//! [create-bucket-with-object-retention]namespacegcs=::google::cloud::storage;using::google::cloud::StatusOr;[](gcs::Clientclient,std::stringconst&bucket_name,std::stringconst&project_id){autobucket=client.CreateBucket(bucket_name,gcs::BucketMetadata{},gcs::EnableObjectRetention(true),gcs::OverrideDefaultProject(project_id));if(!bucket)throwstd::move(bucket).status();if(!bucket->has_object_retention()){throwstd::runtime_error("missing object retention in new bucket");}std::cout <<"Successfully created bucket " <<bucket_name            <<" with object retention: " <<bucket->object_retention()            <<"\n";}//! [create-bucket-with-object-retention]

usingGoogle.Apis.Storage.v1.Data;usingGoogle.Cloud.Storage.V1;usingSystem;publicclassCreateBucketWithObjectRetentionSample{publicBucketCreateBucketWithObjectRetention(stringprojectId="your-project-id",stringbucketName="your-unique-bucket-name"){varstorage=StorageClient.Create();varbucket=storage.CreateBucket(projectId,bucketName,newCreateBucketOptions{ObjectRetentionEnabled=true});Console.WriteLine($"Created {bucketName}, with Object Retention enabled.");returnbucket;}}

importcom.google.cloud.storage.Bucket;importcom.google.cloud.storage.BucketInfo;importcom.google.cloud.storage.Storage;importcom.google.cloud.storage.StorageOptions;publicclassCreateBucketWithObjectRetention{publicstaticvoidcreateBucketWithObjectRetention(StringprojectId,StringbucketName){// The ID of your GCP project// String projectId = "your-project-id";// The ID to give your GCS bucket// String bucketName = "your-unique-bucket-name";Storagestorage=StorageOptions.newBuilder().setProjectId(projectId).build().getService();Bucketbucket=storage.create(BucketInfo.of(bucketName),Storage.BucketTargetOption.enableObjectRetention(true));System.out.println("Created bucket "+bucket.getName()+" with object retention enabled setting: "+bucket.getObjectRetention().getMode().toString());}}

/** * 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 libraryconst{Storage}=require('@google-cloud/storage');// Creates a client// The bucket in the sample below will be created in the project associated with this client.// For more information, please see https://cloud.google.com/docs/authentication/production or https://googleapis.dev/nodejs/storage/latest/Storage.htmlconststorage=newStorage();asyncfunctioncreateBucketWithObjectRetention(){const[bucket]=awaitstorage.createBucket(bucketName,{enableObjectRetention:true,});console.log(`Created '${bucket.name}' with object retention enabled setting:${bucket.metadata.objectRetention.mode}`);}createBucketWithObjectRetention().catch(console.error);

use Google\Cloud\Storage\StorageClient;/** * Create a Cloud Storage bucket with the object retention enabled. * * @param string $bucketName The name of your Cloud Storage bucket. *        (e.g. 'my-bucket') */function create_bucket_with_object_retention(string $bucketName): void{    $storage = new StorageClient();    $bucket = $storage->createBucket($bucketName, [        'enableObjectRetention' => true    ]);    printf(        'Created bucket %s with object retention enabled setting: %s' . PHP_EOL,        $bucketName,        $bucket->info()['objectRetention']['mode']    );}

fromgoogle.cloudimportstoragedefcreate_bucket_object_retention(bucket_name):"""Creates a bucket with object retention enabled."""# The ID of your GCS bucket# bucket_name = "your-bucket-name"storage_client=storage.Client()bucket=storage_client.create_bucket(bucket_name,enable_object_retention=True)print(f"Created bucket{bucket_name} with object retention enabled setting:{bucket.object_retention_mode}")

namespacegcs=::google::cloud::storage;using::google::cloud::StatusOr;[](gcs::Clientclient,std::stringconst&bucket_name){StatusOr<gcs::BucketMetadata>bucket_metadata=client.GetBucketMetadata(bucket_name);if(!bucket_metadata)throwstd::move(bucket_metadata).status();std::cout <<"The metadata for bucket " <<bucket_metadata->name() <<" is "            <<*bucket_metadata <<"\n";}

