sweetalert ajax functionality

i am trying to use sweetAlert2 for my ajax, creating a form inside and then do its process and get the results back, but i am stuck at one point which is when i send the results how do i process the ajax inside it,

Here is my code as of now

Swal.fire({
            title: 'Request PlayForm',
            html: `<textarea name="da" id="da"></textarea>`,
            confirmButtonText: 'Submit',
            focusConfirm: false,
            preConfirm: () => {
                const textData = Swal.getPopup().querySelector('#da').value
                if (da== '') {
                Swal.showValidationMessage(`Please enter details.`)
                }
                return { da: da}
            }
            }).then((result) => {
            Swal.fire(`
                Email Sent Successfully -- this message should come when i get a success from my ajax else it will display error which i can get from ajax 
            `.trim())
        })