If you’re using Java code, the documentation shows how to iterate over every turn instruction and get its properties:
// use the best path, see the GHResponse class for more possibilities.
PathWrapper path = rsp.getBest();
// points, distance in meters and time in millis of the full path
PointList pointList = path.getPoints();
double distance = path.getDistance();
long timeInMs = path.getTime();
InstructionList il = path.getInstructions();
// iterate over every turn instruction
for(Instruction instruction : il) {
instruction.getDistance();
...
}