Problem using http GET request in flutter - http

Question

So I got a template of a Flutter app that retrieves all its data from a website using HTTP get requests.
I have the following method that gets the list of resturaunts:
Future<Stream<Restaurant>> getNearRestaurants(LocationData myLocation, LocationData areaLocation) async {
String _nearParams = '';
String _orderLimitParam = '';
if (myLocation != null && areaLocation != null) {
_orderLimitParam = 'orderBy=area&limit=5';
_nearParams = '&myLon=${myLocation.longitude}&myLat=${myLocation.latitude}&areaLon=${areaLocation.longitude}&areaLat=${areaLocation.latitude}';
}
final String url = '${GlobalConfiguration().getString('api_base_url')}restaurants?$_nearParams&$_orderLimitParam';
final client = new http.Client();
final streamedRest = await client.send(http.Request('get', Uri.parse(url)));
return streamedRest.stream.transform(utf8.decoder).transform(json.decoder).map((data) => Helper.getData(data)).expand((data) => (data as List)).map((data) {
return Restaurant.fromJSON(data);
});
}
However when I swap the template's url variable for my own website, the app gets stuck since it cannot retrieve the same information from my website.
What could I be missing? Is the problem in the flutter code or the website?
Update 1:
I surrounded it with a try/catch block and it gave me a "bad certificate exception.". This might be because my website does not have a SSL certificate, so I added an exception to the HttpClient for my self-certified website:
bool _certificateCheck(X509Certificate cert, String host, int port) =>
host == '<domain>';
HttpClient client2 = new HttpClient()..badCertificateCallback = (_certificateCheck);
HttpClientRequest request = await client2.getUrl(Uri.parse(url));
var response = await request.close(); // sends the request
// transforms and prints the response
response.transform(Utf8Decoder()).listen(print);
This code showed a Error 404: Not found on the page that I need to get my JSON data from.
I also installed postman and checked my website with the GET statement for the same list of restaurants I try to retrieve in the flutter code posted above and see this:
Postman GET screenshot
Update 2:
So I configured SSL on my website and the problem still persists. I tried testing the GET request via postman and it returns a error 404 page as well. I have tried going through my server files and laravel logs and nothing did the trick.
Its as if my website cannot route to the specific pages in my API folder. BUt they are all defined in api.php.