how to post form data request using flutter in http package - flutter

Question

I want to send form data in flutter using the HTTP package. Getting the error:FormatException: Unexpected character (at character 1)
I/flutter (30465):
I am sending the form data in the HTTP post request.
Future<void> authethicate(
String schoolName,
String password,
) async {
try {
final url = 'https://yobimx.com/citykey/api/users/login';
final response = await http.post(url, body: {
'email': 'usamashafiq199#outlook.com',
'password': '123',
}, headers: {
"Content-Type": "application/x-www-form-urlencoded",
});
print(
json.decode(response.body),
);
final responseData = json.decode(response.body);
} catch (error) {
print(error);
}
}

Answer 1

I have to use a multipart request for request. Thanks for your help.
Future<void> authethicate(
String schoolName,
String password,
) async {
try {
final url = Uri.parse('https://yobimx.com/citykey/api/users/login');
Map<String, String> requestBody = <String, String>{
'email': 'usamashafiq199#outlook.com',
'password': '123'
};
var request = http.MultipartRequest('POST', url)
..fields.addAll(requestBody);
var response = await request.send();
final respStr = await response.stream.bytesToString();
print(
jsonDecode(respStr),
);
print("This is the Status Code$respStr");
var encoded = json.decode(respStr);
print(encoded['status']);
print('This is the userId${encoded['data']['user_id']}');
} catch (error) {
print(error);
}
}