How to Delete Files from Supabase Storage

1import { createClient } from '@supabase/supabase-js';
2
3const supabase = createClient(
4  process.env.NEXT_PUBLIC_SUPABASE_URL!,
5  process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!
6);
7
8// Delete a single file
9const { data, error } = await supabase.storage
10  .from('avatars')
11  .remove(['public/avatar-123.png']);
12
13if (error) {
14  console.error('Delete failed:', error.message);
15} else {
16  console.log('Deleted files:', data);
17}

1// Bulk delete multiple files from the same bucket
2const filesToDelete = [
3  'user-123/document-a.pdf',
4  'user-123/document-b.pdf',
5  'user-123/photos/vacation.jpg',
6];
7
8const { data, error } = await supabase.storage
9  .from('documents')
10  .remove(filesToDelete);
11
12if (error) {
13  console.error('Bulk delete failed:', error.message);
14} else {
15  console.log(`Successfully deleted ${data.length} files`);
16}

1-- Allow users to delete files in their own folder
2-- File paths follow the pattern: {user_id}/filename.ext
3CREATE POLICY "Users can delete their own files"
4ON storage.objects FOR DELETE
5TO authenticated
6USING (
7  bucket_id = 'documents'
8  AND (SELECT auth.uid())::text = (storage.foldername(name))[1]
9);
10
11-- If you also need a policy for public bucket cleanup
12CREATE POLICY "Users can delete their own uploads from public bucket"
13ON storage.objects FOR DELETE
14TO authenticated
15USING (
16  bucket_id = 'avatars'
17  AND (SELECT auth.uid())::text = (storage.foldername(name))[1]
18);

1async function deleteAllUserFiles(userId: string, bucket: string) {
2  // Step 1: List all files in the user's folder
3  const { data: files, error: listError } = await supabase.storage
4    .from(bucket)
5    .list(userId, { limit: 1000 });
6
7  if (listError) {
8    console.error('Failed to list files:', listError.message);
9    return;
10  }
11
12  if (!files || files.length === 0) {
13    console.log('No files to delete');
14    return;
15  }
16
17  // Step 2: Build full paths and delete
18  const filePaths = files.map((file) => `${userId}/${file.name}`);
19
20  const { data, error } = await supabase.storage
21    .from(bucket)
22    .remove(filePaths);
23
24  if (error) {
25    console.error('Delete failed:', error.message);
26  } else {
27    console.log(`Deleted ${data.length} files from ${userId}/`);
28  }
29}
30
31// Usage
32await deleteAllUserFiles('user-uuid-here', 'documents');

1async function deleteAndVerify(bucket: string, path: string) {
2  // Delete the file
3  const { data, error } = await supabase.storage
4    .from(bucket)
5    .remove([path]);
6
7  if (error) {
8    console.error(`Delete error: ${error.message}`);
9    return false;
10  }
11
12  // Verify deletion by trying to get a signed URL
13  const { data: urlData, error: urlError } = await supabase.storage
14    .from(bucket)
15    .createSignedUrl(path, 10);
16
17  if (urlError) {
18    console.log('File confirmed deleted (cannot generate URL)');
19    return true;
20  }
21
22  console.warn('File may still exist — check RLS policies');
23  return false;
24}