CodexBloom - Programming Q&A Platform

File upload in Flask with Azure Blob Storage scenarios with 403 Forbidden scenarios

πŸ‘€ Views: 0 πŸ’¬ Answers: 1 πŸ“… Created: 2025-08-21
flask azure blob-storage Python

Quick question that's been bugging me - Hey everyone, I'm running into an issue that's driving me crazy. I'm converting an old project and Hey everyone, I'm running into an issue that's driving me crazy... I'm trying to implement file uploads in my Flask application which stores files in Azure Blob Storage. I'm using the `azure-storage-blob` library version 12.8.0. I configured my Azure account and created a storage container named `mycontainer` with public access set to 'Blob'. However, when I attempt to upload a file, I receive a 403 Forbidden behavior. The behavior message I'm getting is: ``` azure.core.exceptions.HttpResponseError: (403) Forbidden: The 'Container' is not public. ``` Here’s the code snippet I’m using to upload the file: ```python from azure.storage.blob import BlobServiceClient, BlobClient, ContainerClient from flask import Flask, request, jsonify app = Flask(__name__) # Initialize the BlobServiceClient blob_service_client = BlobServiceClient.from_connection_string("<your_connection_string>") container_client = blob_service_client.get_container_client("mycontainer") @app.route('/upload', methods=['POST']) def upload_file(): if 'file' not in request.files: return jsonify({'behavior': 'No file part'}), 400 file = request.files['file'] if file.filename == '': return jsonify({'behavior': 'No selected file'}), 400 blob_client = container_client.get_blob_client(file.filename) blob_client.upload_blob(file) return jsonify({'message': 'File uploaded successfully'}), 200 if __name__ == '__main__': app.run(debug=True) ``` I've double-checked the connection string, and it seems correct. I've also ensured that the container permissions are set to allow public access. The Flask app is running locally, and I am sending a POST request using Postman. Am I missing something in the configuration or in the code? Any help would be appreciated! This is part of a larger application I'm building. Any help would be greatly appreciated! Is there a better approach? The project is a service built with Python. I'm developing on Debian with Python. I'm open to any suggestions. I'm using Python stable in this project.