The post sign up logic can come: - https://gist.github.com/rishabhpoddar/07de224632f32ea78b58b1203426dd57#file-customsigninuppost-ts-L40; and - https://gist.github.com/rishabhpoddar/07de224632f32ea78b58b1203426dd57#file-customsigninuppost-ts-L99 (if

response.createdNewUser === true

) To insert the custom fields in the session, you can add them when calling the

createNewSession

function.