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94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
/* Copyright (c) 2018-2022 Marcelo Zimbres Silva (mzimbres@gmail.com)
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*
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* Distributed under the Boost Software License, Version 1.0. (See
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* accompanying file LICENSE.txt)
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*/
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#include <boost/redis/connection.hpp>
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#include <boost/redis/resp3/serialization.hpp>
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#include <boost/asio/co_spawn.hpp>
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#include <boost/asio/detached.hpp>
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#include <boost/asio/consign.hpp>
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#include <boost/system/errc.hpp>
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#include <iostream>
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// See the definition in person.proto. This header is automatically
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// generated by CMakeLists.txt.
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#include "person.pb.h"
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#if defined(BOOST_ASIO_HAS_CO_AWAIT)
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namespace asio = boost::asio;
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namespace resp3 = boost::redis::resp3;
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using boost::redis::request;
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using boost::redis::response;
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using boost::redis::operation;
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using boost::redis::ignore_t;
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using boost::redis::config;
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using boost::redis::connection;
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using boost::redis::resp3::node_view;
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// The protobuf type described in example/person.proto
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using tutorial::person;
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// Boost.Redis customization points (example/protobuf.hpp)
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namespace tutorial
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{
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// Below I am using a Boost.Redis to indicate a protobuf error, this
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// is ok for an example, users however might want to define their own
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// error codes.
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void boost_redis_to_bulk(std::string& to, person const& u)
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{
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std::string tmp;
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if (!u.SerializeToString(&tmp))
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throw boost::system::system_error(boost::redis::error::invalid_data_type);
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resp3::boost_redis_to_bulk(to, tmp);
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}
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void
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boost_redis_from_bulk(
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person& u,
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node_view const& node,
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boost::system::error_code& ec)
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{
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std::string const tmp {node.value};
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if (!u.ParseFromString(tmp))
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ec = boost::redis::error::invalid_data_type;
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}
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} // tutorial
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using tutorial::boost_redis_to_bulk;
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using tutorial::boost_redis_from_bulk;
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asio::awaitable<void> co_main(config cfg)
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{
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auto ex = co_await asio::this_coro::executor;
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auto conn = std::make_shared<connection>(ex);
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conn->async_run(cfg, {}, asio::consign(asio::detached, conn));
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person p;
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p.set_name("Louis");
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p.set_id(3);
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p.set_email("No email yet.");
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request req;
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req.push("SET", "protobuf-key", p);
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req.push("GET", "protobuf-key");
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response<ignore_t, person> resp;
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// Sends the request and receives the response.
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co_await conn->async_exec(req, resp);
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conn->cancel();
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std::cout
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<< "Name: " << std::get<1>(resp).value().name() << "\n"
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<< "Age: " << std::get<1>(resp).value().id() << "\n"
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<< "Email: " << std::get<1>(resp).value().email() << "\n";
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}
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#endif // defined(BOOST_ASIO_HAS_CO_AWAIT)
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