61 lines
2.2 KiB
Rust
61 lines
2.2 KiB
Rust
#[tokio::test]
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#[cfg(not(feature = "celo"))]
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async fn can_stack_middlewares() {
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use ethers_core::{types::TransactionRequest, utils::Ganache};
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use ethers_middleware::{
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gas_escalator::{Frequency, GasEscalatorMiddleware, GeometricGasPrice},
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gas_oracle::{GasCategory, GasNow, GasOracleMiddleware},
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nonce_manager::NonceManagerMiddleware,
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signer::SignerMiddleware,
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};
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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;
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let ganache = Ganache::new().block_time(5u64).spawn();
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let gas_oracle = GasNow::new().category(GasCategory::SafeLow);
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let signer: LocalWallet = ganache.keys()[0].clone().into();
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let address = signer.address();
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// the base provider
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let provider = Provider::<Http>::try_from(ganache.endpoint()).unwrap();
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let provider_clone = provider.clone();
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// the Gas Price escalator middleware is the first middleware above the provider,
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// so that it receives the transaction last, after all the other middleware
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// have modified it accordingly
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let escalator = GeometricGasPrice::new(1.125, 60u64, None::<u64>);
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let provider = GasEscalatorMiddleware::new(provider, escalator, Frequency::PerBlock);
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// The gas price middleware MUST be below the signing middleware for things to work
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let provider = GasOracleMiddleware::new(provider, gas_oracle);
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// The signing middleware signs txs
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let provider = SignerMiddleware::new(provider, signer);
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// The nonce manager middleware MUST be above the signing middleware so that it overrides
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// the nonce and the signer does not make any eth_getTransaction count calls
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let provider = NonceManagerMiddleware::new(provider, address);
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let tx = TransactionRequest::new();
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let mut tx_hash = None;
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for _ in 0..10 {
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tx_hash = Some(provider.send_transaction(tx.clone(), None).await.unwrap());
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dbg!(
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provider
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.get_transaction(tx_hash.unwrap())
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.await
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.unwrap()
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.unwrap()
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.gas_price
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);
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}
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let receipt = provider_clone
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.pending_transaction(tx_hash.unwrap())
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.await
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.unwrap();
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dbg!(receipt);
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}
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