How to Use the AWS SDK for Go with Backblaze B2 Cloud Storage

You can take advantage of Backblaze B2 Cloud Storage using the AWS SDK for Go alongside the Backblaze S3-Compatible API.

It is easy to use the AWS Go SDK to integrate object storage into your Go environment.

The following example shows a configuration of the AWS Go SDK with the S3-Compatible API.

package main

import (
"fmt"
"strings"

"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/s3"
)

func main() {
bucket := aws.String("myBucketName")
key := aws.String("testfile.txt")

s3Config := &aws.Config{
Credentials: credentials.NewStaticCredentials("<B2-keyId>", "<b2-appKey>", ""),
Endpoint: aws.String("https://s3.us-west-002.backblazeb2.com"),
Region: aws.String("us-west-002"),
S3ForcePathStyle: aws.Bool(true),
}
newSession := session.New(s3Config)

s3Client := s3.New(newSession)

cparams := &s3.CreateBucketInput{
Bucket: bucket, // Required
}
_, err := s3Client.CreateBucket(cparams)
if err != nil {
// Print if any error.
fmt.Println(err.Error())
return
}
fmt.Printf("Successfully created bucket %s\n", *bucket)

// Upload a new object "testfile.txt" with the string "S3 Compatible API"
_, err = s3Client.PutObject(&s3.PutObjectInput{
Body: strings.NewReader("S3 Compatible API"),
Bucket: bucket,
Key: key,
})
if err != nil {
fmt.Printf("Failed to upload object %s/%s, %s\n", *bucket, *key, err.Error())
return
}
fmt.Printf("Successfully uploaded key %s\n",*key)

//Get Object
_, err = s3Client.GetObject(&s3.GetObjectInput{
Bucket: bucket,
Key: key,
})
if err != nil {
fmt.Println("Failed to download file", err)
return
}
fmt.Printf("Successfully Downloaded key %s\n",*key)