Flutter api post request error with golang api working with in postman but not flutter

Question

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My problem is in making a post request to my golang api it is working fine in postman but not in flutter it giving some error like this could anyone help me with this

Answer 1

We need more information to detect your problem.

• Can you share the code how to handle your API requests?
• Which HTTP Client have used? ( http, Chopper, dio etc. )

Sometimes Flutter throws Handsake errors like CERTIFICATE_VERIFY_FAILED etc. Maybe you should try to override the default HttpOverrides class.

/// Override the badCertificateCallback to always true.
class NewHttpOverrides extends HttpOverrides {
  @override
  HttpClient createHttpClient(SecurityContext? context) {
    return super.createHttpClient(context)
      ..badCertificateCallback =
          (X509Certificate cert, String host, int port) => true;
  }
}

...

/// Change the global HttpOverrides before runApp.
void main(){
  HttpOverrides.global = NewHttpOverrides();
  runApp(const MyApp());
}