Question

How to encode and decode a string to base64 in Scala

Answer 1

import java.util.Base64
import java.nio.charset.StandardCharsets

object Base64EncodeDecode_Scala {

  def base64Encode(str: String): String = {
    val bytes = str.getBytes(StandardCharsets.UTF_8)
    
    Base64.getEncoder.encodeToString(bytes)
  }

  def base64Decode(encodedStr: String): String = {
    val decodedBytes = Base64.getDecoder.decode(encodedStr)
    
    new String(decodedBytes, StandardCharsets.US_ASCII)
  }

  def main(args: Array[String]): Unit = {
    val encoded = base64Encode("scala programming")
    println(encoded)

    val decoded = base64Decode(encoded)
    println(decoded)
  }
}
 
 
  
/*
run:
 
c2NhbGEgcHJvZ3JhbW1pbmc=
scala programming
 
*/

 

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