SAS token for azure storage container failed 403 error

Question

Trying to list the files stored in blob storage container. Generated SAS url and used the following program.but getting error

Error - Failed to fetch data: 403

import 'dart:convert';
import 'dart:typed_data';
import 'package:crypto/crypto.dart';
import 'package:http/http.dart' as http;

void main() async {
  final String folderURL = 'https://myblobaccount.blob.core.windows.net/azure-webjobs-hosts?sp=r&st=2024-03-22T07:21:47Z&se=2024-03-22T15:21:47Z&sv=2022-11-02&sr=c&sig=Eg%2B04lD3EWLo2wGocU9mqNjKwqKmo04zSCH0Dbsjqlg%3D';//$storageBlobEndpoint/$containerName?$sasToken';

  // Make a request to list the blobs within the folder
  final response = await http.get(Uri.parse(folderURL));
  if (response.statusCode == 200) {
    final List<dynamic> blobs = json.decode(response.body);
    print("Files in the folder:");
    for (var blob in blobs) {
      print(blob['name']);
    }
  } else {
    print('Failed to fetch data: ${response.statusCode}');
  }
}

what could be the issue?

Answer 1

Error - Failed to fetch data: 403

Even when I tried with the same Container URL, I got the same error.

Error:

The above error occurred due to using an incorrect URL, which you passed to make the request.

To list the blobs, you need to use the URL below.

Request:

https://myaccount.blob.core.windows.net/mycontainer?restype=container&comp=list&<Your sas token>

Output:

Reference:

List Blobs (REST API) - Azure Storage | Microsoft Learn