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100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
//
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// Copyright (c) 2025 Marcelo Zimbres Silva (mzimbres@gmail.com),
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// Ruben Perez Hidalgo (rubenperez038 at gmail dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#include <boost/redis/connection.hpp>
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#include <boost/redis/logger.hpp>
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#include <boost/asio/detached.hpp>
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#include <boost/system/error_code.hpp>
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#include <cstddef>
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#include <iostream>
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#include <spdlog/spdlog.h>
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#include <string_view>
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namespace asio = boost::asio;
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namespace redis = boost::redis;
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// Maps a Boost.Redis log level to a spdlog log level
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static spdlog::level::level_enum to_spdlog_level(redis::logger::level lvl)
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{
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switch (lvl) {
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// spdlog doesn't include the emerg and alert syslog levels,
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// so we convert them to the highest supported level.
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// Similarly, notice is similar to info
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case redis::logger::level::emerg:
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case redis::logger::level::alert:
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case redis::logger::level::crit: return spdlog::level::critical;
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case redis::logger::level::err: return spdlog::level::err;
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case redis::logger::level::warning: return spdlog::level::warn;
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case redis::logger::level::notice:
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case redis::logger::level::info: return spdlog::level::info;
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case redis::logger::level::debug:
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default: return spdlog::level::debug;
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}
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}
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// This function glues Boost.Redis logging and spdlog.
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// It should have the signature shown here. It will be invoked
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// by Boost.Redis whenever a message is to be logged.
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static void do_log(redis::logger::level level, std::string_view msg)
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{
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spdlog::log(to_spdlog_level(level), "(Boost.Redis) {}", msg);
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}
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auto main(int argc, char** argv) -> int
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{
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try {
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// Create an execution context, required to create any I/O objects
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asio::io_context ioc;
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// Create a connection to connect to Redis, and pass it a custom logger.
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// Boost.Redis will call do_log whenever it needs to log a message.
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// Note that the function will only be called for messages with level >= info
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// (i.e. filtering is done by Boost.Redis).
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redis::connection conn{
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ioc,
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redis::logger{redis::logger::level::info, do_log}
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};
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// Configuration to connect to the server. Adjust as required
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redis::config cfg;
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if (argc == 3) {
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cfg.addr.host = argv[1];
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cfg.addr.port = argv[2];
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}
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// Run the connection with the specified configuration.
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// This will establish the connection and keep it healthy
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conn.async_run(cfg, asio::detached);
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// Execute a request
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redis::request req;
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req.push("PING", "Hello world");
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redis::response<std::string> resp;
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conn.async_exec(req, resp, [&](boost::system::error_code ec, std::size_t /* bytes_read*/) {
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if (ec) {
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spdlog::error("Request failed: {}", ec.what());
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exit(1);
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} else {
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spdlog::info("PING: {}", std::get<0>(resp).value());
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}
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conn.cancel();
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});
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// Actually run our example. Nothing will happen until we call run()
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ioc.run();
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} catch (std::exception const& e) {
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spdlog::error("Error: {}", e.what());
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return 1;
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}
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}
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