ethers-rs/ethers-providers
Meet Mangukiya cde52c7c20
fix(core/TypedTransaction): eip1559 gas price should be max_fee_per_gas (#1062)
* fix(core/TypedTransaction): eip1559 gas price should be max_fee_per_gas

* fix tests

* tests(nonce_manager): reduce flakiness
2022-03-19 09:41:03 -07:00
..
src fix(core/TypedTransaction): eip1559 gas price should be max_fee_per_gas (#1062) 2022-03-19 09:41:03 -07:00
tests fix(core): check against ethers internal crate names (#1060) 2022-03-17 15:14:53 -07:00
Cargo.toml chore(deps): bump reqwest from 0.11.9 to 0.11.10 (#1031) 2022-03-15 02:16:53 -07:00
README.md Add ENS avatar and TXT records resolution (#889) 2022-02-16 16:25:41 +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);

/// Lookup ENS field
let url = "https://vitalik.ca".to_string();
let resolved_url = provider.resolve_field(name, "url").await?;
assert_eq!(url, resolved_url);

/// Lookup and resolve ENS avatar
let avatar = "https://ipfs.io/ipfs/QmSP4nq9fnN9dAiCj42ug9Wa79rqmQerZXZch82VqpiH7U/image.gif".to_string();
let resolved_avatar = provider.resolve_avatar(name).await?;
assert_eq!(avatar, resolved_avatar.to_string());
# Ok(())
# }