Struct OnlineBlobProviderWithFallback

pub struct OnlineBlobProviderWithFallback<B: BeaconClient, F: BlobSidecarProvider> { /* private fields */ }

An online blob provider that optionally falls back to a secondary provider if the primary fails to fetch blob sidecars.

This is useful for scenarios where blobs have been evicted from the primary provider’s blob store and need to be fetched from a remote archive API. The default eviction policy on Ethereum is to keep blobs for 18 days.

Blob storage APIs are expected to implement the BlobSidecarProvider trait. One example can be found at https://github.com/base-org/blob-archiver

Implementations

impl<B: BeaconClient, F: BlobSidecarProvider> OnlineBlobProviderWithFallback<B, F>

pub const fn new(primary: OnlineBlobProvider<B>, fallback: Option<F>) -> Self

Creates a new instance of the OnlineBlobProviderWithFallback with the specified primary and fallback providers.

Trait Implementations

impl<B, F> BlobProvider for OnlineBlobProviderWithFallback<B, F>

where B: BeaconClient + Send + Sync, F: BlobSidecarProvider + Send + Sync,

fn get_blobs<'life0, 'life1, 'life2, 'async_trait>( &'life0 mut self, block_ref: &'life1 BlockInfo, blob_hashes: &'life2 [IndexedBlobHash], ) -> Pin<Box<dyn Future<Output = Result<Vec<Box<Blob>>, BlobProviderError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Fetches blob sidecars that were confirmed in the specified L1 block with the given indexed hashes. The blobs are validated for their index and hashes using the specified IndexedBlobHash.

type Error = BlobProviderError

The error type for the BlobProvider.

impl<B: Clone + BeaconClient, F: Clone + BlobSidecarProvider> Clone for OnlineBlobProviderWithFallback<B, F>

fn clone(&self) -> OnlineBlobProviderWithFallback<B, F>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<B: Debug + BeaconClient, F: Debug + BlobSidecarProvider> Debug for OnlineBlobProviderWithFallback<B, F>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<B: BeaconClient, F: BlobSidecarProvider> From<OnlineBlobProviderBuilder<B, F>> for OnlineBlobProviderWithFallback<B, F>

fn from(builder: OnlineBlobProviderBuilder<B, F>) -> Self

Converts to this type from the input type.