Sample code for 30+ languages & platforms
Dart Requires Chilkat v11.0.0+

Example: Http.HttpFile method

Shows how to use the HttpFile method to send an HTTP POST request with the contents of a file as the request body. The example sends the following request:
POST /api/v1/sites/123/deploys HTTP/1.1
Host: example.com
Accept: */*
Accept-Encoding: gzip
Content-Type: application/zip
Content-Length: 123456

[binary data bytes of data.zip]

Also see: Chilkat Http Default and Auto-Filled Headers

Chilkat Dart Downloads

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

void main() {
  final http = CkHttp();

  final localFilePath = 'C:/example/zips/data.zip';
  final url = 'https://example.com/api/v1/sites/123/deploys';

  // Send a POST with the contents of the file in the binary HTTP request body.
  final resp = CkHttpResponse();
  try {
    http.httpFile('POST', url, localFilePath, 'application/zip', resp);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('Response Status Code: ${resp.statusCode}');
  print('Response body:');
  print(resp.bodyStr);
}