Node.js Core Buffer API로 Base64 인코딩/디코딩

문자열을 base64로 인코딩

const user = 'colbyhemond'
const password = 'test123!@#'
const stringBuffer = Buffer.from(`${user}:${password}`)
const stringBase64 = stringBuffer.toString('base64')

console.log(stringBase64)
// will output: "Y29sYnloZW1vbmQ6dGVzdDEyMyFAIw=="

base64에서 유니코드 문자열로 디코딩

const base64String = 'Y29sYnloZW1vbmQ6dGVzdDEyMyFAIw=='
const base64Buffer = Buffer.from(base64String, 'base64')
const string =  base64Buffer.toString()

console.log(string)
// will output: "colbyhemond:test123!@#"