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java/resources/files/methods/retrieve/index.md 2026-05-02 05:57 UTC to 2026-05-05 23:00 UTC

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Retrieve file

FileObject files().retrieve(FileRetrieveParamsparams = FileRetrieveParams.none(), RequestOptionsrequestOptions = RequestOptions.none())

get /files/{file_id}

Returns information about a specific file.

Parameters

  • FileRetrieveParams params

    • Optional<String> fileId

Returns

  • class FileObject:

    The File object represents a document that has been uploaded to OpenAI.

    • String id

      The file identifier, which can be referenced in the API endpoints.

    • long bytes

      The size of the file, in bytes.

    • long createdAt

      The Unix timestamp (in seconds) for when the file was created.

    • String filename

      The name of the file.

    • JsonValue; object_ "file"constant

      The object type, which is always file.

      • FILE("file")
    • Purpose purpose

      The intended purpose of the file. Supported values are assistants, assistants_output, batch, batch_output, fine-tune, fine-tune-results, vision, and user_data.

      • ASSISTANTS("assistants")

      • ASSISTANTS_OUTPUT("assistants_output")

      • BATCH("batch")

      • BATCH_OUTPUT("batch_output")

      • FINE_TUNE("fine-tune")

      • FINE_TUNE_RESULTS("fine-tune-results")

      • VISION("vision")

      • USER_DATA("user_data")

    • Status status

      Deprecated. The current status of the file, which can be either uploaded, processed, or error.

      • UPLOADED("uploaded")

      • PROCESSED("processed")

      • ERROR("error")

    • Optional<Long> expiresAt

      The Unix timestamp (in seconds) for when the file will expire.

    • Optional<String> statusDetails

      Deprecated. For details on why a fine-tuning training file failed validation, see the error field on fine_tuning.job.

Example

package com.openai.example;

import com.openai.client.OpenAIClient;
import com.openai.client.okhttp.OpenAIOkHttpClient;
import com.openai.models.files.FileObject;
import com.openai.models.files.FileRetrieveParams;

public final class Main {
    private Main() {}

    public static void main(String[] args) {
        OpenAIClient client = OpenAIOkHttpClient.fromEnv();

        FileObject fileObject = client.files().retrieve("file_id");
    }
}

Response

{
  "id": "id",
  "bytes": 0,
  "created_at": 0,
  "filename": "filename",
  "object": "file",
  "purpose": "assistants",
  "status": "uploaded",
  "expires_at": 0,
  "status_details": "status_details"
}