JavaScript: Check if file exists (original) (raw)

• Introduction
• Installing
• Initializing
• TypeScript support
• 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
• Set an abort signal
• Retrieve one row of data
• Retrieve zero or one row of data
• Retrieve as a CSV
• Override type of successful response
• Partially override or replace type of successful response
• Using explain
• Auth
• Overview
• Create a new user
• Listen to auth events
• Create an anonymous user
• Sign in a user
• Sign in with ID token (native sign-in)
• Sign in a user through OTP
• Sign in a user through OAuth
• Sign in a user through SSO
• Sign in a user through Web3 (Solana, Ethereum)
• Get user claims from verified JWT
• Sign out a user
• Send a password reset request
• 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
• Exchange an auth code for a session
• Start auto-refresh session (non-browser)
• Stop auto-refresh session (non-browser)
• Initialize client session
• Auth MFA
• Enroll a factor
• Create a challenge
• Verify a challenge
• Create and verify a challenge
• Unenroll a factor
• Get Authenticator Assurance Level
• List all factors for current user
• OAuth Server
• Get authorization details
• Approve authorization
• Deny authorization
• List grants
• Revoke grant
• 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
• Sign out a user (admin)
• Delete a factor for a user
• List all factors for a user (admin)
• OAuth Admin
• List OAuth clients
• Get OAuth client
• Create OAuth client
• Update OAuth client
• Delete OAuth client
• Regenerate client secret
• Edge Functions
• Invokes a Supabase Edge Function.
• Realtime
• Subscribe to channel
• Unsubscribe from a channel
• Unsubscribe from all channels
• Retrieve all channels
• Broadcast a message
• Storage
• File Buckets
• Access a storage bucket
• List all buckets
• Retrieve a bucket
• Create a bucket
• Empty a bucket
• Update a bucket
• Delete a bucket
• Upload a file
• Replace an existing file
• Move an existing file
• Copy an existing file
• Create a signed URL
• Create signed URLs
• Create signed upload URL
• Upload to a signed URL
• Retrieve public URL
• Download a file
• Delete files in a bucket
• List all files in a bucket
• Check if file exists
• Get file metadata
• List files (v2)
• Convert file to base64
• Analytics Buckets
• Access an analytics bucket
• Create a new analytics bucket
• List analytics buckets
• Delete an analytics bucket
• Vector Buckets
• Access a vector bucket
• Create a vector bucket
• Delete a vector bucket
• Retrieve a vector bucket
• List all vector buckets
• Create a vector index
• Delete a vector index
• Retrieve a vector index
• List all vector indexes
• Access a vector index
• Delete vectors from index
• Retrieve vectors from index
• List vectors in index
• Add vectors to index
• Search vectors in index

Checks the existence of a file.

Parameters

• path

(Required)
The file path, including the file name. For example `folder/image.png`.