Struct Cast

pub struct Cast<P> {
    pub(crate) provider: P,
}

Fields

provider: P

Implementations

impl<P: Provider<AnyNetwork>> Cast<P>

pub fn new(provider: P) -> Self

Creates a new Cast instance from the provided client

Example

use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);

pub async fn call( &self, req: &WithOtherFields<TransactionRequest>, func: Option<&Function>, block: Option<BlockId>, ) -> Result<String>

Makes a read-only call to the specified address

Example

use alloy_primitives::{Address, U256, Bytes};
use alloy_rpc_types::{TransactionRequest};
use alloy_serde::WithOtherFields;
use cast::Cast;
use alloy_provider::{RootProvider, ProviderBuilder, network::AnyNetwork};
use std::str::FromStr;
use alloy_sol_types::{sol, SolCall};

sol!(
    function greeting(uint256 i) public returns (string);
);

let alloy_provider = ProviderBuilder::<_,_, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;;
let to = Address::from_str("0xB3C95ff08316fb2F2e3E52Ee82F8e7b605Aa1304")?;
let greeting = greetingCall { i: U256::from(5) }.abi_encode();
let bytes = Bytes::from_iter(greeting.iter());
let tx = TransactionRequest::default().to(to).input(bytes.into());
let tx = WithOtherFields::new(tx);
let cast = Cast::new(alloy_provider);
let data = cast.call(&tx, None, None).await?;
println!("{}", data);

pub async fn access_list( &self, req: &WithOtherFields<TransactionRequest>, block: Option<BlockId>, ) -> Result<String>

Generates an access list for the specified transaction

Example

use cast::{Cast};
use alloy_primitives::{Address, U256, Bytes};
use alloy_rpc_types::{TransactionRequest};
use alloy_serde::WithOtherFields;
use alloy_provider::{RootProvider, ProviderBuilder, network::AnyNetwork};
use std::str::FromStr;
use alloy_sol_types::{sol, SolCall};

sol!(
    function greeting(uint256 i) public returns (string);
);

let provider = ProviderBuilder::<_,_, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;;
let to = Address::from_str("0xB3C95ff08316fb2F2e3E52Ee82F8e7b605Aa1304")?;
let greeting = greetingCall { i: U256::from(5) }.abi_encode();
let bytes = Bytes::from_iter(greeting.iter());
let tx = TransactionRequest::default().to(to).input(bytes.into());
let tx = WithOtherFields::new(tx);
let cast = Cast::new(&provider);
let access_list = cast.access_list(&tx, None).await?;
println!("{}", access_list);

pub async fn balance( &self, who: Address, block: Option<BlockId>, ) -> Result<U256>

pub async fn send( &self, tx: WithOtherFields<TransactionRequest>, ) -> Result<PendingTransactionBuilder<AnyNetwork>>

Sends a transaction to the specified address

Example

use cast::{Cast};
use alloy_primitives::{Address, U256, Bytes};
use alloy_serde::WithOtherFields;
use alloy_rpc_types::{TransactionRequest};
use alloy_provider::{RootProvider, ProviderBuilder, network::AnyNetwork};
use std::str::FromStr;
use alloy_sol_types::{sol, SolCall};

sol!(
    function greet(string greeting) public;
);

let provider = ProviderBuilder::<_,_, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;;
let from = Address::from_str("0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045")?;
let to = Address::from_str("0xB3C95ff08316fb2F2e3E52Ee82F8e7b605Aa1304")?;
let greeting = greetCall { greeting: "hello".to_string() }.abi_encode();
let bytes = Bytes::from_iter(greeting.iter());
let gas = U256::from_str("200000").unwrap();
let value = U256::from_str("1").unwrap();
let nonce = U256::from_str("1").unwrap();
let tx = TransactionRequest::default().to(to).input(bytes.into()).from(from);
let tx = WithOtherFields::new(tx);
let cast = Cast::new(provider);
let data = cast.send(tx).await?;
println!("{:#?}", data);

pub async fn publish( &self, raw_tx: String, ) -> Result<PendingTransactionBuilder<AnyNetwork>>

