ethers-rs/ethers-providers
wolflo 14551a90c1
fix(providers): PendingTransaction::log() missing deref (#886)
2022-02-09 08:48:03 +02:00
..
src fix(providers): PendingTransaction::log() missing deref (#886) 2022-02-09 08:48:03 +02:00
tests chore: remove broken celo test 2022-01-24 19:40:46 +02:00
Cargo.toml chore(deps): bump tracing from 0.1.29 to 0.1.30 (#862) 2022-02-04 10:09:02 +02:00
README.md Hide Infura API key from docs (#863) 2022-02-04 16:58:53 +02:00

README.md

Clients for interacting with Ethereum nodes

This crate provides asynchronous Ethereum JSON-RPC compliant clients.

For more documentation on the available calls, refer to the Provider struct.

Examples

use ethers_providers::{Provider, Http, Middleware};
use std::convert::TryFrom;

# async fn foo() -> Result<(), Box<dyn std::error::Error>> {
let provider = Provider::<Http>::try_from(
    "https://mainnet.infura.io/v3/YOUR_API_KEY"
)?;

let block = provider.get_block(100u64).await?;
println!("Got block: {}", serde_json::to_string(&block)?);

let code = provider.get_code("0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359", None).await?;
println!("Got code: {}", serde_json::to_string(&code)?);
# Ok(())
# }

Websockets

The crate has support for WebSockets via Tokio.

# async fn foo() -> Result<(), Box<dyn std::error::Error>> {
# use ethers_providers::Ws;
let ws = Ws::connect("ws://localhost:8545").await?;
# Ok(())
# }

Ethereum Name Service

The provider may also be used to resolve Ethereum Name Service (ENS) names to addresses (and vice versa). The default ENS address is mainnet and can be overriden by calling the ens method on the provider.

# use ethers_providers::{Provider, Http, Middleware};
# use std::convert::TryFrom;
# async fn foo() -> Result<(), Box<dyn std::error::Error>> {
# let provider = Provider::<Http>::try_from(
#     "https://mainnet.infura.io/v3/YOUR_API_KEY"
# )?;
// Resolve ENS name to Address
let name = "vitalik.eth";
let address = provider.resolve_name(name).await?;

// Lookup ENS name given Address
let resolved_name = provider.lookup_address(address).await?;
assert_eq!(name, resolved_name);
# Ok(())
# }