Principle:Openai Openai node File Processing Verification
| Knowledge Sources | |
|---|---|
| Domains | Fine_Tuning, Async_Processing |
| Last Updated | 2026-02-15 00:00 GMT |
Overview
A principle for verifying that an uploaded file has been successfully processed and is ready for use in downstream operations.
Description
File Processing Verification addresses the asynchronous nature of file uploads. After a file is uploaded, the server processes it (validates format, counts tokens, checks for errors). The file transitions through states: uploaded → processing → processed (or error). Downstream operations (like fine-tuning job creation) require the file to be in processed status.
The verification pattern uses polling: repeatedly retrieve the file status at intervals until it reaches a terminal state or a timeout is exceeded.
Usage
Use this principle after uploading a training file and before creating a fine-tuning job. The SDK provides a built-in waitForProcessing() helper that handles the polling loop.
Theoretical Basis
File processing verification follows a Polling Loop pattern:
function waitForProcessing(fileId, pollInterval, maxWait):
startTime = now()
while (now() - startTime < maxWait):
file = await files.retrieve(fileId)
if file.status == 'processed':
return file
if file.status == 'error':
throw FileProcessingError(file)
sleep(pollInterval)
throw TimeoutError