37 lines
1.4 KiB
Rust
37 lines
1.4 KiB
Rust
use ethers::{prelude::*, utils::Anvil};
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use eyre::Result;
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use std::{convert::TryFrom, sync::Arc, time::Duration};
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// Generate the type-safe contract bindings by providing the json artifact
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// *Note*: this requires a `bytecode` and `abi` object in the `greeter.json` artifact:
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// `{"abi": [..], "bin": "..."}` or `{"abi": [..], "bytecode": {"object": "..."}}`
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// this will embedd the bytecode in a variable `GREETER_BYTECODE`
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abigen!(Greeter, "ethers-contract/tests/solidity-contracts/greeter.json",);
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#[tokio::main]
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async fn main() -> Result<()> {
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// 1. compile the contract (note this requires that you are inside the `examples` directory) and
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// launch anvil
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let anvil = Anvil::new().spawn();
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// 2. instantiate our wallet
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let wallet: LocalWallet = anvil.keys()[0].clone().into();
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// 3. connect to the network
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let provider =
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Provider::<Http>::try_from(anvil.endpoint())?.interval(Duration::from_millis(10u64));
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// 4. instantiate the client with the wallet
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let client = Arc::new(SignerMiddleware::new(provider, wallet.with_chain_id(anvil.chain_id())));
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// 5. deploy contract
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let greeter_contract =
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Greeter::deploy(client, "Hello World!".to_string()).unwrap().send().await.unwrap();
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// 6. call contract function
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let greeting = greeter_contract.greet().call().await.unwrap();
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assert_eq!("Hello World!", greeting);
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Ok(())
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}
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