usingGoogle.Apis.Storage.v1.Data;usingGoogle.Cloud.Storage.V1;usingSystem;publicclassGetBucketMetadataSample{publicBucketGetBucketMetadata(stringbucketName="your-unique-bucket-name"){varstorage=StorageClient.Create();varbucket=storage.GetBucket(bucketName,newGetBucketOptions{Projection=Projection.Full});Console.WriteLine($"Bucket:\t{bucket.Name}");Console.WriteLine($"Acl:\t{bucket.Acl}");Console.WriteLine($"Billing:\t{bucket.Billing}");Console.WriteLine($"Cors:\t{bucket.Cors}");Console.WriteLine($"DefaultEventBasedHold:\t{bucket.DefaultEventBasedHold}");Console.WriteLine($"DefaultObjectAcl:\t{bucket.DefaultObjectAcl}");Console.WriteLine($"Encryption:\t{bucket.Encryption}");if(bucket.Encryption!=null){Console.WriteLine($"KmsKeyName:\t{bucket.Encryption.DefaultKmsKeyName}");}Console.WriteLine($"Id:\t{bucket.Id}");Console.WriteLine($"Kind:\t{bucket.Kind}");Console.WriteLine($"Lifecycle:\t{bucket.Lifecycle}");Console.WriteLine($"Location:\t{bucket.Location}");Console.WriteLine($"LocationType:\t{bucket.LocationType}");Console.WriteLine($"Logging:\t{bucket.Logging}");Console.WriteLine($"Metageneration:\t{bucket.Metageneration}");Console.WriteLine($"ObjectRetention:\t{bucket.ObjectRetention}");Console.WriteLine($"Owner:\t{bucket.Owner}");Console.WriteLine($"ProjectNumber:\t{bucket.ProjectNumber}");Console.WriteLine($"RetentionPolicy:\t{bucket.RetentionPolicy}");Console.WriteLine($"SelfLink:\t{bucket.SelfLink}");Console.WriteLine($"StorageClass:\t{bucket.StorageClass}");Console.WriteLine($"TimeCreated:\t{bucket.TimeCreated}");Console.WriteLine($"Updated:\t{bucket.Updated}");Console.WriteLine($"Versioning:\t{bucket.Versioning}");Console.WriteLine($"Website:\t{bucket.Website}");Console.WriteLine($"TurboReplication:\t{bucket.Rpo}");if(bucket.Labels!=null){Console.WriteLine("Labels:");foreach(varlabelinbucket.Labels){Console.WriteLine($"{label.Key}:\t{label.Value}");}}returnbucket;}}

importcom.google.cloud.storage.Bucket;importcom.google.cloud.storage.BucketInfo;importcom.google.cloud.storage.Storage;importcom.google.cloud.storage.StorageOptions;importjava.util.Map;publicclassGetBucketMetadata{publicstaticvoidgetBucketMetadata(StringprojectId,StringbucketName){// The ID of your GCP project// String projectId = "your-project-id";// The ID of your GCS bucket// String bucketName = "your-unique-bucket-name";Storagestorage=StorageOptions.newBuilder().setProjectId(projectId).build().getService();// Select all fields. Fields can be selected individually e.g. Storage.BucketField.NAMEBucketbucket=storage.get(bucketName,Storage.BucketGetOption.fields(Storage.BucketField.values()));// Print bucket metadataSystem.out.println("BucketName: "+bucket.getName());System.out.println("DefaultEventBasedHold: "+bucket.getDefaultEventBasedHold());System.out.println("DefaultKmsKeyName: "+bucket.getDefaultKmsKeyName());System.out.println("Id: "+bucket.getGeneratedId());System.out.println("IndexPage: "+bucket.getIndexPage());System.out.println("Location: "+bucket.getLocation());System.out.println("LocationType: "+bucket.getLocationType());System.out.println("Metageneration: "+bucket.getMetageneration());System.out.println("NotFoundPage: "+bucket.getNotFoundPage());System.out.println("RetentionEffectiveTime: "+bucket.getRetentionEffectiveTime());System.out.println("RetentionPeriod: "+bucket.getRetentionPeriod());System.out.println("RetentionPolicyIsLocked: "+bucket.retentionPolicyIsLocked());System.out.println("RequesterPays: "+bucket.requesterPays());System.out.println("SelfLink: "+bucket.getSelfLink());System.out.println("StorageClass: "+bucket.getStorageClass().name());System.out.println("TimeCreated: "+bucket.getCreateTime());System.out.println("VersioningEnabled: "+bucket.versioningEnabled());System.out.println("ObjectRetention: "+bucket.getObjectRetention());if(bucket.getLabels()!=null){System.out.println("\n\n\nLabels:");for(Map.Entry<String,String>label:bucket.getLabels().entrySet()){System.out.println(label.getKey()+"="+label.getValue());}}if(bucket.getLifecycleRules()!=null){System.out.println("\n\n\nLifecycle Rules:");for(BucketInfo.LifecycleRulerule:bucket.getLifecycleRules()){System.out.println(rule);}}}}

