drogon/examples/redis/controllers/Client.cc

88 lines
2.4 KiB
C++

#include "Client.h"
using namespace drogon;
void Client::get(const HttpRequestPtr &,
std::function<void(const HttpResponsePtr &)> &&callback,
std::string key)
{
nosql::RedisClientPtr redisClient = app().getRedisClient();
redisClient->execCommandAsync(
[callback](const nosql::RedisResult &r) {
if (r.type() == nosql::RedisResultType::kNil)
{
auto resp = HttpResponse::newHttpResponse();
resp->setStatusCode(k404NotFound);
callback(resp);
return;
}
std::string redisResponse = r.asString();
Json::Value response;
Json::CharReaderBuilder builder;
Json::CharReader *reader = builder.newCharReader();
Json::Value json;
std::string errors;
bool parsingSuccessful =
reader->parse(redisResponse.c_str(),
redisResponse.c_str() + redisResponse.size(),
&json,
&errors);
delete reader;
response["response"] = redisResponse;
if (parsingSuccessful)
{
response["response"] = json;
}
auto resp = HttpResponse::newHttpJsonResponse(response);
callback(resp);
},
[](const std::exception &err) {
LOG_ERROR << "something failed!!! " << err.what();
},
"get %s",
key.c_str());
}
void Client::post(const HttpRequestPtr &req,
std::function<void(const HttpResponsePtr &)> &&callback,
std::string key)
{
nosql::RedisClientPtr redisClient = app().getRedisClient();
auto json = req->getJsonObject();
if (!json)
{
auto resp = HttpResponse::newHttpResponse();
resp->setBody("missing 'value' in body");
resp->setStatusCode(k400BadRequest);
callback(resp);
return;
}
std::string value = (*json)["value"].asString();
redisClient->execCommandAsync(
[callback](const nosql::RedisResult &) {
auto resp = HttpResponse::newHttpResponse();
resp->setStatusCode(k201Created);
callback(resp);
},
[](const std::exception &err) {
LOG_ERROR << "something failed!!! " << err.what();
},
"set %s %s",
key.c_str(),
value.c_str());
}