The error message "Property 'pipe' is not found on 'ReadableStream<Uint8Array>'" indicates that the pipe method cannot be used on the given type

Within a function resembling Express.js in Next.js, I am working on fetching a CSV file with a URL that ends in .csv. Using the csv-parser library to stream the data without persisting the file and transform it into an array. Here is an excerpt of the code:

export default async (req: NextApiRequest, res: NextApiResponse) => {

  ...

  const response: Response = await fetch(url)
  try {
    response.body.pipe(parser())
      .on('data', callback...)
  } catch {
    error handling...
  }
}

Although my code functions as expected, I encounter an error related to the response.body.pipe when building the app:

Type error: Property 'pipe' does not exist on type 'ReadableStream<Uint8Array>'.

Providing this context, is there a solution or suggestion to resolve this issue?

Answer №1

I decoded the NextApiRequest body in the following manner:

const data = await req.body?.getReader().read();
console.log(data?.value?.toString());

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