// Imports the Google Cloud client libraryconst{Storage}=require('@google-cloud/storage');// Creates a clientconststorage=newStorage();asyncfunctiongetBucketMetadata(){/**   * TODO(developer): Uncomment the following lines before running the sample.   */// The ID of your GCS bucket// const bucketName = 'your-unique-bucket-name';// Get Bucket Metadataconst[metadata]=awaitstorage.bucket(bucketName).getMetadata();console.log(JSON.stringify(metadata,null,2));}

use Google\Cloud\Storage\StorageClient;/** * Get bucket metadata. * * @param string $bucketName The name of your Cloud Storage bucket. *        (e.g. 'my-bucket') */function get_bucket_metadata(string $bucketName): void{    $storage = new StorageClient();    $bucket = $storage->bucket($bucketName);    $info = $bucket->info();    printf('Bucket Metadata: %s' . PHP_EOL, print_r($info, true));}

fromgoogle.cloudimportstoragedefbucket_metadata(bucket_name):"""Prints out a bucket's metadata."""# bucket_name = 'your-bucket-name'storage_client=storage.Client()bucket=storage_client.get_bucket(bucket_name)print(f"ID:{bucket.id}")print(f"Name:{bucket.name}")print(f"Storage Class:{bucket.storage_class}")print(f"Location:{bucket.location}")print(f"Location Type:{bucket.location_type}")print(f"Cors:{bucket.cors}")print(f"Default Event Based Hold:{bucket.default_event_based_hold}")print(f"Default KMS Key Name:{bucket.default_kms_key_name}")print(f"Metageneration:{bucket.metageneration}")print(f"Public Access Prevention:{bucket.iam_configuration.public_access_prevention}")print(f"Retention Effective Time:{bucket.retention_policy_effective_time}")print(f"Retention Period:{bucket.retention_period}")print(f"Retention Policy Locked:{bucket.retention_policy_locked}")print(f"Object Retention Mode:{bucket.object_retention_mode}")print(f"Requester Pays:{bucket.requester_pays}")print(f"Self Link:{bucket.self_link}")print(f"Time Created:{bucket.time_created}")print(f"Versioning Enabled:{bucket.versioning_enabled}")print(f"Labels:{bucket.labels}")

namespacegcs=::google::cloud::storage;using::google::cloud::StatusOr;[](gcs::Clientclient,std::stringconst&bucket_name,std::stringconst&object_name){autooriginal=client.GetObjectMetadata(bucket_name,object_name);if(!original)throwstd::move(original).status();autoconstuntil=std::chrono::system_clock::now()+std::chrono::hours(24);autoupdated=client.PatchObject(bucket_name,object_name,gcs::ObjectMetadataPatchBuilder().SetRetention(gcs::ObjectRetention{gcs::ObjectRetentionUnlocked(),until}),gcs::OverrideUnlockedRetention(true),gcs::IfMetagenerationMatch(original->metageneration()));if(!updated)throwstd::move(updated).status();std::cout <<"Successfully updated object retention configuration: "            <<*updated <<"\n";}

