Get a REST Response Header by Name

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Demonstrates Rest.ResponseHdrByName, which returns the value of a response header field by name. Header field names are case-insensitive.

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;
  }

  try {
    rest.sendReqNoBody('GET', '/api/items/123');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  final statusCode = rest.readResponseHeader();
  if (statusCode < 0) {
    print(rest.lastErrorText);
    return;
  }

  // Return the value of a response header field by name.  Header field names are case-insensitive.
  final String contentType;
  try {
    contentType = rest.responseHdrByName('Content-Type');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('Content-Type: $contentType');
}