# nacos-sdk-cpp-windows

**Repository Path**: oushang/nacos-sdk-cpp-windows

## Basic Information

- **Project Name**: nacos-sdk-cpp-windows
- **Description**:  本工程代码为 https://github.com/nacos-group/nacos-sdk-cpp.git 的windows 移植版本。 
主要对工程在windows 目录下的编译运行进行了调整。 
工程需要第三方库pthread-win32 的支持。 
源代码路径为： 
https://github.com/GerHobbelt/pthread-win32.git

感谢源作者的贡献。
- **Primary Language**: C++
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 2
- **Forks**: 1
- **Created**: 2022-10-16
- **Last Updated**: 2025-01-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

<img src="https://github.com/alibaba/nacos/blob/develop/doc/Nacos_Logo.png" width="50%" height="50%" /> 

[中文版本说明请点这里](https://github.com/nacos-group/nacos-sdk-cpp/blob/master/README_zh_CN.md)

# Nacos-sdk-cpp

Nacos-sdk-cpp for c++ client allows users to access Nacos service, it supports service discovery and dynamic configuration.


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# Quick Examples
## Setup project
Download the source and run the following command in bash:

```
cd nacos-sdk-cpp
cmake .
make
```

a libnacos-cli.so and a nacos-cli.out will be generated

run `./nacos-cli.out` to perform test on the library

run `make install` to install the libnacos-cli to your system library path

**Note:** You need to run a nacos server on your local machine listening on port 8848 to go through the whole test
One of the testcases will test endpoint functionality, so **you also need** to run a simple http server on port 80 which provides the following content:

`127.0.0.1:8848`

**on path /nacos/endpoint0**

**All these examples could be found in nacos-sdk-cpp/examples/**

## Integrate the library into your project

Here is an example showing how to integrate the library(.so) into your project:

IntegratingIntoYourProject.cpp:
```C++
#include <iostream>
#include "Nacos.h"

using namespace std;
using namespace nacos;

int main() {
    Properties props;
    props[PropertyKeyConst::SERVER_ADDR] = "127.0.0.1:8848";//Server address
    NacosServiceFactory *factory = new NacosServiceFactory(props);
    ResourceGuard <NacosServiceFactory> _guardFactory(factory);
    ConfigService *n = factory->CreateConfigService();
    ResourceGuard <ConfigService> _serviceFactory(n);
    NacosString ss = "";
    try {
        ss = n->getConfig("k", NULLSTR, 1000);
    }
    catch (NacosException &e) {
        cout <<
             "Request failed with curl code:" << e.errorcode() << endl <<
             "Reason:" << e.what() << endl;
        return -1;
    }
    cout << ss << endl;

    return 0;
}

```

`g++ -I/usr/local/include/nacos/ IntegratingIntoYourProject.cpp -lnacos-cli -o integrated.out`

Start a nacos on your localmachine listening on port 8848, and run `./integrated.out`

Then you'll see:

`SuccessfullyIntegrated`

## If you are using a static lib(.a):
Assume that the file you are compiling resides in the same directory as the .a library, please use the following command:

`g++ -I/usr/local/include/nacos/ IntegratingIntoYourProject.cpp -lcurl -lz -L. -lnacos-cli-static -o integrated.out`

-lcurl -lz Specifies the curl and lz library used by libnacos

-L. -lnacos-cli-static links the static libnacos library resides in the same directory as IntegratingIntoYourProject.cpp

## Configuration

### Get Config

getConfig.cpp:
```C++
#include <iostream>
#include "Nacos.h"

using namespace std;
using namespace nacos;

int main() {
    Properties props;
    props[PropertyKeyConst::SERVER_ADDR] = "127.0.0.1:8848";//Server address
    NacosServiceFactory *factory = new NacosServiceFactory(props);
    ResourceGuard <NacosServiceFactory> _guardFactory(factory);
    ConfigService *n = factory->CreateConfigService();
    ResourceGuard <ConfigService> _serviceFactory(n);
    NacosString ss = "";
    try {
        ss = n->getConfig("k", NULLSTR, 1000);
    }
    catch (NacosException &e) {
        cout <<
             "Request failed with curl code:" << e.errorcode() << endl <<
             "Reason:" << e.what() << endl;
        return -1;
    }
    cout << ss << endl;

    return 0;
}
``` 

