# Google sign in custom domain
{% hint style="warning" %}
This should be accompanied by [database security rules](/firebase-react-notes/auth/database-auth.md).
{% endhint %}
[`firebase.auth.GoogleAuthProvider`](https://firebase.google.com/docs/reference/js/firebase.auth.GoogleAuthProvider)
[Firebase limit access to certain domains](https://blog.jimmycai.com/p/firebase-limit-access-to-certain-domains/)
> Sets the OAuth custom parameters to pass in a Google OAuth request for popup and redirect sign-in operations. Valid parameters include 'hd', 'hl', 'include\_granted\_scopes', 'login\_hint' and 'prompt'. For a detailed list, check the [Google](https://goo.gl/Xo01Jm) documentation. Reserved required OAuth 2.0 parameters such as 'client\_id', 'redirect\_uri', 'scope', 'response\_type' and 'state' are not allowed and will be ignored
From [setCustomParameters](https://firebase.google.com/docs/reference/js/firebase.auth.GoogleAuthProvider#set-custom-parameters) firebase docs
{% hint style="warning" %}
The domain in `hd` needs to be associated with [G Suite domain](https://gsuite.google.com/)
{% endhint %}
```javascript
const provider = new firebase.auth.GoogleAuthProvider();
provider.setCustomParameters({
hd: "example.com"
});
```
Wrapped in a function inside a react hook component
```javascript
const signIn = () => {
const provider = new firebase.auth.GoogleAuthProvider();
provider.setCustomParameters({
hd: "wsj.com"
});
firebase
.auth()
.signInWithPopup(provider)
.then(function(result) {
// This gives you a Google Access Token. You can use it to access the Google API.
var token = result.credential.accessToken;
// The signed-in user info.
var user = result.user;
console.log("signed-in", user);
// ...
})
.catch(function(error) {
// Handle Errors here.
var errorCode = error.code;
var errorMessage = error.message;
// The email of the user's account used.
var email = error.email;
// The firebase.auth.AuthCredential type that was used.
var credential = error.credential;
console.log("error", error);
// ...
});
};
```
in context in a react hook component
```javascript
import React, { useEffect } from "react";
import StyledFirebaseAuth from "react-firebaseui/StyledFirebaseAuth";
import Navbar from "react-bootstrap/Navbar";
import Nav from "react-bootstrap/Nav";
import NavDropdown from "react-bootstrap/NavDropdown";
import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
import {
faMicrophone,
faHeadphones,
faFileAudio,
faSignOutAlt,
faSignInAlt,
faUser
} from "@fortawesome/free-solid-svg-icons";
import Container from "react-bootstrap/Container";
import CustomNotice from "../CustomNotice";
function CustomNavbar(props) {
const { firebase } = props;
// eslint-disable-next-line react-hooks/exhaustive-deps
useEffect(() => {
const unsubscribe = firebase.auth().onAuthStateChanged(user => {
if (user) {
props.handleUserChange(true);
} else {
props.handleUserChange(false);
}
});
// clean up
// https://reactjs.org/docs/hooks-effect.html#example-using-hooks-1
return function cleanup() {
// TODO: add some clean up logic here for logout?
unsubscribe();
};
}, []);
const signIn = () => {
const provider = new firebase.auth.GoogleAuthProvider();
provider.setCustomParameters({
hd: "wsj.com"
});
firebase
.auth()
.signInWithPopup(provider)
.then(function(result) {
// This gives you a Google Access Token. You can use it to access the Google API.
var token = result.credential.accessToken;
// The signed-in user info.
var user = result.user;
console.log("signed-in", user);
// ...
})
.catch(function(error) {
// Handle Errors here.
var errorCode = error.code;
var errorMessage = error.message;
// The email of the user's account used.
var email = error.email;
// The firebase.auth.AuthCredential type that was used.
var credential = error.credential;
console.log("error", error);
// ...
});
};
return (
<>
{" "}
Transcriber App
{firebase.auth().currentUser ? (
) : null}
<>
{navigator.onLine ? null : (
)}
);
}
export default CustomNavbar;
```
---
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