Step by step reveal: How to use Go language to connect to Huawei Cloud interface

Step by step reveal: How to use Go language to connect to Huawei Cloud interface

In the field of cloud computing, Huawei Cloud, as the leading cloud service provider in China, has rich functions and flexible scalability in its API interface, which can Meet the various needs of enterprises in the field of cloud computing. This article will introduce you to how to use Go language to connect to Huawei Cloud interfaces, and provide some practical code examples.

1. Preparation
First, make sure you have registered a Huawei Cloud account and created corresponding service projects. Each service project will generate a corresponding Access Key ID and Access Key Secret for authentication and API access.

Secondly, you need to install the Go language development environment. You can download it from the official website and install it according to the instructions. After the installation is complete, make sure you can execute the "go version" command on the command line to correctly display the Go version information.

2. Introduce dependencies
Before we start writing code, we need to introduce some third-party libraries to help us access the interface. In Go language, libraries are usually introduced using the "import" keyword. In this article, we will use go-sdk to access Huawei Cloud interfaces.

In the root directory of the Go project, execute the following command to introduce go-sdk:

go get github.com/huaweicloud/huaweicloud-sdk-go

3. Write code
Below we will demonstrate to you according to Huawei Cloud’s API document How to create a cloud server.

First, at the beginning of the code, you need to introduce the library used:

import (
    "github.com/huaweicloud/huaweicloud-sdk-go/core"
    "github.com/huaweicloud/huaweicloud-sdk-go/auth/aksk"
    "github.com/huaweicloud/huaweicloud-sdk-go/services/ecs"
)

Next, in the main function of the code, create an ECSClient object and use Access Key ID and Access Key Secret for authentication:

func main() {
    credentials := aksk.NewAkSkRequest()
    credentials.WithAk("your-access-key-id")
    credentials.WithSk("your-access-key-secret")
    auth := aksk.NewAkSkAuth(credentials)
    client, _ := ecs.NewEcsClient(auth, "your-region")
}

Please note that "your-access-key-id" and "your-access-key-secret" in the above code need to be replaced with your own Access Key ID and Access Key Secret, "your-region" needs to be replaced with your region.

Next, we can make specific API calls. Take creating a cloud server as an example:

func main() {
    // 省略之前的代码...
    
    // 创建云服务器
    req := ecs.NewCreateServerRequest()
    req.ImageRef = "your-image-id"
    req.FlavorRef = "your-flavor-id"
    req.Vpcid = "your-vpc-id"
    req.Nic = []ecs.Nics{
        {
            SubnetId: "your-subnet-id",
        },
    }
    req.EvSchedulingPolicies = []ecs.EvSchedulingPolicies{
        {
            Type: "affinity",
        },
    }
    resp, err := client.CreateServer(req)

    // 处理创建结果
    if err != nil {
        fmt.Println("创建云服务器失败：", err)
    } else {
        fmt.Println("创建云服务器成功：", resp.Server)
    }
}

"your-image-id", "your-flavor-id", "your-vpc-id", "your-subnet-id" in the above code are required Replace with the corresponding resource IDs. These IDs can be found in the Huawei Cloud Console.

4. Run the program
After completing the code writing, we can use the go command to run the program:

go run main.go

If everything goes well, the program will output the result of creating the cloud server.

5. Summary
This article introduces in detail how to use Go language to connect to Huawei Cloud interface, and provides a specific code example to demonstrate the creation operation of the cloud server. I hope that the introduction of this article can help everyone better understand and use Go language to develop Huawei Cloud interfaces. Of course, Huawei Cloud also provides rich API functions. Readers can further expand and improve the code according to their actual needs.

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