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Dart

SMSAPI - Send SMS with Multiple Lines of Text

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Send an SMS message containing multiple lines of text.

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Dart
import 'package:chilkat/chilkat.dart';

void main() {
  // This example assumes the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  final http = CkHttp();

  // Implements the following CURL command:

  // curl -H "Authorization: Bearer token_api_oauth" \
  // "https://api.smsapi.com/sms.do?from=sender_name&to=44123456789&message=message_content&format=json"

  // Use the following online tool to generate HTTP code from a CURL command
  // Convert a cURL Command to HTTP Source Code

  // Adds the "Authorization: Bearer token_api_oauth" header.
  http.authToken = 'token_api_oauth';

  final messageContent = 'Hello\r\nThis is a test\r\nwith multiple lines of text.';

  // Given that our message contentn has newlines, we obviously cannot put newlines in a URL without them being URL encoded..
  // Therefore.. URL encode..
  final sbMessage = CkStringBuilder();
  sbMessage.append(messageContent);
  sbMessage.encode('url', 'utf-8');

  http.setUrlVar('msgContent', sbMessage.getAsString());

  final sbResponseBody = CkStringBuilder();
  try {
    http.quickGetSb('https://api.smsapi.com/sms.do?from=sender_name&to=44123456789&message={\$msgContent}&format=json', sbResponseBody);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('Response body:');
  print(sbResponseBody.getAsString());
}