如何在反应阿波罗钩和福米克中使用突变

Question

在我的许多尝试中，我尝试将 react-apollo-hooks 和 formik 一起使用，但这似乎是不可能的。表单中的数据仅在 <Formik> 标记中可用，否则无法在其外部访问。我也不能调用我的useMutation钩子并同时向其传递参数：

const SignUp = () => {
  const classes = useStyles();
  // The react-apollo-hook for useMutation
  // Its not hard to call this, but it seems impossible to call it,
  // with any sort of arguments.
  // It seems pointless not being able to pass in data from the form
  const [createUser, { loading }] = useMutation(CREATE_USER_MUTATION, {
    variables: {
      firstName: '???',
      lastName: '???',
      email: '???',
      password: '???',
    },
  });
  // Formik stuff goes down here. It's impossible to call `useMutation` 
  // with the argument of `values`
  return (
    <Formik
      initialValues={{
        firstName: '',
        lastName: '',
        email: '',
        password: '',
        showPassword: false,
      }}
      // This is the part that calls the hook.
      // I see no way of passing arguments to `useMutation` from here
      onSubmit={(values, { setSubmitting }) => createUser}
      render={({submitForm, isSubmitting, values, setFieldValue}) => (
        <div>
          <h1>Sign up for a new account</h1>
          <Form className={classes.container}>
            <Field
              className={classes.textField}
              name="firstName"
              type="text"
              label="First name"
              margin="dense"
              variant="outlined"
              component={TextField}
            />
          </Form>
          <Button
            variant="contained"
            color="primary"
            margin="dense"
            className={classes.button}
            disabled={isSubmitting}
            onClick={submitForm}
          >
            Sign Up
          </Button>
        </div>
      )}
    />
  );
};

那么我如何能够以某种方式将参数从onSubmit传递到顶部的useMutation部分呢？似乎不可能将论据传递给钩子。我认为我不能在查询名称CREATE_USER_MUTATION和具有设置的对象之外添加任何其他数据。

Answer 1

可以将突变变量提供给单个突变调用，而不是useMutation调用。因此，您可以在组件的顶部执行此操作：

const [createUser, { loading }] = useMutation(CREATE_USER_MUTATION)

然后在实际调用createUser后提供变量：

onSubmit={(values, { setSubmitting }) => createUser({ variables: values })}