Chicken in a crock pot

This is the easiest and most delicious way to cook a whole chicken!
All you need is one whole chicken and some spices (whatever you fancy).
I normally use:

(Well, I actually just sprinkle the following but here are some measurements that you can mix and rub all over the bird)

1 teaspoon salt
1 teaspoon onion powder
½-1 teaspoon thyme
½ teaspoon garlic powder
¼ teaspoon cayenne (red) pepper
¼ teaspoon black pepper
1-2 tsp paprika
Optional- 1 large onion and other veggies if desired but not necessary.