Flutter: Create a signed URL

Create signed url to download file without requiring permissions. This URL can be valid for a set number of seconds.

• Policy permissions required:
  • buckets permissions: none
  • objects permissions: select
• Refer to the Storage guide on how access control works

Parameters

• path

  (Required)

  The file path, including the file name. For example folder/image.png.

• expiresIn

  (Required)

  The number of seconds until the signed URL expires. For example, 60 for a URL which is valid for one minute.

• transform

  (Optional)

  Transform the asset before serving it to the client.

Examples

Create Signed URL

final String signedUrl = await supabase
  .storage
  .from('avatars')
  .createSignedUrl('avatar1.png', 60);

With transform

final String signedUrl = await supabase
  .storage
  .from('avatars')
  .createSignedUrl(
    'avatar1.png',
    60,
    transform: TransformOptions(
      width: 200,
      height: 200,
    ),
  );