Crate ethers_providers[−][src]

Expand description

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;

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)?);

Websockets

The crate has support for WebSockets via Tokio.

let ws = Ws::connect("ws://localhost:8545").await?;

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.

// 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);

Structs

FeeHistory

FilterWatcher

Streams data from an installed filter via eth_getFilterChanges

Http

A low-level JSON-RPC Client over HTTP.

Ipc

Unix Domain Sockets (IPC) transport.

MockProvider

Mock transport used in test environments.

PendingTransaction

A pending transaction is a transaction which has been submitted but is not yet mined. await’ing on a pending transaction will resolve to a transaction receipt once the transaction has enough confirmations. The default number of confirmations is 1, but may be adjusted with the confirmations method. If the transaction does not have enough confirmations or is not mined, the future will stay in the pending state.

Provider

An abstract provider for interacting with the Ethereum JSON RPC API. Must be instantiated with a data transport which implements the JsonRpcClient trait (e.g. HTTP, Websockets etc.)

QuorumProvider

A provider that bundles multiple providers and only returns a value to the caller once the quorum has been reached.

SubscriptionStream

Streams data from an installed filter via eth_subscribe

TransactionStream

Drains a stream of transaction hashes and yields entire Transaction.

WeightedProvider

The configuration of a provider for the QuorumProvider

Ws

A JSON-RPC Client over Websockets.