usingGoogle.Cloud.Storage.V1;usingSystem;usingObject=Google.Apis.Storage.v1.Data.Object;publicclassSetObjectRetentionPolicySample{publicGoogle.Apis.Storage.v1.Data.ObjectSetObjectRetentionPolicy(stringbucketName="your-unique-bucket-name",// A bucket that has object retention enabledstringobjectName="your-object-name")// An object that does not have a retention policy set{varstorage=StorageClient.Create();varfile=storage.GetObject(bucketName,objectName);file.Retention=newObject.RetentionData{Mode="Unlocked",RetainUntilTimeDateTimeOffset=DateTimeOffset.UtcNow.AddDays(10)};file=storage.UpdateObject(file);Console.WriteLine($"The retention policy for object {objectName} was set to:");Console.WriteLine("Mode: "+file.Retention.Mode);Console.WriteLine("RetainUntilTime: "+file.Retention.RetainUntilTimeDateTimeOffset.ToString());// To modify an existing policy on an Unlocked object, pass in the override parameterfile.Retention=newObject.RetentionData{Mode="Unlocked",RetainUntilTimeDateTimeOffset=DateTimeOffset.UtcNow.AddDays(9)};file=storage.UpdateObject(file,newUpdateObjectOptions{OverrideUnlockedRetention=true});Console.WriteLine($"The retention policy for object {objectName} was updated to:");Console.WriteLine("Mode: "+file.Retention.Mode);Console.WriteLine("RetainUntilTime: "+file.Retention.RetainUntilTimeDateTimeOffset.ToString());returnfile;}}

import staticjava.time.OffsetDateTime.now;importcom.google.cloud.storage.Blob;importcom.google.cloud.storage.BlobId;importcom.google.cloud.storage.BlobInfo.Retention;importcom.google.cloud.storage.Storage;importcom.google.cloud.storage.StorageException;importcom.google.cloud.storage.StorageOptions;publicclassSetObjectRetentionPolicy{publicstaticvoidsetObjectRetentionPolicy(StringprojectId,StringbucketName,StringobjectName)throwsStorageException{// The ID of your GCP project// String projectId = "your-project-id";// The ID of your GCS bucket that has object retention enabled// String bucketName = "your-unique-bucket-name";// The ID of your GCS object// String objectName = "your-object-name";Storagestorage=StorageOptions.newBuilder().setProjectId(projectId).build().getService();BlobIdblobId=BlobId.of(bucketName,objectName);Blobblob=storage.get(blobId);if(blob==null){System.out.println("The object "+objectName+" was not found in "+bucketName);return;}Blobupdated=blob.toBuilder().setRetention(Retention.newBuilder().setMode(Retention.Mode.UNLOCKED).setRetainUntilTime(now().plusDays(10)).build()).build().update();System.out.println("Retention policy for object "+objectName+" was set to:");System.out.println(updated.getRetention().toString());// To modify an existing policy on an Unlocked object, pass in the override parameterblob.toBuilder().setRetention(updated.getRetention().toBuilder().setRetainUntilTime(now().plusDays(9)).build()).build().update(Storage.BlobTargetOption.overrideUnlockedRetention(true));System.out.println("Retention policy for object "+objectName+" was updated to:");System.out.println(storage.get(blobId).getRetention().toString());}}

/** * TODO(developer): Uncomment the following lines before running the sample. */// The ID of your GCS bucket// const bucketName = 'your-unique-bucket-name';// The new ID for your GCS file// const destFileName = 'your-new-file-name';// The content to be uploaded in the GCS file// const contents = 'your file content';// Imports the Google Cloud client libraryconst{Storage}=require('@google-cloud/storage');// Creates a client// The bucket in the sample below will be created in the project associated with this client.// For more information, please see https://cloud.google.com/docs/authentication/production or https://googleapis.dev/nodejs/storage/latest/Storage.htmlconststorage=newStorage();asyncfunctionsetObjectRetentionPolicy(){// Get a reference to the bucketconstmyBucket=storage.bucket(bucketName);// Create a reference to a file objectconstfile=myBucket.file(destFileName);// Save the file dataawaitfile.save(contents);// Set the retention policy for the fileconstretentionDate=newDate();retentionDate.setDate(retentionDate.getDate()+10);const[metadata]=awaitfile.setMetadata({retention:{mode:'Unlocked',retainUntilTime:retentionDate.toISOString(),},});console.log(`Retention policy for file${file.name} was set to:${metadata.retention.mode}`);// To modify an existing policy on an unlocked file object, pass in the override parameterconstnewRetentionDate=newDate(retentionDate.getDate());newRetentionDate.setDate(newRetentionDate.getDate()+9);const[newMetadata]=awaitfile.setMetadata({retention:{mode:'Unlocked',retainUntilTime:newRetentionDate,},overrideUnlockedRetention:true,});console.log(`Retention policy for file${file.name} was updated to:${newMetadata.retention.retainUntilTime}`);}setObjectRetentionPolicy().catch(console.error);

