A concise and easy-to-understand guide to integrating Qiniu Cloud interface with Go language

Concise and easy-to-understand Go language integration Qiniu Cloud Interface Guide

With the development of cloud computing, more and more developers are beginning to use cloud storage services to store and manage a large number of files. As a well-known cloud storage service provider, Qiniu Cloud is loved by developers for its easy-to-use interface and high reliability. This article will introduce how to use Go language to integrate Qiniu Cloud interface and provide code examples.

1. Register an account and create a project

First, we need to go to the Qiniu Cloud official website (https://www.qiniu.com/) to register an account and create a new project. After successful registration, we can find our access keys in Qiniu Cloud's developer backend. We need to save these keys for later use.

2. Install SDK

The Go language provides a wealth of third-party libraries. We can use the Go SDK officially provided by Qiniu Cloud to easily integrate the Qiniu Cloud interface. You can use the following command to install the SDK:

go get github.com/qiniu/api.v7

3. Verify the key

Before starting to use the SDK, we need to verify the validity of the secret key. We can create a file named qiniu_test.go and enter the following content:

package main

import (
    "fmt"
    "github.com/qiniu/api.v7/auth/qbox"
    "github.com/qiniu/api.v7/kodo"
)

func main() {
    accessKey := "your_access_key"
    secretKey := "your_secret_key"

    mac := qbox.NewMac(accessKey, secretKey)
    cfg := kodo.NewDefaultConfig()
    bucketManager := kodo.NewBucketManager(mac, cfg)
    buckets, err := bucketManager.Buckets()
    if err != nil {
        fmt.Println("验证失败：", err)
    } else {
        fmt.Println("验证成功，Bucket列表：", buckets)
    }
}

Please replace accessKey and secretKey with your own 's secret key. Run this program. If Verification successful and your Bucket list are output, it means the key verification is successful.

4. Upload files

Next, let us try to upload a file to Qiniu Cloud. Add the following content to the qiniu_test.go file:

import (
    "fmt"
    "github.com/qiniu/api.v7/auth/qbox"
    "github.com/qiniu/api.v7/kodo"
    "io/ioutil"
)

func main() {
    // 省略初始化和验证密钥的步骤

    // 读取文件内容
    filePath := "your_file_path"
    data, err := ioutil.ReadFile(filePath)
    if err != nil {
        fmt.Println("读取文件失败：", err)
        return
    }

    // 生成上传Token
    uploader := kodo.NewUploader(cfg)
    token := uploader.UploadToken(nil)

    // 上传文件
    ret := kodo.PutRet{}
    err = uploader.Put(nil, &ret, token, "my_file_key", data, nil)
    if err != nil {
        fmt.Println("上传文件失败：", err)
        return
    }

    fmt.Println("上传文件成功：", ret.Key)
}

Please replace your_file_path and my_file_key with your own file path and file name . Run this program, if the output File uploaded successfully, it means the file upload is successful.

5. Download File

Now, let’s try to download a file from Qiniu Cloud. Add the following content to the qiniu_test.go file:

import (
    "fmt"
    "github.com/qiniu/api.v7/auth/qbox"
    "github.com/qiniu/api.v7/kodo"
    "io/ioutil"
)

func main() {
    // 省略初始化和验证密钥的步骤

    // 下载文件
    downloader := kodo.NewDownloader(cfg)
    err := downloader.DownloadFile(nil, ioutil.Discard, "your_file_url")
    if err != nil {
        fmt.Println("下载文件失败：", err)
        return
    }

    fmt.Println("下载文件成功")
}

Please replace your_file_url with your own file URL. Run this program, if the output File downloaded successfully, it means the file download is successful.

6. Delete Files

Finally, let us try to delete a file on Qiniu Cloud. Add the following content to the qiniu_test.go file:

import (
    "fmt"
    "github.com/qiniu/api.v7/auth/qbox"
    "github.com/qiniu/api.v7/kodo"
)

func main() {
    // 省略初始化和验证密钥的步骤

    // 删除文件
    bucketManager := kodo.NewBucketManager(mac, cfg)
    err := bucketManager.Delete("your_bucket", "your_file_key")
    if err != nil {
        fmt.Println("删除文件失败：", err)
        return
    }

    fmt.Println("删除文件成功")
}

Please replace your_bucket and your_file_key with your own Bucket and file names. Run this program, if the output File deleted successfully, it means the file was deleted successfully.

So far, we have completed the guide on how to use Go language to integrate Qiniu Cloud interface. Through the introduction of this article, I believe you have mastered the basic Qiniu Cloud operation methods and can freely upload, download and delete files. Hope this article is helpful to you!

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