Publishes a raw transaction to the network

Example

use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);
let res = cast.publish("0x1234".to_string()).await?;
println!("{:?}", res);

pub async fn block<B: Into<BlockId>>( &self, block: B, full: bool, field: Option<String>, ) -> Result<String>

Example

use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);
let block = cast.block(5, true, None).await?;
println!("{}", block);

pub(crate) async fn block_field_as_num<B: Into<BlockId>>( &self, block: B, field: String, ) -> Result<U256>

pub async fn base_fee<B: Into<BlockId>>(&self, block: B) -> Result<U256>

pub async fn age<B: Into<BlockId>>(&self, block: B) -> Result<String>

pub async fn timestamp<B: Into<BlockId>>(&self, block: B) -> Result<U256>

pub async fn chain(&self) -> Result<&str>

pub async fn chain_id(&self) -> Result<u64>

pub async fn block_number(&self) -> Result<u64>

pub async fn gas_price(&self) -> Result<u128>

pub async fn nonce(&self, who: Address, block: Option<BlockId>) -> Result<u64>

Example

use alloy_primitives::Address;
use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;
use std::str::FromStr;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);
let addr = Address::from_str("0x7eD52863829AB99354F3a0503A622e82AcD5F7d3")?;
let nonce = cast.nonce(addr, None).await?;
println!("{}", nonce);

pub async fn codehash( &self, who: Address, slots: Vec<B256>, block: Option<BlockId>, ) -> Result<String>

#Example

use alloy_primitives::{Address, FixedBytes};
use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;
use std::str::FromStr;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);
let addr = Address::from_str("0x7eD52863829AB99354F3a0503A622e82AcD5F7d3")?;
let slots = vec![FixedBytes::from_str("0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")?];
let codehash = cast.codehash(addr, slots, None).await?;
println!("{}", codehash);

pub async fn storage_root( &self, who: Address, slots: Vec<B256>, block: Option<BlockId>, ) -> Result<String>

#Example

use alloy_primitives::{Address, FixedBytes};
use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;
use std::str::FromStr;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);
let addr = Address::from_str("0x7eD52863829AB99354F3a0503A622e82AcD5F7d3")?;
let slots = vec![FixedBytes::from_str("0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")?];
let storage_root = cast.storage_root(addr, slots, None).await?;
println!("{}", storage_root);

pub async fn implementation( &self, who: Address, is_beacon: bool, block: Option<BlockId>, ) -> Result<String>

Example

use alloy_primitives::Address;
use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;
use std::str::FromStr;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);
let addr = Address::from_str("0x7eD52863829AB99354F3a0503A622e82AcD5F7d3")?;
let implementation = cast.implementation(addr, false, None).await?;
println!("{}", implementation);

pub async fn admin( &self, who: Address, block: Option<BlockId>, ) -> Result<String>

Example

use alloy_primitives::Address;
use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;
use std::str::FromStr;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);
let addr = Address::from_str("0x7eD52863829AB99354F3a0503A622e82AcD5F7d3")?;
let admin = cast.admin(addr, None).await?;
println!("{}", admin);

pub async fn compute_address( &self, address: Address, nonce: Option<u64>, ) -> Result<Address>

Example

use alloy_primitives::{Address, U256};
use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;
use std::str::FromStr;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);
let addr = Address::from_str("7eD52863829AB99354F3a0503A622e82AcD5F7d3")?;
let computed_address = cast.compute_address(addr, None).await?;
println!("Computed address for address {addr}: {computed_address}");

pub async fn code( &self, who: Address, block: Option<BlockId>, disassemble: bool, ) -> Result<String>

Example

use alloy_primitives::Address;
use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;
use std::str::FromStr;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);
let addr = Address::from_str("0x00000000219ab540356cbb839cbe05303d7705fa")?;
let code = cast.code(addr, None, false).await?;
println!("{}", code);

pub async fn codesize( &self, who: Address, block: Option<BlockId>, ) -> Result<String>

