Add a Request Header to a REST Request

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Demonstrates Rest.AddHeader, which adds an HTTP request header field. The 1st argument is the field name and the 2nd is the value. Adding a header whose name already exists replaces the previous value.

import 'package:chilkat/chilkat.dart';

void main() {
  final rest = CkRest();

  // Connect to the REST server.  The 3rd argument enables TLS (use true for HTTPS on port 443),
  // and the 4th enables automatic reconnection if the connection is dropped between requests.
  final bTls = true;
  final bAutoReconnect = true;
  try {
    rest.connect('example.com', 443, bTls, bAutoReconnect);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Add request header fields.  The 1st argument is the field name and the 2nd is the value.
  // Adding a header with a name that already exists replaces the previous value.
  rest.addHeader('Accept', 'application/json');
  rest.addHeader('X-Custom-Header', 'example-value');

  final String responseText;
  try {
    responseText = rest.fullRequestNoBody('GET', '/api/data');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print(responseText);
}