Flutter: Download a file | Supabase Docs (original) (raw)

• Introduction
• Installing
• Initializing
• Upgrade guide
• Database
• Fetch data
• Insert data
• Update data
• Upsert data
• Delete data
• Call a Postgres function
• Using filters
• Column is equal to a value
• Column is not equal to a value
• Column is greater than a value
• Column is greater than or equal to a value
• Column is less than a value
• Column is less than or equal to a value
• Column matches a pattern
• Column matches a case-insensitive pattern
• Column is a value
• Column is in an array
• Column contains every element in a value
• Contained by value
• Greater than a range
• Greater than or equal to a range
• Less than a range
• Less than or equal to a range
• Mutually exclusive to a range
• With a common element
• Match a string
• Match an associated value
• Don't match the filter
• Match at least one filter
• Match the filter
• Using modifiers
• Return data after inserting
• Order the results
• Limit the number of rows returned
• Limit the query to a range
• Retrieve one row of data
• Retrieve zero or one row of data
• Retrieve as a CSV
• Using explain
• Auth
• Create a new user
• Listen to auth events
• Create an anonymous user
• Sign in a user
• Sign in with ID Token
• Sign in a user through OTP
• Sign in a user through OAuth
• Sign in a user through SSO
• Sign out a user
• Verify and log in through OTP
• Retrieve a session
• Retrieve a new session
• Retrieve a user
• Update a user
• Retrieve identities linked to a user
• Link an identity to a user
• Unlink an identity from a user
• Send a password reauthentication nonce
• Resend an OTP
• Set the session data
• Auth MFA
• Enroll a factor
• Create a challenge
• Verify a challenge
• Create and verify a challenge
• Unenroll a factor
• Get Authenticator Assurance Level
• Auth Admin
• Retrieve a user
• List all users
• Create a user
• Delete a user
• Send an email invite link
• Generate an email link
• Update a user
• Edge Functions
• Invokes a Supabase Edge Function.
• Realtime
• Listen to database changes
• Subscribe to channel
• Unsubscribe from a channel
• Unsubscribe from all channels
• Retrieve all channels
• Storage
• Create a bucket
• Retrieve a bucket
• List all buckets
• Update a bucket
• Delete a bucket
• Empty a bucket
• Upload a file
• Download a file
• List all files in a bucket
• Replace an existing file
• Move an existing file
• Delete files in a bucket
• Create a signed URL
• Retrieve public URL

Downloads a file.

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

Parameters

• path

(Required)
The full path and file name of the file to be downloaded. For example folder/image.png.

• transform

(Optional)
Transform the asset before serving it to the client.

Examples

Download file

final Uint8List file = await supabase
  .storage
  .from('avatars')
  .download('avatar1.png');

With transform

final Uint8List file = await supabase
  .storage
  .from('avatars')
  .download(
    'avatar1.png',
    transform: TransformOptions(
      width: 200,
      height: 200,
    ),
  );