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89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
/* Copyright (c) 2019 Marcelo Zimbres Silva (mzimbres@gmail.com)
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/.
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*/
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#include <iostream>
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#include <vector>
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#include <map>
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#include <unordered_map>
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#include <aedis/src.hpp>
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#include <aedis/aedis.hpp>
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#include "utils.ipp"
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namespace resp3 = aedis::resp3;
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using aedis::command;
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using resp3::serializer;
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using resp3::adapt;
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namespace net = aedis::net;
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using net::async_write;
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using net::buffer;
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using net::dynamic_buffer;
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/* Shows how to serialize and read redis hashes in C++ containers.
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*/
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net::awaitable<void> containers()
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{
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try {
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auto socket = co_await connect();
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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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// Creates and sends the request.
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serializer<command> sr;
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sr.push(command::hello, 3);
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sr.push(command::flushall);
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sr.push_range(command::hset, "key", std::cbegin(map), std::cend(map));
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sr.push(command::hgetall, "key");
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sr.push(command::hgetall, "key");
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sr.push(command::hgetall, "key");
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sr.push(command::quit);
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co_await async_write(socket, buffer(sr.request()));
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// The expected responses
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int hset;
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std::vector<std::string> hgetall1;
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std::map<std::string, std::string> hgetall2;
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std::unordered_map<std::string, std::string> hgetall3;
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// Reads the responses.
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std::string buffer;
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co_await resp3::async_read(socket, dynamic_buffer(buffer)); // hello
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co_await resp3::async_read(socket, dynamic_buffer(buffer)); // flushall
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co_await resp3::async_read(socket, dynamic_buffer(buffer), adapt(hset));
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co_await resp3::async_read(socket, dynamic_buffer(buffer), adapt(hgetall1));
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co_await resp3::async_read(socket, dynamic_buffer(buffer), adapt(hgetall2));
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co_await resp3::async_read(socket, dynamic_buffer(buffer), adapt(hgetall3));
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co_await resp3::async_read(socket, dynamic_buffer(buffer));
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// Prints the responses.
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std::cout << "hset: " << hset;
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std::cout << "\nhgetall (as vector): ";
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for (auto const& e: hgetall1) std::cout << e << ", ";
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std::cout << "\nhgetall (as map): ";
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for (auto const& e: hgetall2) std::cout << e.first << " ==> " << e.second << "; ";
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std::cout << "\nhgetall (as unordered_map): ";
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for (auto const& e: hgetall3) std::cout << e.first << " ==> " << e.second << "; ";
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std::cout << "\n";
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} catch (std::exception const& e) {
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std::cerr << e.what() << std::endl;
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}
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}
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int main()
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{
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net::io_context ioc;
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co_spawn(ioc, containers(), net::detached);
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ioc.run();
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}
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