## `superchain-derive`
_Notice: Requires an `std` environment._
An online, alloy-backed derivation pipeline, built on [`kona-derive`][d].
## Usage
The easiest way to use `superchain-derive-alloy` to construct a derivation pipeline
backed by [alloy][a] providers is to use the exported `new_online_pipeline` method.
```rust
use std::sync::Arc;
use op_alloy_protocol::BlockInfo;
use op_alloy_genesis::RollupConfig;
use superchain_derive::prelude::*;
let rollup_config = Arc::new(RollupConfig::default());
let chain_provider =
AlloyChainProvider::new_http("http://127.0.0.1:8545".try_into().unwrap());
let l2_chain_provider = AlloyL2ChainProvider::new_http(
"http://127.0.0.1:9545".try_into().unwrap(),
rollup_config.clone(),
);
let beacon_client = OnlineBeaconClient::new_http("http://127.0.0.1:5555".into());
let blob_provider = OnlineBlobProvider::new(beacon_client, None, None);
let blob_provider = OnlineBlobProviderWithFallback::new(blob_provider, None);
let dap_source =
EthereumDataSource::new_from_parts(chain_provider.clone(), blob_provider, &rollup_config);
let builder = StatefulAttributesBuilder::new(
rollup_config.clone(),
l2_chain_provider.clone(),
chain_provider.clone(),
);
let origin = BlockInfo::default();
let pipeline = new_online_pipeline(
rollup_config.clone(),
chain_provider,
dap_source,
l2_chain_provider,
builder,
origin,
);
assert_eq!(pipeline.rollup_config, rollup_config);
assert_eq!(pipeline.origin(), Some(origin));
```
## Features
The most up-to-date feature list will be available on the
[docs.rs `Feature Flags` tab][ff] of the `superchain-derive-alloy` crate.
Some features include the following.
- `test-utils`: Test utilities for downstream libraries.
[a]: https://github.com/alloy-rs/alloy
[d]: https://crates.io/crates/kona-derive
[ff]: https://docs.rs/crate/kona-derive-alloy/latest/features