Make it async // return item as promise

[nikosgevre]

Describe the bug
We need to make the function async/await compatible. I need to return the result after the whole document is parsed.

To Reproduce
List the steps you followed and/or share your code to help us reproduce the bug

Expected behavior
Be able to await for the whole document to be parsed.

Screenshots, outputs or logs
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Desktop (please complete the following information):

Ubuntu 20.04

Additional context
Add any other context about the problem here.

[adrienjoly]

If I understand well, you can probably write your own function to achieve that. Something like:

import { PdfReader } from "pdfreader";

async function parsePdf(file) {
  const items = [];
  return new Promise((resolve, reject) => {
    new PdfReader().parseFileItems("test/sample.pdf", (err, item) => {
      if (err) reject(err);
      else if (!item) resolve(items);
      else if (item.text) items.push(item);
    });
  });
}

const items = await parsePdf("test.pdf");

Please let us know if that works for you.

[nikosgevre]

Thanks for the reply! :D

Yes it is working but I had already found a way to return it as a Promise and make it async/await compatible.

The point is that this would be a great feature if the package would return the final result as a Promise by default!

[MikeRalphson]

See https://github.com/limulus/call-me-maybe for one potential solution.

[abolajibisiriyu]

import { DataEntry, PdfReader } from "pdfreader";

export async function parsePdf(file: string) {
    const items: DataEntry[] = [];

    return new Promise<DataEntry[]>((resolve, reject) => {
        new PdfReader().parseFileItems(file, (err, item) => {
            if (err) reject(err);
            else if (!item) resolve(items);
            else if (item) items.push(item);
        });
    });
}