updateList.js

const LIST = gql`
  query List($category: String!) {
    list(category: $category) {
      id
      description
    }
  }
`
 
const [list, setList] = useAppState({
  query: LIST,
  variables: { category: "to-be-done" }
})
 
const todo = {
  id: "1234",
  description: "Take the cat to the vet 🐱 🏥‍ ",
  __typename: "Item"
}
 
setList([...(list || []), todo])