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56 lines
2.2 KiB
C++
56 lines
2.2 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of clio: https://github.com/XRPLF/clio
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Copyright (c) 2024, the clio developers.
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Permission to use, copy, modify, and distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#pragma once
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#include "data/Types.hpp"
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#include "feed/impl/SingleFeedBase.hpp"
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#include "rpc/BookChangesHelper.hpp"
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#include <boost/asio/io_context.hpp>
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#include <boost/json/serialize.hpp>
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#include <ripple/protocol/LedgerHeader.h>
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#include <vector>
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namespace feed::impl {
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/**
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* @brief Feed that publishes book changes. This feed will be published every ledger, even if there are no changes.
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* Example : {'type': 'bookChanges', 'ledger_index': 2647936, 'ledger_hash':
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* '0A5010342D8AAFABDCA58A68F6F588E1C6E58C21B63ED6CA8DB2478F58F3ECD5', 'ledger_time': 756395682, 'changes': []}
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*/
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struct BookChangesFeed : public SingleFeedBase {
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BookChangesFeed(boost::asio::io_context& ioContext) : SingleFeedBase(ioContext, "book_changes")
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{
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}
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/**
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* @brief Publishes the book changes.
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* @param lgrInfo The ledger header.
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* @param transactions The transactions that were included in the ledger.
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*/
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void
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pub(ripple::LedgerHeader const& lgrInfo, std::vector<data::TransactionAndMetadata> const& transactions) const
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{
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SingleFeedBase::pub(boost::json::serialize(rpc::computeBookChanges(lgrInfo, transactions)));
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}
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};
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} // namespace feed::impl
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