Post Private Message to Selected User I've built an iOS app on the Drupal iOS SDK. That said, I want my logged in user to be able to send a message to another Drupal user. Right now, I'm successfully pulling received Private Messages from my services endpoint - but does anyone know how I would go about successfully posting a message to a specific user id? Are there any tutorials out there for this?
here is a rough sketch of how you could go about this:

iOS Side: Add a node using DIOSNode's add

Drupal Side:


Create you own custom content type, e.g. CustomMessage, with a UserID field for collecting the target user of each message. This could be a simple text field, or an Entity Reference field, single or multi-valued.
Create a Services View that will use a user's UID as a contextual filter, in order to display all messages targeted at a specific user.