Hi usfshihy,
Please do not bump threads that have not gone unanswered for 4 or more days from the last post. This clutters the forums and makes it exceedingly difficult to help anyone. To answer your question, check out this tutorial I made last year, it should help get you started on the blueprint side:
After getting this set up, the actual swings will have to be animated and you will want to normalize your mouse movement to a 0-1 scale to determine how far the player swings in each direction, etc. I hope this helps get you going!