在React表单中为event.preventDefault定义的事件未定义

Question

我正在尝试使用React和Apollo创建一个用户身份验证页面。我得到以下代码的onClick事件的事件未定义：

const Auth = props => {
    const [email, setEmail] = useState('')
    const [password, setPassword] = useState('')
    const onSubmitHandler = async (login, e) => {
        e.preventDefault()
        const authResults = await login()
        props.history.push('/')
    }
    return (
        <Mutation 
            mutation={LOGIN}
            variables={{ email, password }}
        >
        {(login, {data, error, loading}) => {
            if(loading) return <div>...loading</div>
            if(error) return <div>Error</div>
            return (
                <form onSubmit={onSubmitHandler}>
                    <fieldset>
                        <label htmlFor="email">
                            Email
                        </label>
                        <input 
                            type="email" 
                            id="email"
                            value={email}
                            onChange={e => {
                                setEmail(e.target.value)
                            }}
                        />
                    </fieldset>
                    <fieldset>
                        <label htmlFor="password">
                            Password
                        </label>
                        <input 
                            type="password" 
                            id="password"
                            value={password}
                            onChange={e => {
                                setPassword(e.target.value)
                            }}
                        />
                    </fieldset>
                    <button>Login</button>
                </form>
                )
            }}
        </Mutation>
    )

我尝试在调用时包括以下变量：

<form onSubmit={(login, e) => onSubmitHandler(login, e)}>

但是，无济于事。

编辑：最初的问题已解决，但是当我重构代码以利用react-apollo-hooks时，我不断遇到以下错误：

Variable "$email" of required type "String!" was not provided
Variable "$password" of required type "String!" was not provided

我的重构代码如下：

const [email, setEmail] = useState('')
const [password, setPassword] = useState('')
const variables = {
    data: { email, password }
}
const login = useMutation(LOGIN_MUTATION, {
    variables
})

const onSubmitHandler = async (login, e) => {
    e.preventDefault()
    const authResults = await login()
    localStorage.setItem(AUTH_TOKEN, authResults.data.login.token);
    props.history.push('/') 
}

graphql突变

const LOGIN_MUTATION = gql`
  mutation Login($email: String!, $password: String!) {
    login(data: {
        email: $email, password: $password
        }
    ){
      token
      user {
        id
      }
    }
  }
`

我的模式

登录（数据：LoginUserInput！）：AuthPayload！