35 lines
1.1 KiB
Rust
35 lines
1.1 KiB
Rust
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//! Example usage for the `QuorumProvider` that requests multiple backends and only returns
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//! a value if the configured `Quorum` was reached.
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use ethers::{prelude::*, utils::Ganache};
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use std::str::FromStr;
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use std::time::Duration;
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#[tokio::main]
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async fn main() -> anyhow::Result<()> {
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let ganache = Ganache::new().spawn();
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// create a quorum provider with some providers
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let quorum = QuorumProvider::dyn_rpc()
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.add_provider(WeightedProvider::new(Box::new(Http::from_str(
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&ganache.endpoint(),
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)?)))
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.add_provider(WeightedProvider::with_weight(
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Box::new(Ws::connect(ganache.ws_endpoint()).await?),
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2,
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))
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.add_provider(WeightedProvider::with_weight(
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Box::new(Ws::connect(ganache.ws_endpoint()).await?),
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2,
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))
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// the quorum provider will yield the response if >50% of the weighted inner provider returned the same value
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.quorum(Quorum::Majority)
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.build();
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let provider = Provider::quorum(quorum).interval(Duration::from_millis(10u64));
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dbg!(provider.get_accounts().await?);
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Ok(())
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}
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