### Publish Config

setConfig.cpp:
```C++
#include <iostream>
#include "Nacos.h"

using namespace std;
using namespace nacos;

int main() {
    Properties props;
    props[PropertyKeyConst::SERVER_ADDR] = "127.0.0.1:8848";//server address
    NacosServiceFactory *factory = new NacosServiceFactory(props);
    ResourceGuard <NacosServiceFactory> _guardFactory(factory);
    ConfigService *n = factory->CreateConfigService();
    ResourceGuard <ConfigService> _serviceFactory(n);
    bool bSucc = false;
    NacosString ss = "";

    try {
        bSucc = n->publishConfig("Cfg_key", NULLSTR, "Cfg_val");
        int retry = 0;
        ss = n->getConfig("Cfg_key", NULLSTR, 1000);
        while (!(ss == "Cfg_val") && retry++ < 10) {
            ss = n->getConfig("Cfg_key", NULLSTR, 1000);
        }

        if (!(ss == "Cfg_val")) {
            throw NacosException(0, "getConfig() failed.");
        }
    }
    catch (NacosException &e) {
        cout <<
             "Request failed with curl code:" << e.errorcode() << endl <<
             "Reason:" << e.what() << endl;

        return -1;
    }
    cout << "Publishing Key:Cfg_key with value:Cfg_val result:" << bSucc << endl;

    return 0;
}
``` 

### Listen to key change & Cancel listening

listenToKeys.cpp:
```C++
#include <iostream>
#include "Nacos.h"

using namespace std;
using namespace nacos;

class MyListener : public Listener {
private:
    int num;
public:
    MyListener(int num) {
        this->num = num;
    }

    void receiveConfigInfo(const NacosString &configInfo) {
        cout << "===================================" << endl;
        cout << "Watcher" << num << endl;
        cout << "Watched Key UPDATED:" << configInfo << endl;
        cout << "===================================" << endl;
    }
};

int main() {
    Properties props;
    props[PropertyKeyConst::SERVER_ADDR] = "127.0.0.1:8848";
    NacosServiceFactory *factory = new NacosServiceFactory(props);
    ResourceGuard <NacosServiceFactory> _guardFactory(factory);
    ConfigService *n = factory->CreateConfigService();
    ResourceGuard <ConfigService> _serviceFactory(n);

    MyListener *theListener = new MyListener(1);//You don't need to free it, since it will be deleted by the function removeListener
    n->addListener("dqid", NULLSTR, theListener);//All changes on the key dqid will be received by MyListener

    cout << "Input a character to continue" << endl;
    getchar();
    cout << "remove listener" << endl;
    n->removeListener("dqid", NULLSTR, theListener);//Cancel listening
    getchar();

    return 0;
}
```

## Naming

### Register Instance & Unregister Instance

registerInstances.cpp:
```C++
#include <iostream>
#include <unistd.h>
#include "Nacos.h"

using namespace std;
using namespace nacos;

int main() {
    Properties configProps;
    configProps[PropertyKeyConst::SERVER_ADDR] = "127.0.0.1";
    NacosServiceFactory *factory = new NacosServiceFactory(configProps);
    ResourceGuard <NacosServiceFactory> _guardFactory(factory);
    NamingService *namingSvc = factory->CreateNamingService();
    ResourceGuard <NamingService> _serviceFactory(namingSvc);
    Instance instance;
    instance.clusterName = "DefaultCluster";
    instance.ip = "127.0.0.1";
    instance.port = 2333;
    instance.instanceId = "1";
    instance.ephemeral = true;

    //Registers 5 services named TestNamingService1...5
    try {
        for (int i = 0; i < 5; i++) {
            NacosString serviceName = "TestNamingService" + NacosStringOps::valueOf(i);
            instance.port = 2000 + i;
            namingSvc->registerInstance(serviceName, instance);
        }
    }
    catch (NacosException &e) {
        cout << "encounter exception while registering service instance, raison:" << e.what() << endl;
        return -1;
    }
    sleep(30);
    try {
        for (int i = 0; i < 5; i++) {
            NacosString serviceName = "TestNamingService" + NacosStringOps::valueOf(i);

            namingSvc->deregisterInstance(serviceName, "127.0.0.1", 2000 + i);
            sleep(1);
        }
    }
    catch (NacosException &e) {
        cout << "encounter exception while registering service instance, raison:" << e.what() << endl;
        return -1;
    }
    sleep(30);

    return 0;
}
```

