Crate ethers_providers[−][src]
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
FilterWatcher | Streams data from an installed filter via |
Http | A low-level JSON-RPC Client over HTTP. |
MockProvider | Mock transport used in test environments. |
PendingTransaction | A pending transaction is a transaction which has been submitted but is not yet mined.
|
Provider | An abstract provider for interacting with the Ethereum JSON RPC
API. Must be instantiated
with a data transport which implements the |
SubscriptionStream | Streams data from an installed filter via |
Ws | A JSON-RPC Client over Websockets. |
Enums
FilterKind | Types of filters supported by the JSON-RPC. |
MockError | Errors for the |
ProviderError | An error thrown when making a call to the provider |
Constants
DEFAULT_POLL_INTERVAL | The default polling interval for filters and pending transactions |
Traits
FromErr | |
JsonRpcClient | Trait which must be implemented by data transports to be used with the Ethereum JSON-RPC provider. |
Middleware | A middleware allows customizing requests send and received from an ethereum node. |
PubsubClient | A transport implementation supporting pub sub subscriptions. |
StreamExt | An extension trait for |
Functions
interval |