extractTokenFromHeader function

String? extractTokenFromHeader(
  1. HttpHeaders headers
)

Extracts the token from the header

The Header has to be in the Authorization

And the value has to be in the form Bearer Token

If you have yours in another form, You'll have to do it manually

Implementation

String? extractTokenFromHeader(HttpHeaders headers) {
  String? value = headers.value('Authorization');
  if (value != null) {
    var list = value.split(' ');
    String token = list[1];
    return token;
  } else {
    return null;
  }
}