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FacebookButton.js
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FacebookButton.js
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import React, { Component } from "react";
import { Auth } from "aws-amplify";
import LoaderButton from "./LoaderButton";
function waitForInit() {
return new Promise((res, rej) => {
const hasFbLoaded = () => {
if (window.FB) {
res();
} else {
setTimeout(hasFbLoaded, 300);
}
};
hasFbLoaded();
});
}
export default class FacebookButton extends Component {
constructor(props) {
super(props);
this.state = {
isLoading: true
};
}
async componentDidMount() {
await waitForInit();
this.setState({ isLoading: false });
}
statusChangeCallback = response => {
if (response.status === "connected") {
this.handleResponse(response.authResponse);
} else {
this.handleError(response);
}
};
checkLoginState = () => {
window.FB.getLoginStatus(this.statusChangeCallback);
};
handleClick = () => {
window.FB.login(this.checkLoginState, {scope: "public_profile,email"});
};
handleError(error) {
alert(error);
}
async handleResponse(data) {
const { email, accessToken: token, expiresIn } = data;
const expires_at = expiresIn * 1000 + new Date().getTime();
const user = { email };
this.setState({ isLoading: true });
try {
const response = await Auth.federatedSignIn(
"facebook",
{ token, expires_at },
user
);
this.setState({ isLoading: false });
this.props.onLogin(response);
} catch (e) {
this.setState({ isLoading: false });
this.handleError(e);
}
}
render() {
return (
<LoaderButton
block
bsSize="large"
bsStyle="primary"
className="FacebookButton"
text="Login with Facebook"
onClick={this.handleClick}
disabled={this.state.isLoading}
/>
);
}
}