removeobjects.go

//go:build example
// +build example

/*
 * MinIO Go Library for Amazon S3 Compatible Cloud Storage
 * Copyright 2015-2017 MinIO, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package main

import (
	"context"
	"log"

	"github.com/minio/minio-go/v7"
	"github.com/minio/minio-go/v7/pkg/credentials"
)

func main() {
	// Note: YOUR-ACCESSKEYID, YOUR-SECRETACCESSKEY, my-bucketname and my-objectname
	// are dummy values, please replace them with original values.

	// Requests are always secure (HTTPS) by default. Set secure=false to enable insecure (HTTP) access.
	// This boolean value is the last argument for New().

	// New returns an Amazon S3 compatible client object. API compatibility (v2 or v4) is automatically
	// determined based on the Endpoint value.
	s3Client, err := minio.New("s3.amazonaws.com", &minio.Options{
		Creds:  credentials.NewStaticV4("YOUR-ACCESSKEYID", "YOUR-SECRETACCESSKEY", ""),
		Secure: true,
	})
	if err != nil {
		log.Fatalln(err)
	}

	objectsCh := make(chan minio.ObjectInfo)

	// Send object names that are needed to be removed to objectsCh
	go func() {
		defer close(objectsCh)
		// List all objects from a bucket-name with a matching prefix.
		opts := minio.ListObjectsOptions{Prefix: "my-prefixname", Recursive: true}
		for object := range s3Client.ListObjects(context.Background(), "my-bucketname", opts) {
			if object.Err != nil {
				log.Fatalln(object.Err)
			}
			objectsCh <- object
		}
	}()

	// Call RemoveObjects API
	errorCh := s3Client.RemoveObjects(context.Background(), "my-bucketname", objectsCh, minio.RemoveObjectsOptions{})

	// Print errors received from RemoveObjects API
	for e := range errorCh {
		log.Fatalln("Failed to remove " + e.ObjectName + ", error: " + e.Err.Error())
	}

	log.Println("Success")
}