etcd-cpp-apiv3编译笔记

etcd-cpp-apiv3编译笔记

etcd-cpp-apiv3是etcd的c++版本客户端api，项目地址为

https://github.com/etcd-cpp-apiv3/etcd-cpp-apiv3

由于readme文档中没详细对此库的编译进行说明，踩了一些坑，遂记录一下。

1.依赖

boost

protobuf

gRPC

cpprestsdk

2.编译

2.1安装相关依赖

此次仅介绍Ubuntu的方法，如下

sudo apt install -y ca-certificates ccache cmake libboost-all-dev libcurl4-openssl-dev libgrpc-dev libgrpc++-dev libprotobuf-dev libssl-dev libz-dev lsb-release protobuf-compiler-grpc screenfetch wget

2.2安装编译cpprestsdk

$ git clone https://github.com/microsoft/cpprestsdk.git
$ cd cpprestsdk
$ mkdir build && cd build
$ cmake .. -DBUILD_TESTS=ON  -DBUILD_SAMPLES=ON -DCPPREST_EXCLUDE_WEBSOCKETS=ON -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
$ make -j 
$ sudo make install

2.3安装编译etcd-cpp-apiv3

$ git clone https://github.com/etcd-cpp-apiv3/etcd-cpp-apiv3.git
$ cd etcd-cpp-apiv3
$ mkdir build && cd build
$ cmake .. -DBUILD_ETCD_TESTS=ON -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
$ make -j
$ sudo make install

3.测试

编写一个demo

#include <etcd/Watcher.hpp>
#include <string>
#include <iostream>

std::string str_url = "http://192.168.1.104:12379";
std::string str_key = "/server";

void watcher_cb(etcd::Response const & resp)
{
    if (resp.error_code())
    {
        //error
        std::cout<<"watcher_cb error_code:"<<resp.error_code()<<" and error";
        std::cout <<" msg:"<<resp.error_message()<<std::endl;
    }
    else
    {
        //success
        if(resp.action() == "set")
        {
            std::cout<<"set key:"<<resp.key(resp.index())<<" value:"<<resp.value(resp.index()).as_string();
        }
        else if(resp.action() == "delete")
        {
            std::cout<<"set key:"<<resp.key(resp.index())<<" value:"<<resp.value(resp.index()).as_string();
        }
    }

}

int main()
{
    etcd::Watcher watcher(str_url,str_key,watcher_cb,true);
    getchar();
    watcher.Cancel();
    return 0;
}

编译

$ g++ main.cpp -o main -lpthread -letcd-cpp-api -lprotobuf  -lgrpc++ -lgrpc -lz -lcpprest -lssl -lcrypto -lboost_system
$ ./main