I have been testing out the JSON REST API the past few days with some pretty good results however I have run into a bit of a barrier when making a post.
I need to hook into the post call before the post is made, however I can't for the life of me find any way to do this. It's fairly important that this is possible, otherwise I may well have to come up with my own solution (which isn't ideal!).
The nearest I have come to being able to do this is by using the following action:
However this is called after the post has been made.
Does anyone have any ideas or is it simply not possible? This gitHub thread pretty much says it isn't possible.