Send a REST Request with a Streamed Body

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Demonstrates Rest.FullRequestStream, which sends a complete request whose body is read from a Stream, then returns the response body as text.

The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

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;
  }

  // The file paths are relative to the application's current working directory.  Absolute paths
  // may also be used.  Supply the paths appropriate to your own environment.

  // The request body is read from a Stream.  Here the stream's source is a local file, which is
  // appropriate for large uploads because the data need not be held entirely in memory.
  final bodyStream = CkStream();
  bodyStream.sourceFile = 'qa_data/upload.json';

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

  // The 3rd argument is the Stream that supplies the request body.
  final String responseText;
  try {
    responseText = rest.fullRequestStream('POST', '/api/upload', bodyStream);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print(responseText);
}