Doesn't work within Docker, while correctly runs on Local

[Jigar3]

• Operating System: Arch Linux
• Node Version: v12.13.0 (Local Machine), Docker (node:12.2.0-alpine)
• NPM Version:6.12.0
• csv-parser Version: 3.0.0

Expected Behavior

Running on Docker should return the same result.

Actual Behavior

While running on Docker, the promise Rejects, instead of resolving with the correct values. It works fine on the local machine I am running on.

How Do We Reproduce?

import csv from 'csv-parser';
import { Readable } from 'stream';

const parseCSVToJSON = (csvString: string) => {
    return new Promise((resolve, reject) => {
        logger.info(csvString);
        const results: Array<any> = [];
        Readable.from([csvString])
            .pipe(csv())
            .on('data', (data) => results.push(data))
            .on('end', () => {
                logger.info(results);
                if (results.length == 0) { reject([]); }
                else { resolve(results); }
            });
    });
};

This is the function I am using and calling it like below

const parsedData = await parseCSVToJSON(keyDrivers.toString()).catch(err => {
        return res.json({ args: req.body, data: '', err: err });
    });

return res.json({ args: req.body, data: parsedData });

So, on my local machine, I correctly get the response, but on Docker, I get the response of the catch block.

Any ideas why this might be happening? Any help appreciated.

[Jigar3]

I was able to fix this by using the same Node version on Docker, but still would like to know why was it not working v12.2.0

[TrySound]

Hi. With what promise rejects? 12.2 is very old version and may contain bugs. Better upgrade to the latest lts.

[Jigar3]

The promise rejects with empty object

[TrySound]

I would use get-stream to convert stream to promise. Streams are tricky to handle properly.

[Jigar3]

Cool, thanks. You can close this issue.