SocketException: OS Error: Connection refused, errno = 111, address = localhost, port = 37312 while http post

Question

I'm trying to post data to node API from flutter. my code is as follows.

final String uri = "http://localhost:3000";
Map<String, String> userBody = {
"firstName":"Vishal",
"lastName":"Soni",
"email":"[email protected]",
"mobile":"1234567890",
"password":"123",
};

Future<dynamic> postData() async {
try {
  http.Response res = await http.Client().post("$uri/register", body: jsonEncode(userBody), headers:    {
    'Content-Type': 'application/json',
  });
  print(res);
} catch (e) {
  print(e);
 }
}

Getting following error

There's not nearly enough information here to solve your problem -- I'd start with verifying your API is working properly. — S.V.
– S.V., Commented Oct 20, 2020 at 11:39

Akif · Accepted Answer · 2020-10-20 11:39:02Z

3

You need to change the localhost. It should be your IP address.

     final String uri = "http://10.0.2.2:3000";

Look here for the same issue on Github.

answered Oct 20, 2020 at 11:39

Akif

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2 Comments

S.V. Over a year ago

This is only applicable if you're running your app on an emulator, where 10.0.2.2 is looped back to the host machine's address

Drashtant Solanki Over a year ago

Yeah I'm running on an emulator

Dung Ngo · Accepted Answer · 2020-10-21 09:44:21Z

2

run the below command in the terminal

adb reverse tcp:3000 tcp:3000

answered Oct 21, 2020 at 9:44

Dung Ngo

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