auth-routes-context.js

import React, { createContext } from "react";

const AuthContext = createContext({});

const { Consumer, Provider } = AuthContext;

export class AuthContextProvider extends React.Component {
  constructor(props) {
    super(props);

    this.state = {
      user: null,
      isLogged: false,
      setUser: this.setUser
    };
  }

  render() {
    return <Provider value={this.state}>{this.props.children}</Provider>;
  }

  setUser = user => {
    this.setState({
      user,
      isLogged: user !== null
    });
  };
}

export { Consumer as AuthContextConsumer };

export default AuthContext;