Implementation:Openai Openai node Files WaitForProcessing

Knowledge Sources	openai-node OpenAI Files API
Domains	Fine_Tuning, Async_Processing
Last Updated	2026-02-15 00:00 GMT

Overview

Concrete tool for polling file processing status until completion provided by the openai-node SDK.

Description

The Files.waitForProcessing() method polls the /files/{id} endpoint at configurable intervals until the file reaches processed status or the timeout is exceeded. It also supports Files.retrieve() for a single status check.

Usage

Call client.files.waitForProcessing(fileId) after uploading a training file and before creating a fine-tuning job.

Code Reference

Source Location

• Repository: openai-node
• File: src/resources/files.ts
• Lines: L44-46 (retrieve), L79-100 (waitForProcessing)

Signature

class Files extends APIResource {
  retrieve(
    fileID: string,
    options?: RequestOptions,
  ): APIPromise<FileObject>;

  waitForProcessing(
    id: string,
    opts?: { pollInterval?: number; maxWait?: number },
  ): Promise<FileObject>;
}

Import

import OpenAI from 'openai';
// Access via: client.files.waitForProcessing(...)

I/O Contract

Inputs

Name	Type	Required	Description
id	string	Yes	File ID from upload
pollInterval	number	No (default 5000ms)	Polling interval in milliseconds
maxWait	number	No (default 30 minutes)	Maximum wait time in milliseconds

Outputs

Name	Type	Description
fileObject	FileObject	File with updated status field ('processed')

Usage Examples

import OpenAI from 'openai';

const client = new OpenAI();

// Upload file
const file = await client.files.create({
  file: fs.createReadStream('training.jsonl'),
  purpose: 'fine-tune',
});

// Wait for processing
const processedFile = await client.files.waitForProcessing(file.id);
console.log('Status:', processedFile.status); // 'processed'

Related Pages

Implements Principle

• Principle:Openai_Openai_node_File_Processing_Verification