List the objects in a bucket

  namespace 
  
 gcs 
  
 = 
  
 :: 
 google 
 :: 
 cloud 
 :: 
 storage 
 ; 
 []( 
 gcs 
 :: 
 Client 
  
 client 
 , 
  
 std 
 :: 
 string 
  
 const 
&  
 bucket_name 
 ) 
  
 { 
  
 for 
  
 ( 
 auto 
&&  
 object_metadata 
  
 : 
  
 client 
 . 
 ListObjects 
 ( 
 bucket_name 
 )) 
  
 { 
  
 if 
  
 ( 
 ! 
 object_metadata 
 ) 
  
 throw 
  
 std 
 :: 
 move 
 ( 
 object_metadata 
 ). 
 status 
 (); 
  
 std 
 :: 
 cout 
 << 
 "bucket_name=" 
 << 
 object_metadata 
 - 
> bucket 
 () 
 << 
 ", object_name=" 
 << 
 object_metadata 
 - 
> name 
 () 
 << 
 " 
 \n 
 " 
 ; 
  
 } 
 } 
 

  using 
  
  Google.Cloud.Storage.V1 
 
 ; 
 using 
  
 System 
 ; 
 using 
  
 System.Collections.Generic 
 ; 
 public 
  
 class 
  
 ListFilesSample 
 { 
  
 public 
  
 IEnumerable<Google 
 . 
 Apis 
 . 
 Storage 
 . 
 v1 
 . 
 Data 
 . 
 Object 
>  
 ListFiles 
 ( 
  
 string 
  
 bucketName 
  
 = 
  
 "your-unique-bucket-name" 
 ) 
  
 { 
  
 var 
  
 storage 
  
 = 
  
  StorageClient 
 
 . 
  Create 
 
 (); 
  
 var 
  
 storageObjects 
  
 = 
  
 storage 
 . 
 ListObjects 
 ( 
 bucketName 
 ); 
  
 Console 
 . 
 WriteLine 
 ( 
 $"Files in bucket {bucketName}:" 
 ); 
  
 foreach 
  
 ( 
 var 
  
 storageObject 
  
 in 
  
 storageObjects 
 ) 
  
 { 
  
 Console 
 . 
 WriteLine 
 ( 
 storageObject 
 . 
 Name 
 ); 
  
 } 
  
 return 
  
 storageObjects 
 ; 
  
 } 
 } 
 

  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 
 } 
 

  import 
  
 com.google.api.gax.paging. Page 
 
 ; 
 import 
  
 com.google.cloud.storage. Blob 
 
 ; 
 import 
  
 com.google.cloud.storage. Storage 
 
 ; 
 import 
  
 com.google.cloud.storage. StorageOptions 
 
 ; 
 public 
  
 class 
 ListObjects 
  
 { 
  
 public 
  
 static 
  
 void 
  
 listObjects 
 ( 
 String 
  
 projectId 
 , 
  
 String 
  
 bucketName 
 ) 
  
 { 
  
 // The ID of your GCP project 
  
 // String projectId = "your-project-id"; 
  
 // The ID of your GCS bucket 
  
 // String bucketName = "your-unique-bucket-name"; 
  
  Storage 
 
  
 storage 
  
 = 
  
  StorageOptions 
 
 . 
 newBuilder 
 (). 
 setProjectId 
 ( 
 projectId 
 ). 
 build 
 (). 
  getService 
 
 (); 
  
 Page<Blob> 
  
 blobs 
  
 = 
  
 storage 
 . 
  list 
 
 ( 
 bucketName 
 ); 
  
 for 
  
 ( 
  Blob 
 
  
 blob 
  
 : 
  
 blobs 
 . 
 iterateAll 
 ()) 
  
 { 
  
 System 
 . 
 out 
 . 
 println 
 ( 
 blob 
 . 
 getName 
 ()); 
  
 } 
  
 } 
 } 
 

  /** 
 * TODO(developer): Uncomment the following lines before running the sample. 
 */ 
 // The ID of your GCS bucket 
 // const bucketName = 'your-unique-bucket-name'; 
 // Imports the Google Cloud client library 
 const 
  
 { 
 Storage 
 } 
  
 = 
  
 require 
 ( 
 ' @google-cloud/storage 
' 
 ); 
 // Creates a client 
 const 
  
 storage 
  
 = 
  
 new 
  
 Storage 
 (); 
 async 
  
 function 
  
 listFiles 
 () 
  
 { 
  
 // Lists files in the bucket 
  
 const 
  
 [ 
 files 
 ] 
  
 = 
  
 await 
  
 storage 
 . 
 bucket 
 ( 
 bucketName 
 ). 
  getFiles 
 
 (); 
  
 console 
 . 
 log 
 ( 
 'Files:' 
 ); 
  
 files 
 . 
 forEach 
 ( 
 file 
  
 = 
>  
 { 
  
 console 
 . 
 log 
 ( 
 file 
 . 
 name 
 ); 
  
 }); 
 } 
 listFiles 
 (). 
 catch 
 ( 
 console 
 . 
 error 
 ); 
 

  use Google\Cloud\Storage\StorageClient; 
 /** 
 * List Cloud Storage bucket objects. 
 * 
 * @param string $bucketName The name of your Cloud Storage bucket. 
 *        (e.g. 'my-bucket') 
 */ 
 function list_objects(string $bucketName): void 
 { 
 $storage = new StorageClient(); 
 $bucket = $storage->bucket($bucketName); 
 foreach ($bucket->objects() as $object) { 
 printf('Object: %s' . PHP_EOL, $object->name()); 
 } 
 } 
 

  from 
  
 google.cloud 
  
 import 
  storage 
 
 def 
  
 list_blobs 
 ( 
 bucket_name 
 ): 
  
 """Lists all the blobs in the bucket.""" 
 # bucket_name = "your-bucket-name" 
 storage_client 
 = 
  storage 
 
 . 
  Client 
 
 () 
 # Note: Client.list_blobs requires at least package version 1.17.0. 
 blobs 
 = 
 storage_client 
 . 
  list_blobs 
 
 ( 
 bucket_name 
 ) 
 # Note: The call returns a response only when the iterator is consumed. 
 for 
 blob 
 in 
 blobs 
 : 
 print 
 ( 
 blob 
 . 
 name 
 ) 
 

  def 
  
 list_files 
  
 bucket_name 
 : 
  
 # The ID of your GCS bucket 
  
 # bucket_name = "your-unique-bucket-name" 
  
 require 
  
 "google/cloud/storage" 
  
 storage 
  
 = 
  
 Google 
 :: 
 Cloud 
 :: 
  Storage 
 
 . 
  new 
 
  
 bucket 
  
 = 
  
 storage 
 . 
 bucket 
  
 bucket_name 
  
 bucket 
 . 
  files 
 
 . 
  each 
 
  
 do 
  
 | 
 file 
 | 
  
 puts 
  
 file 
 . 
 name 
  
 end 
 end