a simple function for uploading image to a server and returning a link to that image in dart/flutter

imageUploder.dart

import 'dart:io';

import 'package:flutter/foundation.dart';
import 'package:http/http.dart' as http;
import 'package:http_parser/http_parser.dart';
import 'package:path/path.dart';

Future<http.Response> imageUploadRequest({@required File imageFile}) async {
  Map<String, String> headers = {"Accept": "application/json"};

  final multipartRequest =
      new http.MultipartRequest('POST', Uri.parse('<END_POINT_TO_UPLOAD>'));
  multipartRequest.headers.addAll(headers);
  String fileName = basename(imageFile.path);

  multipartRequest.files.add(
    await http.MultipartFile.fromPath('image', imageFile.path,
        filename: fileName, contentType: MediaType("image", "png")),
  );

  http.Response response =
      await http.Response.fromStream(await multipartRequest.send())
          .timeout(Duration(seconds: 120)); //2 MINUTES TIMEOUT

  return response;
}

Updated on 6th July 2020 based on new concepts and approach i have learnt.