GRPC Ledger data fetcher. More...

#include <LedgerFetcher.hpp>

Public Types
using	OptionalGetLedgerResponseType = typename LoadBalancerType::OptionalGetLedgerResponseType

Public Member Functions
	LedgerFetcher (std::shared_ptr< BackendInterface > backend, std::shared_ptr< LoadBalancerType > balancer)
	Create an instance of the fetcher.

OptionalGetLedgerResponseType	fetchData (uint32_t sequence)
	Extract data for a particular ledger from an ETL source.

OptionalGetLedgerResponseType	fetchDataAndDiff (uint32_t sequence)
	Extract diff data for a particular ledger from an ETL source.

Detailed Description

template<typename LoadBalancerType>
class etl::impl::LedgerFetcher< LoadBalancerType >

GRPC Ledger data fetcher.

Member Function Documentation

◆ fetchData()

template<typename LoadBalancerType >

OptionalGetLedgerResponseType etl::impl::LedgerFetcher< LoadBalancerType >::fetchData ( uint32_t sequence )

inlinenodiscard

Extract data for a particular ledger from an ETL source.

This function continously tries to extract the specified ledger (using all available ETL sources) until the extraction succeeds, or the server shuts down.

Parameters

sequence sequence of the ledger to extract

Returns: Ledger header and transaction+metadata blobs; Empty optional if the server is shutting down

◆ fetchDataAndDiff()

template<typename LoadBalancerType >

OptionalGetLedgerResponseType etl::impl::LedgerFetcher< LoadBalancerType >::fetchDataAndDiff ( uint32_t sequence )

inlinenodiscard

Extract diff data for a particular ledger from an ETL source.