How to use Instead of Base64, use Base64InputStream which provides decoding string (unlimited size) in kotlin

[TaxiCrazy]

`val obj = JSONObject(jwt) val data = obj.getString("data")

`val obj = JSONObject(jwt) val data = obj.getString("data")       
 val encryptedStr = data.split(".")
 val encryptedStrSplit = encryptedStr[1]

 // decrypt using Base64.decode
 val decodeResponse = android.util.Base64.decode(encryptedStrSplit, android.util.Base64.URL_SAFE).toString(Charsets.UTF_8)
 Timber.tag("OK").d("decodeResponse: $decodeResponse")

 return decodeResponse`

I tried using this method but didn't work

`fun decodeBase64String(encodedString: String): String { val encodedStream: InputStream = ByteArrayInputStream(encodedString.toByteArray(Charsets.UTF_8)) val base64Stream = Base64InputStream(encodedStream)

val decodedBytes = base64Stream.readBytes()
return decodedBytes.toString(Charsets.UTF_8)

}'

 

[Diego Zutta]

import java.io.ByteArrayInputStream
import java.io.Base64
import java.io.Base64InputStream

fun main() {
    val encodedString = "SGVsbG8gV29ybGQh"
    
    // Convert the encoded string to a byte array
    val decodedBytes = Base64.getDecoder().decode(encodedString)
    
    // Create a ByteArrayInputStream from the decoded byte array
    val byteArrayInputStream = ByteArrayInputStream(decodedBytes)
    
    // Create a Base64InputStream from the ByteArrayInputStream
    val base64InputStream = Base64InputStream(byteArrayInputStream, Base64.DEFAULT)
    
    // Read the decoded data from the stream
    val decodedString = base64InputStream.bufferedReader().readText()
    
    // Print the decoded string
    println(decodedString) // Output: "Hello World!"
}