Created
August 1, 2018 01:00
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Context with HoC for consumer.
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import React, { createContext, Component } from "react"; | |
import { Auth } from "aws-amplify"; | |
const AuthContext = createContext({ | |
isAuthenticated: false, | |
isAuthenticating: true | |
}); | |
class AuthProvider extends Component { | |
state = { | |
isAuthenticated: false, | |
isAuthenticating: true, | |
isLogingIn: false | |
}; | |
userHasAuthenticated = authenticated => { | |
this.setState({ isAuthenticated: authenticated }); | |
}; | |
async componentDidMount() { | |
try { | |
console.debug(await Auth.currentCredentials()); | |
if (await Auth.currentCredentials()) { | |
this.userHasAuthenticated(true); | |
} | |
if (await Auth.currentSession()) { | |
this.userHasAuthenticated(true); | |
} | |
} catch (e) { | |
if (e !== "No current user") { | |
alert(e); | |
} | |
} | |
this.setState({ isAuthenticating: false }); | |
} | |
handleSocialCallback = userToken => { | |
this.userHasAuthenticated(true); | |
}; | |
handleLogout = async event => { | |
await Auth.signOut(); | |
this.userHasAuthenticated(false); | |
this.props.history.push("/login"); | |
}; | |
handleLogin = async (event, email, password) => { | |
event.preventDefault(); | |
this.setState({ isLogingIn: true }); | |
try { | |
await Auth.signIn(email, password); | |
this.userHasAuthenticated(true); | |
} catch (e) { | |
alert(e.message); | |
this.setState({ isLogingIn: false }); | |
} | |
}; | |
render() { | |
return ( | |
<AuthContext.Provider value={{ ...this }}> | |
{this.props.children} | |
</AuthContext.Provider> | |
); | |
} | |
} | |
function withContext(WrappedComponent, context) { | |
return class extends React.Component { | |
render() { | |
console.log(this); | |
return ( | |
<AuthContext.Consumer> | |
{value => { | |
console.log(this, arguments, value); | |
return <WrappedComponent contextProps={{ ...value }} />; | |
}} | |
</AuthContext.Consumer> | |
); | |
} | |
}; | |
} | |
export { AuthContext, withContext }; | |
export default AuthProvider; |
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import React, { Component } from "react"; | |
import { Auth } from "aws-amplify"; | |
import Grid from "@material-ui/core/Grid"; | |
import FacebookButton from "components/FacebookButton"; | |
import LoaderButton from "components/LoaderButton"; | |
import "./Login.css"; | |
import TextField from "@material-ui/core/TextField"; | |
import { | |
AuthContext, | |
withContext | |
} from "Packages/Context/AuthenticationContext"; | |
class Login extends Component { | |
constructor(props) { | |
super(props); | |
this.state = { | |
isLoading: false, | |
email: "", | |
password: "" | |
}; | |
} | |
validateForm() { | |
return this.state.email.length > 0 && this.state.password.length > 0; | |
} | |
handleChange = event => { | |
this.setState({ | |
[event.target.id]: event.target.value | |
}); | |
}; | |
render() { | |
const { contextProps } = this.props; | |
console.log(this); | |
return ( | |
<Grid className="Login" container> | |
<form | |
onSubmit={e => | |
contextProps.handleLogin(e, this.state.email, this.state.password) | |
} | |
> | |
<TextField | |
id="email" | |
autoFocus | |
label="Email" | |
shrink="false" | |
type="email" | |
value={this.state.email} | |
onChange={this.handleChange} | |
fullWidth | |
/> | |
<TextField | |
id="password" | |
label="Password" | |
margin="normal" | |
value={this.state.password} | |
shrink="false" | |
onChange={this.handleChange} | |
type="password" | |
fullWidth | |
/> | |
<LoaderButton | |
disabled={!this.validateForm()} | |
type="submit" | |
isLoading={contextProps.state.isLoading} | |
text="Login" | |
loadingText="Logging in…" | |
/> | |
</form> | |
<Grid className="Login" container> | |
<FacebookButton | |
buttonClass="fb-button-signup" | |
callback={contextProps.handleSocialCallback} | |
/> | |
</Grid> | |
</Grid> | |
); | |
} | |
} | |
Login = withContext(Login, AuthContext); | |
export default Login; |
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