here's the jist of where I'm stuck (or just read the title for my question).
I have a firebase.js file where I have functions to authenticate. signinGithub, signinGoogle, signinEmail and so forth. The Firebase Auth business logic is in these functions.
I am showing errors with console.log or alert from these functions. The functions are imported into a Component and I don't know how to capture the functions result into the component by somehow setting state from this out-of-component function file.
Here's a basic example:
firebase.js
...
const signInWithGitHub = async () => {
try {
const res = await signInWithPopup(auth, githubProvider)
const user = res.user
} catch (err) {
alert(err) // ** I want to pass "err" from here to Login
// ** component by updating Logins state for a message
}
}
export {signinWithGitHub}
...
Login.jsx
import React, { useEffect, useState } from "react"
import { useAuthState } from "react-firebase-hooks/auth"
import {
auth,
signInWithGitHub
} from "../lib/firebase"
function Login() {
const [user, loading, error] = useAuthState(auth)
render(
{* Below is the method call from the imported custom firebase function *}
<button onClick={signInWithGitHub}>
Login with GitHub
</button>
)
}
...
I was thinking something like this but I can't fully resolve it in my mind:
const [message, setMessage] = useState('')error message --I'm stuck figuring out how to apply to function message to the state, any ideas?
You can create a custom function inside your Login. jsx file to call the original signInWithGitHub method with a try catch block. And more importantly, you should not use render inside a functional component. Use return to render the JSX in DOM.
firebase.js
export const signInWithGitHub = async () => {
try {
const res = await signInWithPopup(auth, githubProvider);
const user = res.user;
} catch (err) {
throw new Error(err?.message || "Unable to sign in with GitHub");
}
};
Login.jsx
import React, { useEffect, useState } from "react";
import { useAuthState } from "react-firebase-hooks/auth";
import { auth, signInWithGitHub } from "../lib/firebase";
function Login() {
const [user, loading, error] = useAuthState(auth);
const [errorMessage, setErrorMessage] = useState("");
const onLogin = async () => {
try {
await signInWithGitHub();
} catch (err) {
setErrorMessage(err);
}
};
return (
<>
<button onClick={onLogin}>Login with GitHub</button>
{!!errorMessage && <h5>{errorMessage}</h5>}
</>
);
}