因此,我将向您展示我的工作:
const updateUser = async (userUpdates: User) => {
const data = await UserService.updateUser(userUpdates); // return axios data
return data;
}
// if you want optimistic updating:
const { mutate: mutateUser } = useMutation(updateUser, {
onMutate: async (userUpdates) => {
// Cancel any outgoing refetches (so they don't overwrite our optimistic update)
await queryClient.cancelQueries(['user', userUpdates.id]);
// Snapshot the previous value
const previousUser = queryClient.getQueryData(['user', userUpdates.id]);
// Optimistically update to the new value
queryClient.setQueryData(['user', userUpdates.id], userUpdates);
// Return a context with the previous user and updated user
return { previousUser, userUpdates }; // context
},
// If the mutation fails, use the context we returned above
onError: (err, userUpdates, context) => {
queryClient.setQueryData(['user', context.userUpdates.id], context.previousUser);
},
// Always refetch after error or success:
onSettled: (userUpdates) => {
queryClient.invalidateQueries(['user', userUpdates.id]);
}
});
// then to update the user
const handleUpdateUser = (userUpdates: User) => mutateUser(userUpdates);
这一切都来自文档:
乐观更新