Send a REST Request using StringBuilder Bodies

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Demonstrates Rest.FullRequestSb, which sends a complete request whose text body is read from a StringBuilder and stores the text response body in a second StringBuilder.

import 'package:chilkat/chilkat.dart';

void main() {
  final rest = CkRest();
  final bTls = true;
  final bAutoReconnect = true;
  try {
    rest.connect('example.com', 443, bTls, bAutoReconnect);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // FullRequestSb sends a request whose text body is read from a StringBuilder and stores the text
  // response body in a second StringBuilder.  This avoids extra string conversions for large bodies.
  final sbRequest = CkStringBuilder();
  sbRequest.append('{ "query": "chilkat" }');

  rest.addHeader('Content-Type', 'application/json');

  final sbResponse = CkStringBuilder();
  try {
    rest.fullRequestSb('POST', '/api/search', sbRequest, sbResponse);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  final String responseText;
  try {
    responseText = sbResponse.getAsString();
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print(responseText);
}