Advanced skills revealed: How Go language developers can elegantly connect to Huawei Cloud interfaces

Advanced skills revealed: How Go language developers can elegantly connect to Huawei cloud interfaces

Introduction:
With the rapid development of cloud computing, more and more developers choose to deploy applications to cloud platforms superior. Among these cloud platforms, Huawei Cloud is widely recognized and used. As a Go language developer, how to elegantly connect to Huawei Cloud interfaces is an important issue we face. This article will share some advanced techniques and code examples to help Go language developers elegantly connect Huawei Cloud interfaces.

1. Understand the Huawei Cloud interface development process
Before we start, we need to understand how to develop interfaces on Huawei Cloud. Huawei Cloud provides open APIs for system automation and integration. We can perform resource management, cloud disk, virtual machine and other operations by calling these APIs. The specific development process is as follows:

1. Register and log in to your Huawei Cloud account.
2. Create and configure a project.
3. Create and configure a user, and obtain the corresponding AK (Access Key) and SK (Secret Key).
4. Determine the service you want to use, such as cloud server, cloud hard disk, etc.
5. Select the corresponding API for development based on the API documentation provided by Huawei Cloud.

The above is just a simple process introduction, and the specific development process can be adjusted according to actual needs.

2. Use Go language to connect Huawei Cloud interfaces

1. Install Huawei Cloud Go SDK
   Before connecting Huawei Cloud interfaces, we need to install Huawei Cloud Go SDK. Through Go's package management tool go get, we can easily install Huawei Cloud Go SDK:

go get github.com/huaweicloud/huaweicloud-sdk-go/v3

2. Initialize SDK
   Before starting to use Huawei Cloud Go SDK, we need to initialize it first . By calling the Options function and passing in parameters such as AK and SK, we can complete the initialization:

import (
    "github.com/huaweicloud/huaweicloud-sdk-go/v3/core/auth"
)

func main() {
    ak := "YOUR_ACCESS_KEY"
    sk := "YOUR_SECRET_KEY"
    endpoint := "https://ecs.eu-west-0.prod-cloud-ocb.orange-business.com/v2"

    auth := auth.NewAkSk(ak, sk)
    auth.InitCredential(&auth.BasicCredentials{
        Endpoint: endpoint,
    })

    // 其他初始化操作
}

In the above code, AK and SK are obtained when we create a user on Huawei Cloud, endpoint It is the access address of Huawei Cloud API.

3. Call Huawei Cloud API
   After initializing the SDK, we can directly call Huawei Cloud API to operate. The following is an example of calling the virtual machine list API:

import (
    "fmt"
    "github.com/huaweicloud/huaweicloud-sdk-go/v3/services/ecs/v2/model"
    "github.com/huaweicloud/huaweicloud-sdk-go/v3/services/ecs/v2/region"
    "github.com/huaweicloud/huaweicloud-sdk-go/v3/services/ecs/v2/tenant"
)

func main() {
    ecsClient, err := ecs.NewEcsClient(ecs.EcsClientBuilder().
            WithCredential(auth).
            WithRegion(region.EU_WEST_0).
            WithEndpoint(endpoint).
            WithHttpConfig(config.DefaultHttpTransportConfig().WithTimeout(2*time.Second)).
            Build())

    if err != nil {
        fmt.Println("Failed to create ECS client: ", err.Error())
        return
    }

    listServersRequest := tenant.ListServersRequest{}
    listServersResponse, err := ecsClient.ListServers(nil, listServersRequest.ToListServersRequest())
    if err != nil {
        fmt.Println("Failed to list servers: ", err.Error())
        return
    }

    for _, server := range listServersResponse.Servers {
        fmt.Printf("Server Name: %s, Status: %s
", server.Name, server.Status)
    }
}

In the above example code, we initialize an EcsClient by importing the corresponding package, and call the ListServers API to obtain the virtual machine list. The returned listServersResponse contains detailed information about the virtual machine.

Conclusion:
This article introduces how to use Go language to elegantly connect Huawei Cloud interfaces. We first learned about the development process of Huawei Cloud interfaces, then introduced how to use Huawei Cloud Go SDK for development, and provided an example of calling the virtual machine list API. Through learning and practice, we can better develop and integrate Huawei Cloud interfaces and improve the scalability and flexibility of our applications.

Reference:

• [Huawei Cloud Developer Center](https://support.huaweicloud.com/sdkreference-ecs/ecs_01_0001.html)
• [Huawei Cloud Go SDK Documentation](https://github.com/huaweicloud/huaweicloud-sdk-go/v3)

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