Dart

Add Base64-Encoded Data to a ZIP Using AddEncoded

See more Zip Examples

This example demonstrates how to use the AddEncoded method to add encoded binary data as a file entry within a ZIP archive.

The example adds Base64-encoded data as a file named hello.txt within the ZIP archive. The Base64 text is automatically decoded to its original binary bytes before being stored in the ZIP.

This method is useful when binary data already exists in encoded textual form, such as Base64 or hex.

Dart

import 'package:chilkat/chilkat.dart';

void main() {
  final zip = CkZip();

  try {
    zip.newZip('encodedData.zip');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Base64 for the text: "Hello World!"
  final base64Data = 'SGVsbG8gV29ybGQh';

  // Add the decoded bytes as "hello.txt" within the ZIP archive.
  try {
    zip.addEncoded('hello.txt', 'base64', base64Data);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Write the ZIP archive to disk and close it.
  try {
    zip.writeZipAndClose();
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('ZIP archive created successfully.');
}