Duration::from_millis(10u64));
|
|
|
|
// 4. instantiate the client with the wallet
|
|
let client = SignerMiddleware::new(provider, wallet.with_chain_id(anvil.chain_id()));
|
|
let client = Arc::new(client);
|
|
|
|
// 5. create a factory which will be used to deploy instances of the contract
|
|
let factory = ContractFactory::new(abi, bytecode, client.clone());
|
|
|
|
// 6. deploy it with the constructor arguments
|
|
let contract = factory.deploy("initial value".to_string())?.send().await?;
|
|
|
|
// 7. get the contract's address
|
|
let addr = contract.address();
|
|
|
|
// 8. instantiate the contract
|
|
let contract = SimpleContract::new(addr, client.clone());
|
|
|
|
// 9. call the `setValue` method
|
|
// (first `await` returns a PendingTransaction, second one waits for it to be mined)
|
|
let _receipt = contract.set_value("hi".to_owned()).send().await?.await?;
|
|
|
|
// 10. get all events
|
|
let logs = contract.value_changed_filter().from_block(0u64).query().await?;
|
|
|
|
// 11. get the new value
|
|
let value = contract.get_value().call().await?;
|
|
|
|
println!("Value: {value}. Logs: {}", serde_json::to_string(&logs)?);
|
|
|
|
Ok(())
|
|
}
|