use Google\Cloud\Storage\StorageClient;/** * Sets a bucket's retention policy. * * @param string $bucketName The name of your Cloud Storage bucket. *        (e.g. 'my-bucket') * @param string $objectName The name of your Cloud Storage object. *        (e.g. 'my-object') */function set_object_retention_policy(string $bucketName, string $objectName): void{    $storage = new StorageClient();    $bucket = $storage->bucket($bucketName);    $object = $bucket->object($objectName);    $expires = (new \DateTime)->add(        \DateInterval::createFromDateString('+10 days')    );    // To modify an existing policy on an Unlocked object, pass the override parameter    $object->update([        'retention' => [            'mode' => 'Unlocked',            'retainUntilTime' => $expires->format(\DateTime::RFC3339)        ],        'overrideUnlockedRetention' => true    ]);    printf(        'Retention policy for object %s was updated to: %s' . PHP_EOL,        $objectName,        $object->info()['retention']['retainUntilTime']    );}

fromgoogle.cloudimportstoragedefset_object_retention_policy(bucket_name,contents,destination_blob_name):"""Set the object retention policy of a file."""# The ID of your GCS bucket# bucket_name = "your-bucket-name"# The contents to upload to the file# contents = "these are my contents"# The ID of your GCS object# destination_blob_name = "storage-object-name"storage_client=storage.Client()bucket=storage_client.bucket(bucket_name)blob=bucket.blob(destination_blob_name)blob.upload_from_string(contents)# Set the retention policy for the file.blob.retention.mode="Unlocked"retention_date=datetime.datetime.now(datetime.timezone.utc)+datetime.timedelta(days=10)blob.retention.retain_until_time=retention_dateblob.patch()print(f"Retention policy for file{destination_blob_name} was set to:{blob.retention.mode}.")# To modify an existing policy on an unlocked file object, pass in the override parameter.new_retention_date=datetime.datetime.now(datetime.timezone.utc)+datetime.timedelta(days=9)blob.retention.retain_until_time=new_retention_dateblob.patch(override_unlocked_retention=True)print(f"Retention policy for file{destination_blob_name} was updated to:{blob.retention.retain_until_time}.")

namespacegcs=::google::cloud::storage;using::google::cloud::StatusOr;[](gcs::Clientclient,std::stringconst&bucket_name,std::stringconst&object_name){StatusOr<gcs::ObjectMetadata>object_metadata=client.GetObjectMetadata(bucket_name,object_name);if(!object_metadata)throwstd::move(object_metadata).status();std::cout <<"The metadata for object " <<object_metadata->name()            <<" in bucket " <<object_metadata->bucket() <<" is "            <<*object_metadata <<"\n";}

