Dart

Get an Attachment as a Text String

Demonstrates the Chilkat Email.GetAttachmentString method, which returns the Nth attachment's data as text. The first argument is the zero-based attachment index and the second is the charset used to interpret the attachment bytes. This example reads a text attachment as utf-8.

Background: Attachments are stored as bytes, so turning one back into a string requires knowing its charset — the rule for mapping bytes to characters. Supplying the correct charset (often utf-8) yields readable text; the wrong one produces garbled characters. This method is meant for text attachments such as .txt, .csv, or .xml; binary attachments should be handled as raw data instead.

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Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // Demonstrates the GetAttachmentString method, which returns the Nth attachment's data as
  // text.  The first argument is the zero-based attachment index and the second is the charset used to interpret
  // the attachment bytes.

  final email = CkEmail();
  email.subject = 'Attachment as text';

  email.addStringAttachment('notes.txt', 'These are the notes stored in the attachment.');

  // Get the first attachment (index 0) as text, interpreting the bytes as utf-8.
  final content = email.getAttachmentString(0, 'utf-8');
  print('Attachment 0 text: $content');
}