Batch Processing

Use batch processing when converting folders, queues, or mixed document sets. Dongler returns one result per path so one failed file does not stop the batch.

This is the recommended pattern for ingestion jobs. Treat each result as a separate success or failure, log the error, and continue.

Python

import dongler

for result in dongler.load_many(["notes.txt", "invoice.pdf"]):
    if result["ok"]:
        print(result["document"].to_markdown())
    else:
        print(f"{result['path']}: {result['error']}")

TypeScript

import { loadMany } from "@cristianexer/dongler";

for (const result of loadMany(["notes.txt", "invoice.pdf"])) {
  if (result.ok) {
    console.log(result.document!.toMarkdown());
  } else {
    console.error(`${result.path}: ${result.error}`);
  }
}

Rust

use dongler_core::load_many;

for result in load_many(["notes.txt", "invoice.pdf"]) {
    if result.ok {
        println!("{}", result.document.unwrap().to_markdown().unwrap());
    } else {
        eprintln!("{}: {}", result.path, result.error.unwrap());
    }
}

Batch results include path, ok, document, and error.