usingGoogle.Cloud.Storage.V1;usingSystem;publicclassGetMetadataSample{publicGoogle.Apis.Storage.v1.Data.ObjectGetMetadata(stringbucketName="your-unique-bucket-name",stringobjectName="your-object-name"){varstorage=StorageClient.Create();varstorageObject=storage.GetObject(bucketName,objectName,newGetObjectOptions{Projection=Projection.Full});Console.WriteLine($"Bucket:\t{storageObject.Bucket}");Console.WriteLine($"CacheControl:\t{storageObject.CacheControl}");Console.WriteLine($"ComponentCount:\t{storageObject.ComponentCount}");Console.WriteLine($"ContentDisposition:\t{storageObject.ContentDisposition}");Console.WriteLine($"ContentEncoding:\t{storageObject.ContentEncoding}");Console.WriteLine($"ContentLanguage:\t{storageObject.ContentLanguage}");Console.WriteLine($"ContentType:\t{storageObject.ContentType}");Console.WriteLine($"Crc32c:\t{storageObject.Crc32c}");Console.WriteLine($"ETag:\t{storageObject.ETag}");Console.WriteLine($"Generation:\t{storageObject.Generation}");Console.WriteLine($"Id:\t{storageObject.Id}");Console.WriteLine($"Kind:\t{storageObject.Kind}");Console.WriteLine($"KmsKeyName:\t{storageObject.KmsKeyName}");Console.WriteLine($"Md5Hash:\t{storageObject.Md5Hash}");Console.WriteLine($"MediaLink:\t{storageObject.MediaLink}");Console.WriteLine($"Metageneration:\t{storageObject.Metageneration}");Console.WriteLine($"Name:\t{storageObject.Name}");Console.WriteLine($"Retention:\t{storageObject.Retention}");Console.WriteLine($"Size:\t{storageObject.Size}");Console.WriteLine($"StorageClass:\t{storageObject.StorageClass}");Console.WriteLine($"TimeCreated:\t{storageObject.TimeCreated}");Console.WriteLine($"Updated:\t{storageObject.Updated}");booleventBasedHold=storageObject.EventBasedHold??false;Console.WriteLine("Event-based hold enabled? {0}",eventBasedHold);booltemporaryHold=storageObject.TemporaryHold??false;Console.WriteLine("Temporary hold enabled? {0}",temporaryHold);Console.WriteLine($"RetentionExpirationTime\t{storageObject.RetentionExpirationTime}");if(storageObject.Metadata!=null){Console.WriteLine("Metadata: ");foreach(varmetadatainstorageObject.Metadata){Console.WriteLine($"{metadata.Key}:\t{metadata.Value}");}}Console.WriteLine($"CustomTime:\t{storageObject.CustomTime}");returnstorageObject;}}

importcom.google.cloud.storage.Blob;importcom.google.cloud.storage.Storage;importcom.google.cloud.storage.StorageException;importcom.google.cloud.storage.StorageOptions;importjava.util.Date;importjava.util.Map;publicclassGetObjectMetadata{publicstaticvoidgetObjectMetadata(StringprojectId,StringbucketName,StringblobName)throwsStorageException{// The ID of your GCP project// String projectId = "your-project-id";// The ID of your GCS bucket// String bucketName = "your-unique-bucket-name";// The ID of your GCS object// String objectName = "your-object-name";Storagestorage=StorageOptions.newBuilder().setProjectId(projectId).build().getService();// Select all fields// Fields can be selected individually e.g. Storage.BlobField.CACHE_CONTROLBlobblob=storage.get(bucketName,blobName,Storage.BlobGetOption.fields(Storage.BlobField.values()));// Print blob metadataSystem.out.println("Bucket: "+blob.getBucket());System.out.println("CacheControl: "+blob.getCacheControl());System.out.println("ComponentCount: "+blob.getComponentCount());System.out.println("ContentDisposition: "+blob.getContentDisposition());System.out.println("ContentEncoding: "+blob.getContentEncoding());System.out.println("ContentLanguage: "+blob.getContentLanguage());System.out.println("ContentType: "+blob.getContentType());System.out.println("CustomTime: "+blob.getCustomTime());System.out.println("Crc32c: "+blob.getCrc32c());System.out.println("Crc32cHexString: "+blob.getCrc32cToHexString());System.out.println("ETag: "+blob.getEtag());System.out.println("Generation: "+blob.getGeneration());System.out.println("Id: "+blob.getBlobId());System.out.println("KmsKeyName: "+blob.getKmsKeyName());System.out.println("Md5Hash: "+blob.getMd5());System.out.println("Md5HexString: "+blob.getMd5ToHexString());System.out.println("MediaLink: "+blob.getMediaLink());System.out.println("Metageneration: "+blob.getMetageneration());System.out.println("Name: "+blob.getName());System.out.println("Size: "+blob.getSize());System.out.println("StorageClass: "+blob.getStorageClass());System.out.println("TimeCreated: "+newDate(blob.getCreateTime()));System.out.println("Last Metadata Update: "+newDate(blob.getUpdateTime()));System.out.println("Object Retention Policy: "+blob.getRetention());BooleantemporaryHoldIsEnabled=(blob.getTemporaryHold()!=null &&blob.getTemporaryHold());System.out.println("temporaryHold: "+(temporaryHoldIsEnabled?"enabled":"disabled"));BooleaneventBasedHoldIsEnabled=(blob.getEventBasedHold()!=null &&blob.getEventBasedHold());System.out.println("eventBasedHold: "+(eventBasedHoldIsEnabled?"enabled":"disabled"));if(blob.getRetentionExpirationTime()!=null){System.out.println("retentionExpirationTime: "+newDate(blob.getRetentionExpirationTime()));}if(blob.getMetadata()!=null){System.out.println("\n\n\nUser metadata:");for(Map.Entry<String,String>userMetadata:blob.getMetadata().entrySet()){System.out.println(userMetadata.getKey()+"="+userMetadata.getValue());}}}}

