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BlockEncodedExtrinsicsQuery

avail_rust_client::block::encoded

Struct BlockEncodedExtrinsicsQuery 

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pub struct BlockEncodedExtrinsicsQuery { /* private fields */ }
Expand description

View of block extrinsics as raw payloads with associated metadata.

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impl BlockEncodedExtrinsicsQuery

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pub fn new(client: Client, block_id: HashStringNumber) -> Self

Builds a raw extrinsic view for the specified block.

§Parameters
  • client: RPC client used to fetch encoded extrinsics.
  • block_id: Identifier convertible into HashStringNumber.
§Returns
  • Self: Encoded-extrinsic helper scoped to the provided block.
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pub async fn get( &self, extrinsic_id: impl Into<HashStringNumber>, ) -> Result<Option<BlockEncodedExtrinsic>, Error>

Fetches a specific extrinsic and returns it in encoded form.

§Parameters
  • extrinsic_id: Hash, index, or string identifying the extrinsic to fetch.
§Returns
  • Ok(Some(EncodedExtrinsic)): Matching encoded extrinsic with metadata.
  • Ok(None): No extrinsic matched the identifier.
  • Err(Error): Identifier decoding or the RPC call failed.
§Side Effects
  • Performs an RPC call and may retry according to the retry policy.
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pub async fn first( &self, opts: Options, ) -> Result<Option<BlockEncodedExtrinsic>, Error>

Returns the first encoded extrinsic matching the supplied filters.

§Parameters
  • opts: Filters describing which extrinsic to fetch.
§Returns
  • Ok(Some(EncodedExtrinsic)): First matching extrinsic with metadata and payload.
  • Ok(None): No extrinsic satisfied the filters.
  • Err(Error): Resolving the block identifier, performing the RPC call, or retrieving the payload failed.
§Side Effects
  • Performs an RPC call and may retry according to the retry policy.
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pub async fn last( &self, opts: Options, ) -> Result<Option<BlockEncodedExtrinsic>, Error>

Returns the last encoded extrinsic matching the supplied filters.

§Parameters
  • opts: Filters describing which extrinsic to fetch.
§Returns
  • Ok(Some(EncodedExtrinsic)): Final matching extrinsic with metadata and payload.
  • Ok(None): No extrinsic satisfied the filters.
  • Err(Error): Resolving the block identifier, performing the RPC call, or retrieving the payload failed.
§Side Effects
  • Performs an RPC call and may retry according to the retry policy.
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pub async fn all( &self, opts: Options, ) -> Result<Vec<BlockEncodedExtrinsic>, Error>

Returns all encoded extrinsics matching the supplied filters.

§Parameters
  • opts: Filters describing which extrinsics to fetch.
§Returns
  • Ok(Vec<EncodedExtrinsic>): Zero or more matching extrinsics.
  • Err(Error): Resolving the block identifier, performing the RPC call, or retrieving a payload failed.
§Side Effects
  • Performs an RPC call and may retry according to the retry policy.
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pub async fn count(&self, opts: Options) -> Result<usize, Error>

Counts matching extrinsics without downloading their payloads.

§Parameters
  • opts: Filters describing which extrinsics to count.
§Returns
  • Ok(usize): Number of matching extrinsics.
  • Err(Error): The RPC request failed.
§Side Effects
  • Performs an RPC call and may retry according to the retry policy.
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pub async fn exists(&self, opts: Options) -> Result<bool, Error>

Reports whether any encoded extrinsic matches the supplied filters.

§Parameters
  • opts: Filters describing which extrinsics to test.
§Returns
  • Ok(true): At least one matching extrinsic exists.
  • Ok(false): No extrinsics matched the filters.
  • Err(Error): The RPC request failed.
§Side Effects
  • Performs an RPC call via Self::count and may retry according to the retry policy.
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pub fn set_retry_on_error(&mut self, value: Option<bool>)

Overrides the retry behaviour for future encoded-extrinsic lookups.

§Parameters
  • value: Some(true) to force retries, Some(false) to disable retries, None to inherit the client default.
§Returns
  • (): The override is stored for subsequent operations.
§Side Effects
  • Updates the internal retry setting used by follow-up RPC calls.
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pub fn should_retry_on_error(&self) -> bool

Reports whether encoded-extrinsic lookups retry after RPC errors.

§Returns
  • true: Retries are enabled either explicitly or via the client default.
  • false: Retries are disabled.

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