Downloading Objects from Google Cloud Storage

Uploading Objects in Google Cloud Storage

FAQs on Uploading and Downloading Objects in Google Cloud Storage: Command Line and API

Downloading objects from Google Cloud Storage is similar to uploading. Below is the sample illustration.

Command Line

Step 1: Use the below command to download the object from gcs:

gsutil cp gs://[BUCKET_NAME]/[OBJECT_NAME] [LOCAL_DESTINATION_PATH]

The above command will download the object BUCKET_NAME/OBJECT_NAME to your LOCAL_DESTINATION_PATH.

Example: Let us download sample.txt to a sampleFolder from the bucket as below

gsutil cp gs://gfgbucket/sample.txt ./sampleFolder

Output

Copying gs://gfgbucket/sample.txt...
/ [1 files][   22.0 B/   22.0 B]                                                
Operation completed over 1 objects/22.0 B.

API

Client Libraries:

Step 2: Use the below sample code written in Java and Python using Google Client Library to download your object.

Java

import com.google.cloud.storage.Blob; 
import com.google.cloud.storage.Storage; 
import com.google.cloud.storage.StorageOptions; 
  
import java.nio.file.Path; 
import java.nio.file.Paths; 
  
public class GCSDownloader { 
  
    public static void main(String[] args) { 
        // Replace these values with your actual GCP project ID and bucket name 
        String projectId = "your-project-id"; 
        String bucketName = "your-bucket-name"; 
  
        // Name of the object in the Cloud Storage bucket that you want to download 
        String objectName = "your-object-name"; 
  
        // Path to the local file where you want to save the downloaded file 
        String localFilePath = "path/to/local/downloaded-file.txt"; 
  
        // Create a Storage client 
        Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService(); 
  
        // Get the Blob reference and download the file 
        Blob blob = storage.get(bucketName, objectName); 
        blob.downloadTo(Paths.get(localFilePath)); 
  
        System.out.println("File downloaded from Cloud Storage: " + blob.getName()); 
    } 
} 

Python3

# Importing the Google Cloud client library 
from google.cloud import storage 
  
# Initializing the client 
client = storage.Client() 
  
# Getting the bucket 
bucket = client.get_bucket('[BUCKET_NAME]') 
  
# Getting the blob (object) in the bucket 
blob = bucket.blob('[OBJECT_NAME]') 
  
# Downloading the blob to a local file 
blob.download_to_filename('[LOCAL_DESTINATION_PATH]') 
  
print(f'File downloaded from Cloud Storage: {blob.name}') 

Output:

File downloaded from Cloud Storage: sample.txt

REST API:

Step 3: Use below command to download object using cURL command.

curl -H "Authorization: Bearer [YOUR_ACCESS_TOKEN]"
 "https://storage.googleapis.com/storage/v1/b/[BUCKET_NAME]/o/[OBJECT_NAME]?alt=media" -o [LOCAL_DESTINATION_PATH]

Example: Let us download sample.txt to our sampleFolder as sample2 from the bucket as below

curl -H "Authorization: Bearer [YOUR_ACCESS_TOKEN]" "https://storage.googleapis.com/storage/v1/b/gfgbucket/o/sample2?alt=media" -o ./sampleFolder

Output:

ESFQHGX2Mir3gF5erD8xeoc8M1QolA1w0171" "https://storage.googleapis.com/storage/v1/b/gfgbucket/o/sample2?alt=media" -o ./sampleFolder/sample2
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                                       Dload  Upload   Total   Spent    Left  Speed
100    22  100    22    0     0     87      0 --:--:-- --:--:-- --:--:--    87

Uploading and Downloading Objects in Google Cloud Storage: Command Line and API

Cloud storage refers to storing your data in remote locations i.e., the cloud. Cloud Storage became increasingly popular in the information era. With tons of data in hand, storing them in the cloud is very affordable. By storing the data in the cloud, we can access the data at any time irrespective of the device and the location.

Tags:

#Geeks Premier League 2023 #Geeks Premier League #Google Cloud Platform