59 releases (4 breaking)
0.5.18 | Nov 16, 2023 |
---|---|
0.5.13 | Oct 31, 2023 |
0.3.5 | Jul 31, 2023 |
223 downloads per month
1MB
21K
SLoC
switchboard-evm
A Rust library to interact with Switchboard on EVM based chains.
Typedocs: docs.rs/switchboard-evm
EVM SDK: github.com/switchboard-xyz/evm-sdk
Switchboard Documentation: docs.switchboard.xyz
Install
Run the following Cargo command in your project directory:
cargo add switchboard-evm
Or add the following line to your Cargo.toml:
[dependencies]
switchboard-evm = "0.5.15"
Usage
Here's an example of using the EvmFunctionRunner inside a Switchboard Function:
/// Required
static CLIENT_URL: &str = "https://goerli-rollup.arbitrum.io/rpc";
// Generate your contract's ABI
abigen!(Receiver, r#"[ function callback(uint256) ]"#,);
#[derive(EthAbiType, EthAbiCodec, Default, Debug, Clone)]
pub struct Params {
callback: Address,
}
#[sb_function(expiration_seconds = 120, gas_limit = 5_500_000)]
async fn sb_function(client: SbMiddleware, _call_id: Address, params: Params) -> SbResult {
let receiver_contract = Receiver::new(params.callback, client.into());
let mut random = [0u8; 32];
Gramine::read_rand(random.as_mut_slice()).map_err(|_| SbError::SgxRandReadFail)?;
Ok(vec![receiver_contract.callback(U256::from_little_endian(&random))])
}
#[sb_error]
pub enum SbError {
SgxRandReadFail
}
Dependencies
~33–53MB
~1M SLoC