FlutterOSC/lib/util/NetUtils.dart

import 'dart:async';
import 'package:http/http.dart' as http;

class NetUtils {
  static Future<String> get(String url, {Map<String, String> params}) async {
    if (params != null && params.isNotEmpty) {
      StringBuffer sb = new StringBuffer("?");
      params.forEach((key, value) {
        sb.write("$key" + "=" + "$value" + "&");
      });
      String paramStr = sb.toString();
      paramStr = paramStr.substring(0, paramStr.length - 1);
      url += paramStr;
    }
    http.Response res = await http.get(url);
    return res.body;
  }
  
  static Future<String> post(String url, {Map<String, String> params}) async {
    http.Response res = await http.post(url, body: params);
    return res.body;
  }
}