Example

use alloy_primitives::Address;
use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;
use std::str::FromStr;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);
let addr = Address::from_str("0x00000000219ab540356cbb839cbe05303d7705fa")?;
let codesize = cast.codesize(addr, None).await?;
println!("{}", codesize);

pub async fn transaction( &self, tx_hash: String, field: Option<String>, raw: bool, ) -> Result<String>

Example

use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);
let tx_hash = "0xf8d1713ea15a81482958fb7ddf884baee8d3bcc478c5f2f604e008dc788ee4fc";
let tx = cast.transaction(tx_hash.to_string(), None, false).await?;
println!("{}", tx);

pub async fn receipt( &self, tx_hash: String, field: Option<String>, confs: u64, timeout: Option<u64>, cast_async: bool, ) -> Result<String>

Example

use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);
let tx_hash = "0xf8d1713ea15a81482958fb7ddf884baee8d3bcc478c5f2f604e008dc788ee4fc";
let receipt = cast.receipt(tx_hash.to_string(), None, 1, None, false).await?;
println!("{}", receipt);

pub async fn rpc<V>(&self, method: &str, params: V) -> Result<String>

where V: RpcSend,

Perform a raw JSON-RPC request

Example

use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);
let result = cast
    .rpc("eth_getBalance", &["0xc94770007dda54cF92009BFF0dE90c06F603a09f", "latest"])
    .await?;
println!("{}", result);

pub async fn storage( &self, from: Address, slot: B256, block: Option<BlockId>, ) -> Result<String>

Returns the slot

Example

use alloy_primitives::{Address, B256};
use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use cast::Cast;
use std::str::FromStr;

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);
let addr = Address::from_str("0x00000000006c3852cbEf3e08E8dF289169EdE581")?;
let slot = B256::ZERO;
let storage = cast.storage(addr, slot, None).await?;
println!("{}", storage);

pub async fn filter_logs(&self, filter: Filter) -> Result<String>

pub async fn convert_block_number( &self, block: Option<BlockId>, ) -> Result<Option<BlockNumberOrTag>, Error>

Converts a block identifier into a block number.

If the block identifier is a block number, then this function returns the block number. If the block identifier is a block hash, then this function returns the block number of that block hash. If the block identifier is None, then this function returns None.

Example

use alloy_primitives::fixed_bytes;
use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use alloy_rpc_types::{BlockId, BlockNumberOrTag};
use cast::Cast;
use std::{convert::TryFrom, str::FromStr};

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("http://localhost:8545").await?;
let cast = Cast::new(provider);

let block_number = cast.convert_block_number(Some(BlockId::number(5))).await?;
assert_eq!(block_number, Some(BlockNumberOrTag::Number(5)));

let block_number = cast
    .convert_block_number(Some(BlockId::hash(fixed_bytes!(
        "0000000000000000000000000000000000000000000000000000000000001234"
    ))))
    .await?;
assert_eq!(block_number, Some(BlockNumberOrTag::Number(4660)));

let block_number = cast.convert_block_number(None).await?;
assert_eq!(block_number, None);

pub async fn subscribe( &self, filter: Filter, output: &mut dyn Write, ) -> Result<()>

Sets up a subscription to the given filter and writes the logs to the given output.

Example

use alloy_primitives::Address;
use alloy_provider::{network::AnyNetwork, ProviderBuilder, RootProvider};
use alloy_rpc_types::Filter;
use alloy_transport::BoxTransport;
use cast::Cast;
use std::{io, str::FromStr};

let provider =
    ProviderBuilder::<_, _, AnyNetwork>::default().on_builtin("wss://localhost:8545").await?;
let cast = Cast::new(provider);

let filter =
    Filter::new().address(Address::from_str("0x00000000006c3852cbEf3e08E8dF289169EdE581")?);
let mut output = io::stdout();
cast.subscribe(filter, &mut output).await?;

pub async fn erc20_balance( &self, token: Address, owner: Address, block: Option<BlockId>, ) -> Result<U256>

Layout

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.