hasPostgrestError

hasPostgrestError<T>(response): response is PostgrestResponse<T> & Object

Type guard to check if a PostgrestResponse has an error

Type Parameters

Type Parameter
T

Parameters

Parameter	Type	Description
response	PostgrestResponse<T>	The Postgrest response to check

Returns

response is PostgrestResponse<T> & Object

true if the response contains an error

Example

const response = await client.from('products').select('*').execute()

if (hasPostgrestError(response)) {
  // TypeScript knows: response.error is PostgrestError
  console.error('Query failed:', response.error.message)
  if (response.error.hint) {
    console.log('Hint:', response.error.hint)
  }
  return
}

// TypeScript knows: response.data is T (not null)
console.log('Found', response.data.length, 'products')