/** * TODO(developer): Uncomment the following lines before running the sample. */// The ID of your GCS bucket// const bucketName = 'your-unique-bucket-name';// The ID of your GCS file// const fileName = 'your-file-name';// Imports the Google Cloud client libraryconst{Storage}=require('@google-cloud/storage');// Creates a clientconststorage=newStorage();asyncfunctiongetMetadata(){// Gets the metadata for the fileconst[metadata]=awaitstorage.bucket(bucketName).file(fileName).getMetadata();console.log(`Bucket:${metadata.bucket}`);console.log(`CacheControl:${metadata.cacheControl}`);console.log(`ComponentCount:${metadata.componentCount}`);console.log(`ContentDisposition:${metadata.contentDisposition}`);console.log(`ContentEncoding:${metadata.contentEncoding}`);console.log(`ContentLanguage:${metadata.contentLanguage}`);console.log(`ContentType:${metadata.contentType}`);console.log(`CustomTime:${metadata.customTime}`);console.log(`Crc32c:${metadata.crc32c}`);console.log(`ETag:${metadata.etag}`);console.log(`Generation:${metadata.generation}`);console.log(`Id:${metadata.id}`);console.log(`KmsKeyName:${metadata.kmsKeyName}`);console.log(`Md5Hash:${metadata.md5Hash}`);console.log(`MediaLink:${metadata.mediaLink}`);console.log(`Metageneration:${metadata.metageneration}`);console.log(`Name:${metadata.name}`);console.log(`Size:${metadata.size}`);console.log(`StorageClass:${metadata.storageClass}`);console.log(`TimeCreated:${newDate(metadata.timeCreated)}`);console.log(`Last Metadata Update:${newDate(metadata.updated)}`);console.log(`TurboReplication:${metadata.rpo}`);console.log(`temporaryHold:${metadata.temporaryHold?'enabled':'disabled'}`);console.log(`eventBasedHold:${metadata.eventBasedHold?'enabled':'disabled'}`);if(metadata.retentionExpirationTime){console.log(`retentionExpirationTime:${newDate(metadata.retentionExpirationTime)}`);}if(metadata.metadata){console.log('\n\n\nUser metadata:');for(constkeyinmetadata.metadata){console.log(`${key}=${metadata.metadata[key]}`);}}}getMetadata().catch(console.error);

