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This repository was archived by the owner on May 20, 2026. It is now read-only.
This repository was archived by the owner on May 20, 2026. It is now read-only.

Error: Encoding not being detected #13

Description

@rogeriopvl

I'm using csv-stream with express to parse a request stream (file).

This is the code I'm using:

const csv = require('csv-stream')

module.exports = (req, res) => {
  const csvStream = csv.createStream({ enclosedChar: '"' })

  req.pipe(csvStream)
    .on('error', (err) => { console.error(err) })
    .on('data', (data) => { console.log(data) })

  req.on('end', () => { res.send('END') })
}

When I run this, I get this error:

buffer.js:557
  throw new TypeError('Unknown encoding: ' + encoding);
  ^

TypeError: Unknown encoding:
    at stringSlice (buffer.js:557:9)
    at Buffer.toString (buffer.js:593:10)
    at CSVStream.write (/(...)/node_modules/csv-stream/index.js:59:34)
    at IncomingMessage.ondata (_stream_readable.js:626:20)
    at emitOne (events.js:115:13)
    at IncomingMessage.emit (events.js:210:7)
    at IncomingMessage.Readable.read (_stream_readable.js:462:10)
    at flow (_stream_readable.js:833:34)
    at resume_ (_stream_readable.js:815:3)
    at _combinedTickCallback (internal/process/next_tick.js:102:11)

I can fix this by adding the following to my code:

csvStream._encoding = 'utf8'

But this is an ugly hack that I want to avoid at all cost.

Is there any way to fix this from my side? Am I missing something? Or should csv-stream set a value for this._encoding coming from options or something similar?

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