How can I handle async requests in Formik?

How can I handle async requests in Formik?

You can handle async requests in Formik by using the onSubmit function to make API calls. Would you like an example?

Yes, please provide an example of how to do that.

Sure! In your Formik form, you can define the onSubmit like this:

const handleSubmit = async (values) => {
  const response = await fetch('/api/submit', {
    method: 'POST',
    body: JSON.stringify(values),
    headers: {'Content-Type': 'application/json'},
  });
  const data = await response.json();
  console.log(data);
};

This will send the form values to your API when the form is submitted.

What if I want to show a loading state while the request is in progress?

You can manage a loading state by using a local state variable. Set it to true when the request starts and false when it ends. Here's an example:

const [loading, setLoading] = useState(false);

const handleSubmit = async (values) => {
  setLoading(true);
  try {
    const response = await fetch('/api/submit', {...});
    // handle response
  } finally {
    setLoading(false);
  }
};

This way, you can show a loading spinner while the request is being processed.