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HomeBackend DevelopmentGolangUsing Azure with Go: A Complete Guide

Using Azure with Go: A Complete Guide

Jun 17, 2023 am 09:21 AM
go languageguideazure

With the rapid development of cloud computing technology, more and more companies are beginning to migrate their businesses to the cloud. As one of the world's leading cloud computing platforms, Azure provides comprehensive cloud services and solutions to help enterprises quickly build and expand various applications. Go language is a fast, efficient and powerful programming language, and its combination with Azure will bring more advantages and opportunities. In this article, we will explore how to use Azure in Go language, including the creation, connection and use of Azure services.

Step One: Create an Azure Service

First, we need to create a service on the Azure platform. After registering an account on the Azure official website and logging in, entering the console, we can see a "Create Resource" button. Click this button to enter the resource creation page, select the appropriate options and fill in the necessary information. Different resource types have different requirements when creating them, but in all types, we need to specify the required service level and pricing plan.

Step 2: Connect to the Azure service

After creating the Azure service, we need to use the relevant connection string to connect the application to the service. Azure provides a variety of connection methods, including using the management portal, PowerShell scripts, Azure CLI, and REST API. In Go language, we can use Azure SDK to connect to Azure services. Before using Azure SDK, we need to install the relevant SDK libraries first.

Step Three: Use Azure Services

After connecting to Azure services, we can use various Azure services to build and extend applications. The Azure platform provides a variety of services, such as storage services, computing services, artificial intelligence services, etc., which can help us better manage and process application data and computing results. In Go language, we can use Azure SDK to access these services. Below, we take storage service as an example to introduce how to use Azure in Go language.

Using Azure Storage Service

Azure Storage Service is a cloud storage solution that can be used to store and operate many types of data, such as files, documents, messages, images, etc. Azure provides a variety of storage services, including Blob storage, Table storage, file storage, etc. In this section, we will introduce how to use the Azure Blob storage service.

In Go language, we can access the Blob storage service through Azure SDK. Using the Azure Blob storage service, we can create and manage Blob objects, read and write the contents of Blobs, and implement asynchronous operations on Blobs. Here is a simple sample code:

package main

import (
    "context"
    "fmt"
    "github.com/Azure/azure-storage-blob-go/azblob"
)

func main() {
    // 填写Azure服务的连接字符串
    connStr := ""
    // 填写Blob存储容器的名称
    containerName := ""
    // 填写Blob对象的名称
    blobName := ""

    // 创建容器
    credential, err := azblob.NewSharedKeyCredential("", "")
    if err != nil {
        fmt.Println("Unable to create credential.", err)
        return
    }
    p := azblob.NewPipeline(credential, azblob.PipelineOptions{})
    containerURL := azblob.NewContainerURL("https://example.blob.core.windows.net/"+containerName, p)
    _, err = containerURL.Create(context.Background(), azblob.Metadata{}, azblob.PublicAccessNone)
    if err != nil {
        fmt.Println("Unable to create container.", err)
        return
    }

    // 创建Blob对象
    blockBlobURL := containerURL.NewBlockBlobURL(blobName)
    _, err = azblob.UploadStreamToBlockBlob(context.Background(), azblob.NewStreamGetter(nil), blockBlobURL, azblob.UploadToBlockBlobOptions{})
    if err != nil {
        fmt.Println("Unable to create blob.", err)
        return
    }

    // 获取Blob对象内容
    blobURL := containerURL.NewBlobURL(blobName)
    resp, err := blobURL.Download(context.Background(), 0, azblob.CountToEnd, azblob.BlobAccessConditions{}, false)
    if err != nil {
        fmt.Println("Unable to get blob content.", err)
        return
    }
    bodyStream := resp.Body(azblob.RetryReaderOptions{MaxRetryRequests: 20})
    p := make([]byte, 1024)
    _, err = bodyStream.Read(p)
    if err != nil && err != io.EOF {
        fmt.Println("Unable to read blob content.", err)
        return
    }
    fmt.Println("Blob content:", string(p))
}

In the above code, we first create a container and a Blob object using the Azure Blob storage service. We then read the content from the Blob object and print it to the console.

Summary

This article introduces how to use Azure in Go language, including the creation, connection and use of Azure services. It should be noted that the Azure platform provides a wealth of cloud services and solutions, and we can choose different services and development tools according to our needs. When using Azure, we should follow best practices, such as using security certification, backing up data, etc., to ensure that our applications can run safely and stably in the cloud.

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