Has anyone been successful in training their cat to walk on a leash/harness?

I will online prescription drugs be getting a kitten soon. The problem is I live in an apartment and I’d **** for the cat to have to be inside 24/7, what kind of life would that be! So I’d like to train it to walk on a leash so that I can take it to the park with me and let it walk with me. I’d like to know any good websites that explain how to train them or any tips that you have.

Thanks for any help!