### Subscribe & Unsubscribe

subscribeServices.cpp:
```C++
#include <iostream>
#include "Nacos.h"

using namespace std;
using namespace nacos;

class MyServiceListener : public EventListener {
private:
    int num;
public:
    MyServiceListener(int num) {
        this->num = num;
    }

    void receiveNamingInfo(const ServiceInfo &serviceInfo){
        cout << "===================================" << endl;
        cout << "Watcher: " << num << endl;
        cout << "Watched service UPDATED: " << serviceInfo.toInstanceString() << endl;
        cout << "===================================" << endl;

    }
};

int main() {
    Properties props;
    props[PropertyKeyConst::SERVER_ADDR] = "127.0.0.1:8848";
    //Interval for poller to check the status of subscribed services(unit:Ms), 30000 by default
    //Here we set it to 5000 to see the output more quick
    props[PropertyKeyConst::SUBSCRIPTION_POLL_INTERVAL] = "5000";
    NacosServiceFactory *factory = new NacosServiceFactory(props);
    ResourceGuard <NacosServiceFactory> _guardFactory(factory);
    NamingService *n = factory->CreateNamingService();
    ResourceGuard <NamingService> _serviceFactory(n);

    n->subscribe("ss", new MyServiceListener(1));
    cout << "Press any key to register services" << endl;
    getchar();

    n->registerInstance("ss", "127.0.0.1", 33);
    n->registerInstance("ss", "127.0.0.1", 34);
    cout << "Press any key to deregister services" << endl;
    getchar();

    n->deregisterInstance("ss", "127.0.0.1", 33);
    n->deregisterInstance("ss", "127.0.0.1", 34);
    cout << "All instances Unregistered, press any key to finish testing" << endl;
    getchar();

    return 0;
}
```

### Get all instances of a service

getAllInstances.cpp:
```C++
#include <iostream>
#include <list>
#include "Nacos.h"

using namespace std;
using namespace nacos;

int main() {
    Properties configProps;
    configProps[PropertyKeyConst::SERVER_ADDR] = "127.0.0.1";
    NacosServiceFactory *factory = new NacosServiceFactory(configProps);
    ResourceGuard <NacosServiceFactory> _guardFactory(factory);
    NamingService *namingSvc = factory->CreateNamingService();
    ResourceGuard <NamingService> _guardService(namingSvc);

    list <Instance> instances = namingSvc->getAllInstances("TestNamingService1");
    cout << "getAllInstances from server:" << endl;
    for (list<Instance>::iterator it = instances.begin();
         it != instances.end(); it++) {
        cout << "Instance:" << it->toString() << endl;
    }

    return 0;
}
```

### Enabling Authentication

If your Nacos server is secured with password, you can add the following snippet to any of the examples above to enable authentication:

```C++
using namespace nacos;
......
    configProps[PropertyKeyConst::SERVER_ADDR] = "127.0.0.1";
    configProps[PropertyKeyConst::AUTH_USERNAME] = "username";
    configProps[PropertyKeyConst::AUTH_PASSWORD] = "password";
    NacosServiceFactory *factory = new NacosServiceFactory(configProps);
    ConfigService *n = factory->CreateConfigService();
    NamingService *namingSvc = factory->CreateNamingService();
......
```

### Enabling SPAS Authentication

```C++
using namespace nacos;
......
    configProps[PropertyKeyConst::SERVER_ADDR] = "127.0.0.1";
    configProps[PropertyKeyConst::ACCESS_KEY] = "accessKey";
    configProps[PropertyKeyConst::SECRET_KEY] = "secretKey";
    NacosServiceFactory *factory = new NacosServiceFactory(configProps);
    ConfigService *n = factory->CreateConfigService();
    NamingService *namingSvc = factory->CreateNamingService();
......
```

# Supported System/Compilers

| OS/Environment | Compilers | Tested version |
| ---- | ---- | ---- |
|MacOS Darwin 19.6.0 x86_64|Clang|Apple clang version 12.0.0 (clang-1200.0.26.2)|
|Windows 10 WSL|GCC|version 4.8.4|
|Windows 10 CYGWIN_NT-10.0 x86_64|GCC|version 10.2.0 (GCC)|
|Ubuntu1~16.04.12|GCC|version 5.4.0|
|CentOS|GCC||
|Windows|Visual C++|To be done|


# About Nacos

Nacos (official site: [http://nacos.io](http://nacos.io)) is an easy-to-use platform designed for dynamic service discovery and configuration and service management. It helps you to build cloud native applications and microservices platform easily.

Service is a first-class citizen in Nacos. Nacos supports almost all type of services, for example: [Dubbo/gRPC service](https://nacos.io/en-us/docs/use-nacos-with-dubbo.html), [Spring Cloud RESTFul service](https://nacos.io/en-us/docs/use-nacos-with-springcloud.html) and [Kubernetes service](https://nacos.io/en-us/docs/use-nacos-with-kubernetes.html).