post method

Future<Map<String, dynamic>?> post(String url, Map<String, dynamic> body, { Map<String, String>? header, })

Implementation

Future<Map<String, dynamic>?> post(
  String url,
  Map<String, dynamic> body, {
  Map<String, String>? header,
}) async {
  Map<String, dynamic>? responseBody;
  http.Response? res;

  Map<String, String> headers = {
    "Content-Type": "application/json",
  };

  if (header != null) {
    headers.addAll(header);
  }

  try {
    res = await http.post(
      Uri.parse(url),
      headers: headers,
      body: jsonEncode(body),
    );
  } catch (e) {
    errorMessage = "$e";
  }

  if (res == null) {
    return null;
  }

  statusCode = res.statusCode;

  try {
    String bodyString = utf8.decode(res.bodyBytes);
    responseBody = jsonDecode(bodyString.trim());
  } catch (e) {
    errorMessage = "$e";
    return null;
  }

  return responseBody;
}