Dart

Base64 Encode a File

_LANGUAGE_ to Base64 encode the contents of a file. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // Get the contents of a file into a base64 encoded string:
  final fac = CkFileAccess();
  final String strBase64;
  try {
    strBase64 = fac.readBinaryToEncoded('c:/data/something.pdf', 'base64');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Now write the string to a file:
  try {
    fac.writeEntireTextFile('c:/data/something_pdf_base64.txt', strBase64, 'us-ascii', false);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('Success!');
}