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SnapshotManifest

reth_cli_commands::download::manifest

Struct SnapshotManifest 

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pub struct SnapshotManifest {
    pub block: u64,
    pub chain_id: u64,
    pub storage_version: u64,
    pub timestamp: u64,
    pub base_url: Option<String>,
    pub reth_version: Option<String>,
    pub components: BTreeMap<String, ComponentManifest>,
    pub extensions: BTreeMap<String, Value>,
}
Expand description

A snapshot manifest describes available components for a snapshot at a given block height.

Each component is either a single archive (state) or a set of chunked archives (static file segments like transactions, receipts, etc). Chunked components use blocks_per_file to define the block range per archive, matching reth’s static file segment boundaries.

Archive paths are resolved relative to SnapshotManifest::base_url via URL joining. Single archives use SingleArchive::file; chunked archives default to {component}-{start_block}-{end_block}.tar.zst, or use ChunkedArchive::chunk_files when present so publishers can place finalized and tip chunks under different prefixes, or reference an earlier snapshot’s archives by absolute URL:

base_url = https://example.com/mainnet
  static_files/transactions-0-499999.tar.zst
  1700000/transactions-500000-999999.tar.zst
  1700000/state.tar.zst

Fields§

§block: u64

Block number this snapshot was taken at.

§chain_id: u64

Chain ID.

§storage_version: u64

Storage version (1 = legacy, 2 = current).

§timestamp: u64

Timestamp when the snapshot was created (unix seconds).

§base_url: Option<String>

Base URL for archive downloads. Component archive URLs are relative to this.

When omitted, downloaders should derive the base URL from the manifest URL.

§reth_version: Option<String>

Reth version that produced this snapshot.

§components: BTreeMap<String, ComponentManifest>

Available snapshot components.

§extensions: BTreeMap<String, Value>

Chain-specific manifest fields not interpreted by Reth.

Extensions are retained so downstream commands can consume snapshot metadata without refetching or reparsing the manifest selected by Reth.

Implementations§

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impl SnapshotManifest

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pub fn component(&self, ty: SnapshotComponentType) -> Option<&ComponentManifest>

Look up a component by type.

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pub fn total_size(&self, types: &[SnapshotComponentType]) -> u64

Returns the total download size for the given set of component types.

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pub fn archive_urls(&self, ty: SnapshotComponentType) -> Vec<String>

Returns all archive URLs for a given component type.

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pub fn archive_urls_for_distance( &self, ty: SnapshotComponentType, distance: Option<u64>, ) -> Vec<String>

Returns archive URLs for a component, limited to chunks covering at least distance blocks ending at Self::block. Returns all URLs if distance is None (All mode).

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pub fn snapshot_archives_for_distance( &self, ty: SnapshotComponentType, distance: Option<u64>, ) -> Vec<SnapshotArchive>

Returns concrete snapshot archives for a component, optionally limited to a distance ending at Self::block.

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pub fn validate_output_paths(&self) -> Result<()>

Fails if any output file path in the manifest is not a plain relative path.

Output paths come from an untrusted manifest, so this is checked before any archive is planned.

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pub fn size_for_distance( &self, ty: SnapshotComponentType, distance: Option<u64>, ) -> u64

Returns the exact download size for a component given a distance ending at Self::block.

For single archives, returns the full size. For chunked archives, sums the sizes of the selected tail chunks from ChunkedArchive::chunk_sizes.

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pub fn output_size_for_distance( &self, ty: SnapshotComponentType, distance: Option<u64>, ) -> u64

Returns the exact extracted plain-output size for a component given a distance ending at Self::block.

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pub fn chunks_for_distance( &self, ty: SnapshotComponentType, distance: Option<u64>, ) -> u64

Returns the number of chunks that would be downloaded for a distance ending at Self::block.

Trait Implementations§

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impl Clone for SnapshotManifest

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for SnapshotManifest

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for SnapshotManifest

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for SnapshotManifest

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more

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Size: 128 bytes