how to get customer email in checkout extensions

[kojiro2hb]

how to get customer email in checkout extensions ?

const { buyerIdentity: { customer }, selectedPaymentOptions } = useApi();
console.log("email");
console.log(customer.email);

i wrote this but console shows undefined

[kojiro2hb]

@Liam 

i would be appreciate if you could help me on this 🙏

[Richard687 · Accepted solution]

As far as I can tell, buyerIdentity.customer is only defined when the user is logged in - if that isn't the desired behaviour, you could use buyerIdentity.email instead.

Either way, you need to subscribe to the value. This is how I did it in React:

const { buyerIdentity } = useApi();
const [email, setEmail] = useState(buyerIdentity.customer.current?.email);
useEffect(() => {
    buyerIdentity.customer.subscribe(value => setEmail(value.email));
}, [buyerIdentity]);

or

const { buyerIdentity } = useApi();
const [email, setEmail] = useState(buyerIdentity.email.current);
useEffect(() => {
    buyerIdentity.email.subscribe(value => setEmail(value.email));
}, [buyerIdentity]);

Hope that helps!