56 lines
1.9 KiB
Rust
56 lines
1.9 KiB
Rust
mod derive;
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use ethers_core::{
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abi::Abi,
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types::{Address, Bytes},
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};
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use ethers_contract::{Contract, ContractFactory, EthEvent};
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use ethers_core::utils::{GanacheInstance, Solc};
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use ethers_middleware::signer::SignerMiddleware;
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use ethers_providers::{Http, Middleware, Provider};
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use ethers_signers::LocalWallet;
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use std::{convert::TryFrom, sync::Arc, time::Duration};
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// Note: The `EthEvent` derive macro implements the necessary conversion between `Tokens` and
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// the struct
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#[derive(Clone, Debug, EthEvent)]
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pub struct ValueChanged {
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#[ethevent(indexed)]
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pub old_author: Address,
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#[ethevent(indexed)]
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pub new_author: Address,
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pub old_value: String,
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pub new_value: String,
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}
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/// compiles the given contract and returns the ABI and Bytecode
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pub fn compile_contract(name: &str, filename: &str) -> (Abi, Bytes) {
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let compiled = Solc::new(&format!("./tests/solidity-contracts/{}", filename))
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.build()
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.unwrap();
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let contract = compiled.get(name).expect("could not find contract");
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(contract.abi.clone(), contract.bytecode.clone())
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}
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type HttpWallet = SignerMiddleware<Provider<Http>, LocalWallet>;
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/// connects the private key to http://localhost:8545
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pub fn connect(ganache: &GanacheInstance, idx: usize) -> Arc<HttpWallet> {
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let provider = Provider::<Http>::try_from(ganache.endpoint())
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.unwrap()
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.interval(Duration::from_millis(10u64));
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let wallet: LocalWallet = ganache.keys()[idx].clone().into();
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Arc::new(SignerMiddleware::new(provider, wallet))
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}
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/// Launches a ganache instance and deploys the SimpleStorage contract
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pub async fn deploy<M: Middleware>(client: Arc<M>, abi: Abi, bytecode: Bytes) -> Contract<M> {
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let factory = ContractFactory::new(abi, bytecode, client);
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factory
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.deploy("initial value".to_string())
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.unwrap()
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.send()
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.await
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.unwrap()
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}
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