more examples

Signed-off-by: Jeff Carr <jcarr@wit.com>

.gitignore

@@ -15,3 +15,5 @@ go-clone-test/goclonetest
 go-clone-test/goclonetesttest
 going2git/going2git
 cf-r2/cf-r2
+cf-r2/download
+cf-r2/upload

cf-r2/download.go

@@ -0,0 +1,66 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"log"
+
+	"github.com/minio/minio-go/v7"
+	"github.com/minio/minio-go/v7/pkg/credentials"
+)
+
+const (
+	r2Endpoint    = "<account-id>.r2.cloudflarestorage.com" // Replace with your R2 endpoint
+	r2AccessKey   = "<your-access-key>"                    // Replace with your Access Key
+	r2SecretKey   = "<your-secret-key>"                    // Replace with your Secret Key
+	r2BucketName  = "example-bucket"                       // Replace with your bucket name
+)
+
+func main() {
+	// Initialize MinIO client for Cloudflare R2
+	client, err := minio.New(r2Endpoint, &minio.Options{
+		Creds:  credentials.NewStaticV4(r2AccessKey, r2SecretKey, ""),
+		Secure: true, // Use HTTPS
+	})
+	if err != nil {
+		log.Fatalf("Failed to initialize client: %v", err)
+	}
+
+	// Upload a file
+	err = uploadFile(client, "example.txt", "example.txt")
+	if err != nil {
+		log.Fatalf("Upload failed: %v", err)
+	}
+
+	// Download the file
+	err = downloadFile(client, "example.txt", "downloaded-example.txt")
+	if err != nil {
+		log.Fatalf("Download failed: %v", err)
+	}
+}
+
+// UploadFile uploads a file to the R2 bucket
+func uploadFile(client *minio.Client, objectName, filePath string) error {
+	ctx := context.Background()
+	_, err := client.FPutObject(ctx, r2BucketName, objectName, filePath, minio.PutObjectOptions{
+		ContentType: "application/octet-stream", // Adjust MIME type if needed
+	})
+	if err != nil {
+		return fmt.Errorf("failed to upload file: %w", err)
+	}
+
+	fmt.Printf("Successfully uploaded %s as %s\n", filePath, objectName)
+	return nil
+}
+
+// DownloadFile downloads a file from the R2 bucket
+func downloadFile(client *minio.Client, objectName, destPath string) error {
+	ctx := context.Background()
+	err := client.FGetObject(ctx, r2BucketName, objectName, destPath, minio.GetObjectOptions{})
+	if err != nil {
+		return fmt.Errorf("failed to download file: %w", err)
+	}
+
+	fmt.Printf("Successfully downloaded %s to %s\n", objectName, destPath)
+	return nil
+}

cf-r2/upload.go

@@ -0,0 +1,58 @@
+// FileUploader.go MinIO example
+package main
+
+import (
+	"context"
+	"log"
+
+	"github.com/minio/minio-go/v7"
+	"github.com/minio/minio-go/v7/pkg/credentials"
+)
+
+func main() {
+	ctx := context.Background()
+	endpoint := "play.min.io"
+	accessKeyID := "Q3AM3UQ867SPQQA43P2F"
+	secretAccessKey := "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG"
+	useSSL := true
+
+	// Initialize minio client object.
+	minioClient, err := minio.New(endpoint, &minio.Options{
+		Creds:  credentials.NewStaticV4(accessKeyID, secretAccessKey, ""),
+		Secure: useSSL,
+	})
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	// Make a new bucket called testbucket.
+	bucketName := "testbucket"
+	location := "us-east-1"
+
+	err = minioClient.MakeBucket(ctx, bucketName, minio.MakeBucketOptions{Region: location})
+	if err != nil {
+		// Check to see if we already own this bucket (which happens if you run this twice)
+		exists, errBucketExists := minioClient.BucketExists(ctx, bucketName)
+		if errBucketExists == nil && exists {
+			log.Printf("We already own %s\n", bucketName)
+		} else {
+			log.Fatalln(err)
+		}
+	} else {
+		log.Printf("Successfully created %s\n", bucketName)
+	}
+
+	// Upload the test file
+	// Change the value of filePath if the file is in another location
+	objectName := "testdata"
+	filePath := "/tmp/testdata"
+	contentType := "application/octet-stream"
+
+	// Upload the test file with FPutObject
+	info, err := minioClient.FPutObject(ctx, bucketName, objectName, filePath, minio.PutObjectOptions{ContentType: contentType})
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	log.Printf("Successfully uploaded %s of size %d\n", objectName, info.Size)
+}