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https://github.com/boostorg/redis.git
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f04d97ffa5
Removes all the logger::on_xxx functions Removes the Logger template parameter to async_run Adds a logger constructor that allows passing a std::function to customize logging behavior Adds constructors to connection and basic_connection taking a logger Deprecates config::logger_prefix Deprecates the async_run overload taking a logger parameter Deprecates the basic_connection::async_run overload not taking any config object Deprecates the basic_connection::next_layer_type typedef Makes the default log level logger::info Makes the logging thread-safe Cleans up deprecated functionality from examples Adds docs on logging Adds an example on how to integrate spdlog into Boost.Redis logging close #213
146 lines
3.6 KiB
C++
146 lines
3.6 KiB
C++
/* Copyright (c) 2018-2025 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/asio/co_spawn.hpp>
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#include <boost/asio/detached.hpp>
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#include <iostream>
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#include <map>
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#include <vector>
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#if defined(BOOST_ASIO_HAS_CO_AWAIT)
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namespace asio = boost::asio;
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using boost::redis::request;
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using boost::redis::response;
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using boost::redis::ignore_t;
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using boost::redis::ignore;
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using boost::redis::config;
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using boost::redis::connection;
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using boost::asio::awaitable;
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using boost::asio::detached;
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using boost::asio::consign;
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template <class T>
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std::ostream& operator<<(std::ostream& os, std::optional<T> const& opt)
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{
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if (opt.has_value())
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std::cout << opt.value();
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else
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std::cout << "null";
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return os;
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}
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void print(std::map<std::string, std::string> const& cont)
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{
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for (auto const& e : cont)
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std::cout << e.first << ": " << e.second << "\n";
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}
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template <class T>
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void print(std::vector<T> const& cont)
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{
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for (auto const& e : cont)
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std::cout << e << " ";
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std::cout << "\n";
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}
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// Stores the content of some STL containers in Redis.
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auto store(std::shared_ptr<connection> conn) -> awaitable<void>
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{
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std::vector<int> vec{1, 2, 3, 4, 5, 6};
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std::map<std::string, std::string> map{
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{"key1", "value1"},
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{"key2", "value2"},
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{"key3", "value3"}
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};
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request req;
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req.push_range("RPUSH", "rpush-key", vec);
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req.push_range("HSET", "hset-key", map);
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req.push("SET", "key", "value");
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co_await conn->async_exec(req, ignore);
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}
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auto hgetall(std::shared_ptr<connection> conn) -> awaitable<void>
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{
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// A request contains multiple commands.
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request req;
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req.push("HGETALL", "hset-key");
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// Responses as tuple elements.
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response<std::map<std::string, std::string>> resp;
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// Executes the request and reads the response.
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co_await conn->async_exec(req, resp);
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print(std::get<0>(resp).value());
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}
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auto mget(std::shared_ptr<connection> conn) -> awaitable<void>
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{
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// A request contains multiple commands.
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request req;
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req.push("MGET", "key", "non-existing-key");
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// Responses as tuple elements.
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response<std::vector<std::optional<std::string>>> resp;
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// Executes the request and reads the response.
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co_await conn->async_exec(req, resp);
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print(std::get<0>(resp).value());
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}
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// Retrieves in a transaction.
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auto transaction(std::shared_ptr<connection> conn) -> awaitable<void>
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{
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request req;
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req.push("MULTI");
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req.push("LRANGE", "rpush-key", 0, -1); // Retrieves
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req.push("HGETALL", "hset-key"); // Retrieves
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req.push("MGET", "key", "non-existing-key");
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req.push("EXEC");
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response<
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ignore_t, // multi
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ignore_t, // lrange
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ignore_t, // hgetall
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ignore_t, // mget
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response<
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std::optional<std::vector<int>>,
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std::optional<std::map<std::string, std::string>>,
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std::optional<std::vector<std::optional<std::string>>>> // exec
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>
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resp;
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co_await conn->async_exec(req, resp);
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print(std::get<0>(std::get<4>(resp).value()).value().value());
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print(std::get<1>(std::get<4>(resp).value()).value().value());
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print(std::get<2>(std::get<4>(resp).value()).value().value());
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}
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// Called from the main function (see main.cpp)
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awaitable<void> co_main(config cfg)
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{
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auto conn = std::make_shared<connection>(co_await asio::this_coro::executor);
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conn->async_run(cfg, consign(detached, conn));
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co_await store(conn);
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co_await transaction(conn);
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co_await hgetall(conn);
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co_await mget(conn);
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conn->cancel();
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}
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#endif // defined(BOOST_ASIO_HAS_CO_AWAIT)
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