use Google\Cloud\Storage\StorageClient;/** * List object metadata. * * @param string $bucketName The name of your Cloud Storage bucket. *        (e.g. 'my-bucket') * @param string $objectName The name of your Cloud Storage object. *        (e.g. 'my-object') */function object_metadata(string $bucketName, string $objectName): void{    $storage = new StorageClient();    $bucket = $storage->bucket($bucketName);    $object = $bucket->object($objectName);    $info = $object->info();    if (isset($info['name'])) {        printf('Blob: %s' . PHP_EOL, $info['name']);    }    if (isset($info['bucket'])) {        printf('Bucket: %s' . PHP_EOL, $info['bucket']);    }    if (isset($info['storageClass'])) {        printf('Storage class: %s' . PHP_EOL, $info['storageClass']);    }    if (isset($info['id'])) {        printf('ID: %s' . PHP_EOL, $info['id']);    }    if (isset($info['size'])) {        printf('Size: %s' . PHP_EOL, $info['size']);    }    if (isset($info['updated'])) {        printf('Updated: %s' . PHP_EOL, $info['updated']);    }    if (isset($info['generation'])) {        printf('Generation: %s' . PHP_EOL, $info['generation']);    }    if (isset($info['metageneration'])) {        printf('Metageneration: %s' . PHP_EOL, $info['metageneration']);    }    if (isset($info['etag'])) {        printf('Etag: %s' . PHP_EOL, $info['etag']);    }    if (isset($info['crc32c'])) {        printf('Crc32c: %s' . PHP_EOL, $info['crc32c']);    }    if (isset($info['md5Hash'])) {        printf('MD5 Hash: %s' . PHP_EOL, $info['md5Hash']);    }    if (isset($info['contentType'])) {        printf('Content-type: %s' . PHP_EOL, $info['contentType']);    }    if (isset($info['temporaryHold'])) {        printf('Temporary hold: %s' . PHP_EOL, ($info['temporaryHold'] ? 'enabled' : 'disabled'));    }    if (isset($info['eventBasedHold'])) {        printf('Event-based hold: %s' . PHP_EOL, ($info['eventBasedHold'] ? 'enabled' : 'disabled'));    }    if (isset($info['retentionExpirationTime'])) {        printf('Retention Expiration Time: %s' . PHP_EOL, $info['retentionExpirationTime']);    }    if (isset($info['retention'])) {        printf('Retention mode: %s' . PHP_EOL, $info['retention']['mode']);        printf('Retain until time is: %s' . PHP_EOL, $info['retention']['retainUntilTime']);    }    if (isset($info['customTime'])) {        printf('Custom Time: %s' . PHP_EOL, $info['customTime']);    }    if (isset($info['metadata'])) {        printf('Metadata: %s' . PHP_EOL, print_r($info['metadata'], true));    }}

fromgoogle.cloudimportstoragedefblob_metadata(bucket_name,blob_name):"""Prints out a blob's metadata."""# bucket_name = 'your-bucket-name'# blob_name = 'your-object-name'storage_client=storage.Client()bucket=storage_client.bucket(bucket_name)# Retrieve a blob, and its metadata, from Google Cloud Storage.# Note that `get_blob` differs from `Bucket.blob`, which does not# make an HTTP request.blob=bucket.get_blob(blob_name)print(f"Blob:{blob.name}")print(f"Bucket:{blob.bucket.name}")print(f"Storage class:{blob.storage_class}")print(f"ID:{blob.id}")print(f"Size:{blob.size} bytes")print(f"Updated:{blob.updated}")print(f"Generation:{blob.generation}")print(f"Metageneration:{blob.metageneration}")print(f"Etag:{blob.etag}")print(f"Owner:{blob.owner}")print(f"Component count:{blob.component_count}")print(f"Crc32c:{blob.crc32c}")print(f"md5_hash:{blob.md5_hash}")print(f"Cache-control:{blob.cache_control}")print(f"Content-type:{blob.content_type}")print(f"Content-disposition:{blob.content_disposition}")print(f"Content-encoding:{blob.content_encoding}")print(f"Content-language:{blob.content_language}")print(f"Metadata:{blob.metadata}")print(f"Medialink:{blob.media_link}")print(f"Custom Time:{blob.custom_time}")print("Temporary hold: ","enabled"ifblob.temporary_holdelse"disabled")print("Event based hold: ","enabled"ifblob.event_based_holdelse"disabled",)print(f"Retention mode:{blob.retention.mode}")print(f"Retention retain until time:{blob.retention.retain_until_time}")ifblob.retention_expiration_time:print(f"retentionExpirationTime:{blob.retention_expiration_time}")