addition useGoogleIdToken

packages/@react-oauth/google/src/hooks/useGoogleIdToken.ts

@@ -0,0 +1,28 @@
+import { useGoogleOAuth } from './GoogleOAuthProvider';
+import { useCallback } from 'react';
+
+export const useGoogleIdToken = ({onSuccess}:any) => {
+  const { clientId, scriptLoadedSuccessfully } = useGoogleOAuth();
+
+  const login = useCallback(() => {
+    if (!scriptLoadedSuccessfully) {
+      console.error("Google script not loaded yet");
+      return;
+    }
+
+    /* global google */
+    (window?.google as any)?.accounts?.id?.initialize({
+      client_id: clientId,
+      callback: (response:any) => {
+        if (response.credential) {
+          onSuccess(response.credential);
+        }
+      },
+    });
+
+    // This opens the native Google selection prompt
+    (window?.google as any)?.accounts?.id?.prompt();
+  }, [clientId, scriptLoadedSuccessfully, onSuccess]);
+
+  return login;
+};