ethers-rs/ethers-providers
Georgios Konstantopoulos bb3a2fd27c
release: 0.6.0 (#611)
* release(core): 0.6.0

* release(providers): 0.6.0

* release(contract-abigen): 0.6.0

* release(contract-derive): 0.6.0

* release(derive-eip712): 0.2.0

* release(ethers-solc): 0.1.0

* release(contract): 0.6.0

* release(etherscan): 0.2.0

* release(signers): 0.6.0

* release(middleware): 0.6.0

* chore: update dev deps

* refactor(core): move docs to readme

* refactor(contract): move docs to readme

* refactor(providers): move docs to readme

* chore: bump ethers cargo toml

* refactor(signers): move docs to readme

* refactor(middleware): move docs to readme

* fix(ethers): adjust re-exports to allow searching internal packages

* docs: fix broken links

we cannot use relative crate imports because the readmes
are also imported by the parent crate

* alias readmes to be accessible to ethers crate
2021-11-23 21:23:12 +02:00
..
src release: 0.6.0 (#611) 2021-11-23 21:23:12 +02:00
tests chore: add rustfmt.toml (#537) 2021-10-29 14:29:35 +02:00
Cargo.toml release: 0.6.0 (#611) 2021-11-23 21:23:12 +02:00
README.md release: 0.6.0 (#611) 2021-11-23 21:23:12 +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/c60b0bb42f8a4c6481ecd229eddaca27"
)?;

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/c60b0bb42f8a4c6481ecd229eddaca27"
# )?;
// 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(())
# }