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list_files.go
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/
list_files.go
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// Copyright 2020 Google LLC
//
// 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
//
// https://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 objects
// [START storage_list_files]
import (
"context"
"fmt"
"io"
"time"
"cloud.google.com/go/storage"
"google.golang.org/api/iterator"
)
// listFiles lists objects within specified bucket.
func listFiles(w io.Writer, bucket string) error {
// bucket := "bucket-name"
ctx := context.Background()
client, err := storage.NewClient(ctx)
if err != nil {
return fmt.Errorf("storage.NewClient: %w", err)
}
defer client.Close()
ctx, cancel := context.WithTimeout(ctx, time.Second*10)
defer cancel()
it := client.Bucket(bucket).Objects(ctx, nil)
for {
attrs, err := it.Next()
if err == iterator.Done {
break
}
if err != nil {
return fmt.Errorf("Bucket(%q).Objects: %w", bucket, err)
}
fmt.Fprintln(w, attrs.Name)
}
return nil
}
// [END storage_list_files]