nodejs file to base64 code example

Example 1: nodejs string to base64

> console.log(Buffer.from("Hello World").toString('base64'));
SGVsbG8gV29ybGQ=
> console.log(Buffer.from("SGVsbG8gV29ybGQ=", 'base64').toString('ascii'))
Hello World

Example 2: nodejs fs writefile base64url

const fileContents = new Buffer(attachmentResponse.data.data, 'base64')
fs.writeFile(part.filename, fileContents, (err) => {
  if (err) return console.error(err)
  console.log('file saved to ', part.filename)
})

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Javascript Example

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