Uploading a file to a Google Drive Folder programmatically with Python

To upload a file to a Google Drive folder programmatically, you need to use the Google Drive API. Below is an example of Python code to upload a file to a specific folder in Google Drive.

Steps to Follow:

1. Set Up Google Drive API:

   • Go to the Google Cloud Console.
   • Create a new project (or use an existing one).
   • Enable the "Google Drive API" for your project.
   • Create credentials for a "Desktop App" and download the credentials.json file.

    

2. Install the Required Libraries: Install the google-auth, google-auth-oauthlib, and googleapiclient Python libraries:

   pip install google-auth google-auth-oauthlib googleapiclient
   

    

3. Code for Uploading a File:

   from google.oauth2.credentials import Credentials
   from googleapiclient.discovery import build
   from googleapiclient.http import MediaFileUpload
   import os
   
   # Path to your credentials.json file
   CREDENTIALS_FILE = 'credentials.json'
   SCOPES = ['https://www.googleapis.com/auth/drive.file']
   
   def authenticate_google_drive():
       # Check if token.json exists
       if os.path.exists('token.json'):
           creds = Credentials.from_authorized_user_file('token.json', SCOPES)
       else:
           from google_auth_oauthlib.flow import InstalledAppFlow
           flow = InstalledAppFlow.from_client_secrets_file(CREDENTIALS_FILE, SCOPES)
           creds = flow.run_local_server(port=0)
   
           # Save the credentials for future use
           with open('token.json', 'w') as token_file:
               token_file.write(creds.to_json())
   
       return creds
   
   def upload_file_to_drive(file_path, folder_id):
       # Authenticate
       creds = authenticate_google_drive()
       service = build('drive', 'v3', credentials=creds)
   
       # Get the file name
       file_name = os.path.basename(file_path)
   
       # Set up the file metadata
       file_metadata = {
           'name': file_name,
           'parents': [folder_id]  # Specify the folder ID
       }
   
       # Upload the file
       media = MediaFileUpload(file_path, resumable=True)
       uploaded_file = service.files().create(
           body=file_metadata,
           media_body=media,
           fields='id'
       ).execute()
   
       print(f"File uploaded successfully! File ID: {uploaded_file.get('id')}")
   
   # Example usage
   file_to_upload = 'example.txt'  # Path to your file
   drive_folder_id = 'your-folder-id'  # Replace with the target Google Drive folder ID
   upload_file_to_drive(file_to_upload, drive_folder_id)

Key Points:

• Replace 'example.txt' with the file path you want to upload.
• Replace 'your-folder-id' with the folder ID of the target Google Drive folder.
  • You can find the folder ID in the URL of the Google Drive folder: https://drive.google.com/drive/folders/<folder-id>.

Authentication Notes:

• The first time you run the script, it will open a browser to authenticate with your Google account and generate a token.json file. Future runs will use this file for authentication.