Login.js - Login CometChat - Discord Clone

Login.js

...
const loginCometChat = (user) => {
  const authKey = `${process.env.REACT_APP_COMETCHAT_AUTH_KEY}`;

  cometChat.login(user.id, authKey).then(
    User => {
      localStorage.setItem('auth', JSON.stringify(user));

      setUser(user);
      setIsLoading(false);

      history.push('/');
    },
    error => {
    }
  );
};
...