Post form-data with flutter/dart

gistfile1.dart

  import 'package:http/http.dart'; // http library, http:0.13.0
  import 'dart:developer'; // logging locally

  String? get baseUrl => "http://localhost:8081"
      
  Future<Response> postForm(String path, Map<String, String> body, {Map<String, String>? customHeaders}) async {
    final headers = commonHeaders()
      ..addAll(customHeaders ?? {})
      ..addAll({"Content-Type": "application/x-www-form-urlencoded"});
    log("POST $baseUrl$path with body $body and headers $headers", name: "http_service");
    final response = httpClient.post(
      Uri.parse("$baseUrl$path"),
      body: body.entries.map((e) => "${e.key}=${e.value}").join(),
      headers: headers,
    );
    response.then((value) => log("POST RESPONSE: ${value.body}", name: "http_service local"));
    return response;
  }

I think the mapping is incorrect and should be: entries.map((e) => '${e.key}=${Uri.encodeComponent(e.value)}').join('&')