First commit

lib/utils.dart

@@ -0,0 +1,31 @@
+
+import 'dart:io' show Platform;
+
+import 'package:package_info_plus/package_info_plus.dart';
+
+String getRedirectURI() {
+  try {
+    if (Platform.isAndroid) {
+      return "";
+    } else {
+      return "/localhost:3000/auth.html";
+    }
+  } catch (e) {
+    // Must be web
+    return "/localhost:3000/auth.html";
+  }
+}
+
+Future<String> getCallbackUrlScheme() async {
+  try {
+    if (Platform.isAndroid) {
+      PackageInfo packageInfo = await PackageInfo.fromPlatform();
+      return packageInfo.packageName;
+    } else {
+      return "http";
+    }
+  } catch (e) {
+    // Must be web
+    return "http";
+  }
+}