Im using React, Apollo Client 2 and Graphcool. Ive implemented a login form. On the login page either a login form or a logout button are shown depending on weather the client is logged in.
My code works but does not update reactively. After a user logs in or out nothing changes until they refresh the page. How can I make my code reactive?
import React from 'react';
import { graphql, compose } from 'react-apollo';
import gql from 'graphql-tag';
class Login extends React.Component {
constructor(props) {
super(props);
this._confirm = this._confirm.bind(this);
}
_confirm = async e => {
e.preventDefault();
const result = await this.props.LoginMutation({
variables: {
email: '5@gmail.com',
password: 'password',
},
});
const token = result.data.authenticateUser.token;
this._saveUserData(token);
};
_saveUserData = token => {
localStorage.setItem('auth-token', token);
};
render() {
return (
<div>
{this.props.LoginQuery.user ? (
<button onClick={() => localStorage.removeItem('auth-token')}>
Logout
</button>
) : (
<form onSubmit={this._confirm}>
<input type="email" id="email" />
<input type="password" id="password" />
<button type="submit">Login</button>
</form>
)}
</div>
);
}
}
const LoginMutation = gql`
mutation authenticateUser($email: String!, $password: String!) {
authenticateUser(email: $email, password: $password) {
token
}
}
`;
const LoginQuery = gql`
query AppQuery {
user {
id
}
}
`;
const LoginContainer = compose(
graphql(LoginMutation, { name: 'LoginMutation' }),
graphql(LoginQuery, { name: 'LoginQuery' }),
)(Login);
export default LoginContainer;
Anything that concerns UI, doesn't necessarily need to be protected. Therefore you can easily just use state or a data store (such as redux, mobx etc.) to triggers updates to the UI.
If you want reactive updates to your UI based off of your mutations with GraphQL. I would honestly recommend implementing Subscriptions which will give you the sort of reactive data flow that you're looking for.