Is there a way for me to check what direction the player is moving in

Is there a way for me to check what direction the player is moving in? I am making a first person shooter and was wondering if there is a way to tell what direction the player is moving in.

Do you mean NS/EW, that kind of thing?

direction relative to what exactly?

Relative to the character

Get velocity of player, normalize it.
Get forward vector of player character, normalize it

You have 2 vectors, where player is facing and where is going.
Dot product is cosine betwen those 2 vectors.

Now if you want only horizontal direction
multiply player direction and player velocity by: [1,1,0] to “zero” vertical values

to get where in the world player is moving simply pick values from NORMALIZED velocity vector

Get Velocity | Unreal Engine Documentation + Normalize | Unreal Engine Documentation = unit direction vector.